Trond Nordfjærn

Om

Main domains of research and supervision:

Social psychological factors and transportation mode use
Transport safety
Substance use and misuse in subgroups
Quantitative and qualitative research methods

Background and research profile:

Full Professor in Social Psychology, Department of Psychology, NTNU (2017 - ).

20% Senior research position at St.Olav's University Hospital, Clinic of Substance Use and Addiction Medicine (2017 - ).

20% Senior research position at NTNU Social Research/Samfunnsforskning (Studio Apertura). NFR funded position by the Safety and Security in Transport (TRANSIKK) Research Programme. (2013 - 2016).

Senior Researcher at the Norwegian Institute of Public Health (Sirus/FHI), Department of Drugs and Addiction (2013 - 2016).

Two doctoral degrees in psychology. PhD June 2011 thesis entitled: "Patients with Substance Use Disorders: An investigation of Relapse, Substance Use and Recovery", Dr. philos September 2011 thesis entitled: "Risk judgements, attitudes and behaviour in transport: Temporal, geographical and cultural differences".

Elected lifetime member of the Royal Norwegian Society of Sciences and Letters Academy (DKNVS) 2020 -

Awarded the scientific prize for young excellent researchers in the social sciences who have documented outstanding talent, originality and effort, and who have achieved extremely good results in their fields. Awarded by the Royal Norwegian Society of Sciences and Letters Academy (DKNVS) (2018).

Awarded the scientific prize from the Regional Health Care Enterprise (Helse Midt-Norge RHF) for excellent research among highly prioritized patient groups (2011).

Head of the Research Group on Transportation at the Department of Psychology, NTNU: https://www.ntnu.edu/psychology/transportation

Member of the Citizens, Environment and Safety (CES) https://www.ntnu.edu/psychology/ces, Learning and Skill Development https://www.ntnu.edu/web/psychology/learning-and-skill-development and Feedback tools in substance use, addiction and mental health disorders (FRAM) https://www.ntnu.edu/web/psychology/fram groups at the Department of Psychology, NTNU.

Head coordinator of the Introduction and Bachelor programmes at the Department of Psychology, NTNU (2017 - 2021).

Pedagogical development programme for university lecturers (PEDUP), NTNU (2018 - 2019).

Publikasjoner

2025

Studer, Nora; Schaffner, Dorothea; O’Hern, Steve; Nordfjærn, Trond; Alonso, Francisco; Brlek, Predrag. (2025) Smarter cycling, safer cycling? Acceptance of advanced cyclist assistance systems in 19 European countries. Ergonomics
Vitenskapelig artikkel
Zatsarnaja, Junianna; Reiter, Katharina; Mohnen, Alwine; Nordfjærn, Trond. (2025) Nudging Grid-Friendly Electric Vehicle Charging: Different Shades of Social Framing and the Power of Individual Factors. Ecological Economics
Vitenskapelig artikkel
Zatsarnaja, Junianna; Reiter, Katharina; Mehdizadeh, Milad; Nayum, Alim; Nordfjærn, Trond. (2025) Charged up with peace in mind: Unraveling the factors of range anxiety among norwegian electric vehicle drivers. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Zatsarnaja, Junianna; Mehdizadeh, Milad; Reiter, Katharina; Nayum, Alim; Nordfjærn, Trond. (2025) Charging Patterns and Motives of Electric Vehicle Drivers: Insights from Norway. Travel Behaviour & Society
Vitenskapelig artikkel
Mehdizadeh, Milad; Nordfjærn, Trond; Klöckner, Christian Andreas Nikolaus. (2025) Norwegians’ preferences for automated vehicles. Transportation Research Interdisciplinary Perspectives (TRIP)
Vitenskapelig artikkel

2024

Andersson, Helle Wessel; Nordfjærn, Trond; Mosti, Mats Peder. (2024) The relationship between the Hopkins symptom checklist-10 and diagnoses of anxiety and depression among inpatients with substance use disorders. Nordic Journal of Psychiatry
Vitenskapelig artikkel
Thorsrud, Tora; Bang, Marit Aspelund; Dahlgren, Anna Maria Camilla Lindvall; Nordfjærn, Trond; Weider, Siri. (2024) Cognitive remediation therapy for patients with eating disorders: a qualitative study. Journal of Eating Disorders
Vitenskapelig artikkel
Eitrheim, Maren Helene Rø; Nordfjærn, Trond; Log, Markus Metallinos; Tørset, Trude. (2024) Risk perception and trust in autonomous vehicles: a case study of ground handling employees at an international airport. Journal of Risk Research
Vitenskapelig artikkel

2023

Mehdizadeh, Milad; Nayum, Alim; Nordfjærn, Trond; Klöckner, Christian Andreas Nikolaus. (2023) Are Norwegian car users ready for a transition to Vehicle-to-grid technology?. Transport Policy
Vitenskapelig artikkel
Eitrheim, Maren Helene Rø; Log, Markus Metallinos; Tørset, Trude; Nordfjærn, Trond; Levin, Tomas. (2023) Driver Acceptance of Truck Platooning: State-of-the-Art and Insights from a Field Trial on Rural Roads.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Andersson, Helle Wessel; Mosti, Mats Peder; Nordfjærn, Trond. (2023) Inpatients in substance use treatment with co-occurring psychiatric disorders: a prospective cohort study of characteristics and relapse predictors. BMC Psychiatry
Vitenskapelig artikkel
Nilsen, David; Nissen, Oda; Nordfjærn, Trond; Hara, Karen Walseth; Stiles, Tore C. (2023) Who Returns to work? Exploring the Role of Interpersonal Problems in Occupational Rehabilitation. Journal of occupational rehabilitation
Vitenskapelig artikkel
Mehdizadeh, Milad; Nordfjærn, Trond; Klöckner, Christian Andreas Nikolaus. (2023) Estimating financial compensation and minimum guaranteed charge for vehicle-to-grid technology. Energy Policy
Vitenskapelig artikkel
Nordfjærn, Trond; Nordgård, Amanda; Mehdizadeh, Milad. (2023) Aberrant driving behaviour among home healthcare workers. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel

2022

Mehdizadeh, Milad; Nordfjærn, Trond; Klöckner, Christian Andreas Nikolaus. (2022) Drunk or Sober? Number of alcohol units perceived to be safe before riding e-scooter. Accident Analysis and Prevention
Vitenskapelig artikkel
Høydal, Maritha Orseth; Nordfjærn, Trond. (2022) Shared parenting with an individual affected by a substance use disorder: a pilot study. Tidsskrift for Norsk psykologforening (Psykologtidsskriftet)
Vitenskapelig artikkel
Ehteshamrad, Shideh; Saffarzadeh, Mahmood; Mamdoohi, Amir Reza; Nordfjærn, Trond. (2022) Behaviour of parents and children in the way they use public transport: A case study of Iranian households. Case Studies on Transport Policy
Vitenskapelig artikkel
Andersson, Helle Wessel; Mosti, Mats Peder; Nordfjærn, Trond. (2022) Suicidal ideation among inpatients with substance use disorders: Prevalence, correlates and gender differences. Psychiatry Research
Vitenskapelig artikkel
Mehdizadeh, Milad; Zavareh, Mohsen; Nordfjærn, Trond. (2022) Explaining trip generation during the COVID-19 pandemic: A psychological perspective. Journal of Transport and Health
Vitenskapelig artikkel
Eitrheim, Maren Helene Rø; Log, Markus Metallinos; Tørset, Trude; Levin, Tomas; Nordfjærn, Trond. (2022) Driver Workload in Truck Platooning: Insights from an On-Road Pilot Study on Rural Roads.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Zabihi, Farimah; Davoodi, Seyed Rasoul; Nordfjærn, Trond. (2022) Investigating the role of health belief model on seat belt use for front seat passengers on urban and rural roads. International Journal of Injury Control and Safety Promotion
Vitenskapelig artikkel
Mehdizadeh, Milad; Ardameh, Saleh; Nordfjærn, Trond. (2022) A hybrid speed choice model: The role of human factors. Transportation letters
Vitenskapelig artikkel
Nadimi, Navid; Nordfjærn, Trond; Lori, Hamed Shamsadini; Khalifeh, Vahid. (2022) Improving attitudes toward cycling in a Middle East and North Africa region city. Journal of urban planning and development
Vitenskapelig artikkel
Mehdizadeh, Milad; Nordfjærn, Trond; Kløckner, Christian. (2022) A systematic review of the agent-based modelling/simulation paradigm in mobility transition. Technological Forecasting and Social Change
Vitenskapelig oversiktsartikkel/review

2021

Shoabjareh, Azamsadat Hosseini; Mamdoohi, Amir Reza; Nordfjærn, Trond. (2021) Analysis of Pedestrians’ Behavior: A Segmentation Approach Based on Latent Variables. Accident Analysis and Prevention
Vitenskapelig artikkel
Johannessen, Dagny Adriaenssen; Geirdal, Amy Østertun; Nordfjærn, Trond. (2021) Investigating the factor structure of a translated recovery-orientation instrument in inpatient treatment for substance use disorder. Substance Abuse Treatment, Prevention, and Policy
Vitenskapelig artikkel
Zavareh, Mohsen; Mehdizadeh, Milad; Nordfjærn, Trond. (2021) Demand for mitigating the risk of COVID-19 infection in public transport: the role of social trust and fatalistic beliefs. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Nordfjærn, Trond; Melby, Line; Kaasbøll, Jannike; Ådnanes, Marian. (2021) The importance of interdisciplinarity in accommodating patient needs among norwegian nurses. Journal of Psychiatric and Mental Health Nursing
Vitenskapelig artikkel
Johannessen, Dagny Adriaenssen; Nordfjærn, Trond; Geirdal, Amy Østertun. (2021) Work-Related Satisfaction among Clinicians Working at Inpatient Treatment Facilities for Substance Use Disorder: The Role of Recovery Orientation. International Journal of Environmental Research and Public Health (IJERPH)
Vitenskapelig artikkel
Hezaveh, Amin; Cherry, Christopher; Nordfjærn, Trond. (2021) A home-based approach to understanding the effect of spatial autocorrelation on seat belt non-use. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Nordfjærn, Trond; Mehdizadeh, Milad; Zavareh, Mohsen. (2021) Social psychology of Coronavirus disease 2019: Do fatalism and comparative optimism affect attitudes and adherence to sanitary protocols?. Frontiers in Psychology
Vitenskapelig artikkel
Nordfjærn, Trond; Kummeneje, An-Margritt S; Zavareh, Mohsen; Mehdizadeh, Milad; Rundmo, Torbjørn. (2021) Risk Perception in Transport: A Review of the State of the Art.
Faglig kapittel

2020

Nayum, Alim; Nordfjærn, Trond. (2020) Predictors of Public Transport Use among University Students during the Winter: A MIMIC Modelling Approach. Travel Behaviour & Society
Vitenskapelig artikkel
Johannessen, Dagny Adriaenssen; Nordfjærn, Trond; Geirdal, Amy Østertun. (2020) Substance use disorder patients’ expectations on transition from treatment to post-discharge period. Nordic Studies on Alcohol and Drugs (NAD)
Vitenskapelig artikkel
Zavareh, Mohsen; Mehdizadeh, Milad; Nordfjærn, Trond. (2020) Active travel as a pro-environmental behaviour: An integrated framework. Transportation Research Part D: Transport and Environment
Vitenskapelig artikkel
Dabirinejad, Shahab; Kashani, Ali Tavakoli; Nordfjærn, Trond. (2020) The association between lifestyle and aberrant driving behavior among Iranian car drivers. Transportation Research Interdisciplinary Perspectives (TRIP)
Vitenskapelig artikkel
Zavareh, Mohsen; Mehdizadeh, Milad; Nordfjærn, Trond. (2020) If I know when you will arrive, I will let you walk to school: The role of information technology  . Journal of Safety Research
Vitenskapelig artikkel
Sheykhfard, Abbas; Haghighi, Farshidreza; Nordfjærn, Trond; Soltaninejad, Mostafa. (2020) Structural Equation Modelling of potential risk factors for pedestrian accidents in rural and urban roads. International Journal of Injury Control and Safety Promotion
Vitenskapelig artikkel
Andersson, Helle Wessel; Lauvsnes, Anders Dahlen Forsmo; Nordfjærn, Trond. (2020) Emerging adults in inpatient substance use treatment: A prospective cohort study of patient characteristics and treatment outcomes. European Addiction Research
Vitenskapelig artikkel
Andersson, Helle Wessel; Nordfjærn, Trond. (2020) Factors associated with quality of life trajectories among inpatients treated for alcohol use disorders: A prospective cohort study  . Addictive Behaviors Reports
Vitenskapelig artikkel
Zavareh, Mohsen; Abolhasannejad, Vahid; Mamdoohi, Amir Reza; Nordfjærn, Trond. (2020) Barriers to children’s walking to school in Iranian and Chinese samples. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel

2019

Hezaveh, Amin; Nordfjærn, Trond; Everett, Jerry; Cherry, Christopher. (2019) The Correlation Between Education, Engineering, Enforcement, and Self-Reported Seat Belt Use in Tennessee: Incorporating Heterogeneity and Time of Day Effects. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Mehdizadeh, Milad; Nordfjærn, Trond; Mamdoohi, Amir Reza. (2019) Environmental norms and sustainable transport mode choice on children’s school travels: The norm-activation theory. International Journal of Sustainable Transportation
Vitenskapelig artikkel
Johannessen, Dagny Adriaenssen; Nordfjærn, Trond; Geirdal, Amy Østertun. (2019) Change in psychosocial factors connected to coping after inpatient treatment for substance use disorder: A systematic review. Substance Abuse Treatment, Prevention, and Policy
Vitenskapelig oversiktsartikkel/review
Johannessen, Dagny Adriaenssen; Nordfjærn, Trond; Geirdal, Amy Østertun. (2019) Psychosocial factors associated with coping behaviour after inpatient treatment for substance use disorder (SUD): A systematic review study protocol. BMJ Open
Vitenskapelig oversiktsartikkel/review
Nordfjærn, Trond; Lind, Hans Brende; Simsekoglu, Ozlem; Jørgensen, Stig Halvard; Lund, Ingunn Olea; Rundmo, Torbjørn. (2019) The role of social cognition in perceived thresholds for transport mode change. Transport Policy
Vitenskapelig artikkel
Zabihi, Farimah; Davoodi, Seyed Rasoul; Nordfjærn, Trond. (2019) The role of perceived risk, reasons for non-seat belt use, and demographic characteristics for seat belt use on urban and rural roads. International Journal of Injury Control and Safety Promotion
Vitenskapelig artikkel
Mehdizadeh, Milad; Zavareh, Mohsen Fallah; Nordfjærn, Trond. (2019) Mono- and multimodal green transport use on university trips during winter and summer: hybrid choice models on the norm-activation theory. Transportation Research Part A: Policy and Practice
Vitenskapelig artikkel
Stallvik, Marianne; Flemmen, Grete; Salthammer, Jo Arild; Nordfjærn, Trond. (2019) Assessing health service satisfaction among users with substance use disorders within the municipalities in Norway. Substance Abuse Treatment, Prevention, and Policy
Vitenskapelig artikkel
Rundmo, Torbjørn; Nordfjærn, Trond. (2019) Judgement of Transport Security, Risk Sensitivity and Travel Mode Use in Urban Areas. Sustainability
Vitenskapelig artikkel
Nordfjærn, Trond; Egset, Kaja Solland; Mehdizadeh, Milad. (2019) “Winter is coming”: Psychological and situational factors affecting transportation mode use among university students. Transport Policy
Vitenskapelig artikkel
Egset, Kaja Solland; Nordfjærn, Trond. (2019) The role of transport priorities, transport attitudes and situational factors for sustainable transport mode use in wintertime. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Mehdizadeh, Milad; Shariat-Mohaymany, Afshin; Nordfjærn, Trond. (2019) Driver behaviour and crash involvement among professional taxi and truck drivers: Light passenger cars versus heavy goods vehicles. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel

2018

Nordfjærn, Trond. (2018) Religiosity and alcohol use: Is religiosity important for abstention and consumption levels in the second half of life?. Substance Use & Misuse
Vitenskapelig artikkel
Rundmo, Torbjørn; Kummeneje, An-Magritt; Nordfjærn, Trond. (2018) Perception of security and use of public travel modes in an urban Norwegian public.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Andersson, Helle Wessel; Wenaas, Merethe; Nordfjærn, Trond. (2018) Relapse after inpatient substance use treatment: A prospective cohort study among users of illicit substances. Addictive Behaviours
Vitenskapelig artikkel
Nordfjærn, Trond; Rundmo, Torbjørn. (2018) Acceptance of disincentives to driving and pro-environmental transport intentions: the role of value structure, environmental beliefs and norm activation. Transportation
Vitenskapelig artikkel
Andersson, Helle Wessel; Steinsbekk, Aslak; Walderhaug, Espen; Otterholt, Eli; Nordfjærn, Trond. (2018) Predictors of Dropout From Inpatient Substance Use Treatment: A Prospective Cohort Study. Substance Abuse: Research and Treatment
Vitenskapelig artikkel
Nordfjærn, Trond; Rundmo, Torbjørn. (2018) Transport risk evaluations associated with past exposure to adverse security events in public transport. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Ostling, Grete Lauritsen; Nordfjærn, Trond. (2018) Changes in opiate and stimulant use through 10 years: The role of contextual factors, mental health disorders and psychosocial factors in a prospective SUD treatment cohort study. PLOS ONE
Vitenskapelig artikkel
Zavareh, Mohsen Fallah; Hezaveh, Amin Mohamadi; Nordfjærn, Trond. (2018) Intention to use bicycle helmet as explained by the Health Belief Model, comparative optimism and risk perception in an Iranian sample. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Hezaveh, Amin; Nordfjærn, Trond; Mamdoohi, Amir Reza; Simsekoglu, Ozlem. (2018) Predictors of self-reported crashes among Iranian drivers: Exploratory analysis of an Extended Driver Behavior Questionnaire. Promet
Vitenskapelig artikkel
Mehdizadeh, Milad; Shariat, Afshin; Nordfjærn, Trond. (2018) Accident involvement among Iranian lorry drivers: Direct and indirect effects of background variables and aberrant driving behaviour. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Mehdizadeh, Milad; Zavareh, Mohsen; Nordfjærn, Trond. (2018) School Travel Mode Use: Direct and Indirect Effects through Attitudes and Transport Priorities. Transportmetrica A: Transport Science
Vitenskapelig artikkel

2017

Mehdizadeh, Milad; Nordfjærn, Trond; Mamdoohi, Amir Reza; Mohaymany, Afshin Shariat. (2017) The role of parental risk judgements, transport safety attitudes, transport priorities and accident experiences on pupils’ walking to school. Accident Analysis and Prevention
Vitenskapelig artikkel
Rundmo, Torbjørn; Nordfjærn, Trond. (2017) Does risk perception really exist?. Safety Science
Vitenskapelig artikkel
Nordfjærn, Trond. (2017) Violence involvement among nightlife patrons: the relative role of demographics and substance use. Aggressive Behavior
Vitenskapelig artikkel
Mehdizadeh, Milad; Mamdoohi, Amir Reza; Nordfjærn, Trond. (2017) Walking time to school, children’s active school travel and their related factors. Journal of Transport and Health
Vitenskapelig artikkel
Nordfjærn, Trond; Salthammer, Jo Arild. (2017) Alcohol intoxication among cannabis users in a school-based adolescent sample. Drugs: education prevention and policy
Vitenskapelig artikkel
Hezaveh, Amin Mohamadi; Zavareh, Mohsen Fallah; Cherry, Christopher R; Nordfjærn, Trond. (2017) Errors and Violations in Relation to Bicyclists' Crash Risks: Development of the Bicycle Rider Behavior Questionnaire (BRBQ). Journal of Transport and Health
Vitenskapelig artikkel
Nordfjærn, Trond; Zavareh, Mohsen. (2017) Does the value-belief-norm theory predict acceptance of disincentives to driving and active mode choice preferences for children's school travels among Chinese parents?. Journal of Environmental Psychology
Vitenskapelig artikkel
Zavareh, Mohsen; Mamdoohi, Amir Reza; Nordfjærn, Trond. (2017) The effects of indicating rear-end collision risk via variable message signs on traffic behaviour. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Simsekoglu, Ozlem; Nordfjærn, Trond. (2017) The role of safety culture/climate and social cognitive factors for driving behaviors of Turkish professional drivers transporting petroleum products. Journal of Risk Research
Vitenskapelig artikkel

2016

Mehdizadeh, Milad; Nordfjærn, Trond; Mamdoohi, Amir Reza. (2016) The role of socio-economic, built environment and psychological factors in parental mode choice for their children in an Iranian setting. Transportation
Vitenskapelig artikkel
Nordfjærn, Trond; Simsekoglu, Özlem; Rundmo, Torbjørn. (2016) Active transport, public transport and electric car as perceived alternatives in a motorized Norwegian sample. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Gjerde, Hallvard; Nordfjærn, Trond; Bretteville-Jensen, Anne Line; Edland-Gryt, Marit; Furuhaugen, Håvard; Karinen, Ritva Anneli. (2016) Comparison of drugs used by nightclub patrons and criminal offenders in Oslo, Norway. Forensic Science International
Vitenskapelig artikkel
Nordfjærn, Trond; Edland-Gryt, Marit; Bretteville-Jensen, Anne Line; Buvik, Kristin; Gripenberg, Johanna. (2016) Recreational drug use in the Oslo nightlife setting: study protocol for a cross-sectional time series using biological markers, self-reported and qualitative data. BMJ Open
Vitenskapelig artikkel
Lund, Ingunn Olea; Nordfjærn, Trond; Rundmo, Torbjørn. (2016) Changes in transport risk perception in urban populations in Norway from 2004 to 2013. Transportation planning and technology (Print)
Vitenskapelig artikkel
Mehdizadeh, Milad; Mamdoohi, Amir Reza; Zavareh, Mohsen; Nordfjærn, Trond. (2016) The role of parental attitudes towards walking on children walking to schools. Journal of Traffic and Logistics Engineering
Vitenskapelig artikkel
Nordfjærn, Trond; Zavareh, Mohsen. (2016) Individualism, collectivism and pedestrian safety: A comparative study of young adults from Iran and Pakistan. Safety Science
Vitenskapelig artikkel
Nordfjærn, Trond; Bretteville-Jensen, Anne Line; Edland-Gryt, Marit; Gripenberg, Johanna. (2016) Risky substance use among young adults in the nightlife arena: An underused setting for risk-reducing interventions?. Scandinavian Journal of Public Health
Vitenskapelig artikkel

2015

Nordfjærn, Trond; Lind, Hans Brende; Şimşekoğlu, Özlem; Jørgensen, Stig Halvard; Lund, Ingunn Olea; Rundmo, Torbjørn. (2015) Habitual, safety and security factors related to mode use on two types of travels among urban Norwegians. Safety Science
Vitenskapelig artikkel
Andreas, Jasmina Burdzovic; Lauritzen, Grete Ostling; Nordfjærn, Trond. (2015) Co-occurrence between mental distress and poly-drug use: A ten year prospective study of patients from substance abuse treatment. Addictive Behaviours
Vitenskapelig artikkel
Nordfjærn, Trond; Rundmo, Torbjørn. (2015) Environmental norms, transport priorities and resistance to change associated with acceptance of push measures in transport. Transport Policy
Vitenskapelig artikkel
Nordfjærn, Trond; Hezaveh, Amin; Mamdoohi, Amir Reza. (2015) An analysis of reported driver behaviour in samples of domestic and expatriate Iranians. Journal of Risk Research
Vitenskapelig artikkel
Nordfjærn, Ôzlem S.; Nordfjærn, Trond; Rundmo, Torbjørn. (2015) Predictors of car use habit strength in an urban Norwegian public. Transportation
Vitenskapelig artikkel
Lind, Hans Brende; Nordfjærn, Trond; Jørgensen, Stig Halvard; Rundmo, Torbjørn. (2015) The value-belief-norm theory, personal norms and sustainable travel mode choice in urban areas. Journal of Environmental Psychology
Vitenskapelig artikkel
Simsekoglu, Özlem; Nordfjærn, Trond; Rundmo, Torbjørn. (2015) The role of attitudes, transport priorities, and car use habit for travel mode use and intentions to use public transportation in an urban Norwegian public. Transport Policy
Vitenskapelig artikkel
Lund, Ingunn Olea; Bukten, Anne; Storvoll, Elisabet; Moan, Inger Synnøve; Skurtveit, Svetlana; Handal, Marte. (2015) A cohort study on long-term adverse effects of parental drinking: Background and study design. Substance Abuse: Research and Treatment
Vitenskapelig artikkel
Nordfjærn, Trond; Brunborg, Geir Scott. (2015) Associations between human values and alcohol consumption among Norwegians in the second half of life. Substance Use & Misuse
Vitenskapelig artikkel
Thompson, Jason; Berk, Michael; O'Donnell, Meaghan; Stafford, Lesley; Nordfjærn, Trond. (2015) The association between attributions of responsibility for motor vehicle accidents and patient satisfaction: A study within a no-fault injury compensation system. Clinical Rehabilitation
Vitenskapelig artikkel
Mamdoohi, Amir Reza; Zavareh, Mohsen; Hassani, Abolfazl; Nordfjærn, Trond. (2015) A Monte-Carlo simulation of chain reaction rear end potential collisions on freeways. International journal of traffic and transportation engineering
Vitenskapelig artikkel

2014

Nordfjærn, Trond; Bjerkeset, Ottar; Bratberg, Grete Helen; Moylan, Steven; Berk, Michael; Gråwe, Rolf W.. (2014) Socio-demographic, lifestyle and psychological predictors of benzodiazepine and z-hypnotic use patterns. Nordic Journal of Psychiatry
Vitenskapelig artikkel
Nordfjærn, Trond; Simsekoglu, Özlem; Can, Seda; Somer, Oya. (2014) Social cognition and personality traits related to risky driving in a Turkish sample. Journal of Risk Research
Vitenskapelig artikkel
Nordfjærn, Trond; Simsekoglu, Özlem; Lind, Hans Brende; Jørgensen, Stig Halvard; Rundmo, Torbjørn. (2014) Transport priorities, risk perception and worry associated with mode use and preferences among Norwegian commuters. Accident Analysis and Prevention
Vitenskapelig artikkel
Nordfjærn, Trond; Rundmo, Torbjørn. (2014) Personality, risk cognitions and motivation related to demand of risk mitigation in transport among Norwegians. Safety Science
Vitenskapelig artikkel
Nordfjærn, Trond; Simsekoglu, Özlem; Rundmo, Torbjørn. (2014) The role of deliberate planning, car habit and resistance to change in public transportation mode use. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Nordfjærn, Trond; Simsekoglu, Özlem; Zavareh, Mohsen; Hezaveh, Amin; Mamdoohi, Amir; Rundmo, Torbjørn. (2014) Road traffic culture and personality traits related to traffic safety in Turkish and Iranian samples. Safety Science
Vitenskapelig artikkel
Thompson, Jason; Berk, Michael; O'Donnell, Meaghan; Stafford, Lesley; Nordfjærn, Trond. (2014) Attributions of responsibility and recovery within a no-fault insurance compensation system. Rehabilitation Psychology
Vitenskapelig artikkel
Nordfjærn, Trond; Simsekoglu, Özlem; Rundmo, Torbjørn. (2014) Culture related to road traffic safety: A comparison of eight countries using two conceptualizations of culture. Accident Analysis and Prevention
Vitenskapelig artikkel
Nordfjærn, Trond; Şimşekoğlu, Özlem. (2014) Empathy, conformity, and cultural factors related to aberrant driving behaviour in a sample of Urban Turkish drivers. Safety Science
Vitenskapelig artikkel
Mamdoohi, Amir; Zavareh, Mohsen; Hyden, Christer; Nordfjærn, Trond. (2014) A Comparative Analysis of Safety Performance Indicators Based on Inductive Loop Detector Data. Promet
Vitenskapelig artikkel
Thompson, Jason; O’Donnell, Meaghan; Stafford, Lesley; Nordfjærn, Trond; Berk, Michael. (2014) Association between attributions of responsibility for motor vehicle crashes, depressive symptoms, and return to work. Rehabilitation Psychology
Vitenskapelig artikkel

2013

Bergly, Tone Helene; Nordfjærn, Trond; Hagen, Roger. (2013) The dimensional structure of SCL-90-R in a sample of patients with substance use disorder. Journal of Substance Use
Vitenskapelig artikkel
Nordfjærn, Trond; Bjerkeset, Ottar; Moylan, Steven; Berk, Michael; Gråwe, Rolf W.. (2013) Clusters of personality traits and psychological symptoms associated with later benzodiazepine prescriptions in the general population: The HUNT Cohort Study. Addictive Behaviours
Vitenskapelig artikkel
Rundmo, Torbjørn; Nordfjærn, Trond. (2013) Predictors of demand for risk mitigation in transport. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Nordfjærn, Trond. (2013) Prospective associations between benzodiazepine use and later life satisfaction, somatic pain and psychological health among the elderly. Human Psychopharmacology: Clinical and Experimental
Vitenskapelig artikkel
Simsekoglu, Özlem; Nordfjærn, Trond; Zavareh, Mohsen; Hezaveh, Amin; Mamdoohi, Amir; Rundmo, Torbjørn. (2013) Risk perceptions, fatalism and driver behaviors in Turkey and Iran. Safety Science
Vitenskapelig artikkel
Nordfjærn, Trond; Rundmo, Torbjørn. (2013) Road traffic safety beliefs and driver behaviour among personality subtypes of drivers in the Norwegian population. Traffic Injury Prevention
Vitenskapelig artikkel
Nordfjærn, Trond; Dahl, Hilde; Flemmen, Grete. (2013) Social influence, health variables, and criminal behaviours associated with substance use among rural Norwegian adolescents. Drugs: education prevention and policy
Vitenskapelig artikkel
Nordfjærn, Trond. (2013) Prevalence of substance use and mental distress among patients on waiting lists for substance use disorder treatment. Journal of Psychoactive Drugs
Vitenskapelig artikkel
Nordfjærn, Trond; Simsekoglu, Özlem. (2013) The Role of Cultural Factors and Attitudes for Pedestrian Behaviour in an Urban Turkish Sample. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Rundmo, Torbjørn; Nordfjærn, Trond; Roche-Cerasi, Isabelle. (2013) Objective and Perceived Risk Estimates of Travel Modes in the Norwegian Public. Human and Ecological Risk Assessment
Vitenskapelig artikkel

2012

Nordfjærn, Trond; Jørgensen, Stig Halvard; Rundmo, Torbjørn. (2012) Cultural and Socio-Demographic Predictors of Car Accident Involvement in Norway, Ghana, Tanzania and Uganda. Safety Science
Vitenskapelig artikkel
Hassel, Anette; Nordfjærn, Trond; Hagen, Roger. (2012) Psychological and interpersonal distress among patients with substance use disorders: Are these factors associated with continued drug use and do they change during treatment?. Journal of Substance Use
Vitenskapelig artikkel
Nordfjærn, Trond. (2012) A population-based cohort study of anxiety, depression, sleep and alcohol outcomes among benzodiazepine and z-hypnotic users. Addictive Behaviours
Vitenskapelig artikkel
Simsekoglu, Özlem; Nordfjærn, Trond; Rundmo, Torbjørn. (2012) Traffic risk perception, road safety attitudes, and behaviors among road users: a comparison of Turkey and Norway. Journal of Risk Research
Vitenskapelig artikkel
Nordfjærn, Trond; Simsekoglu, Özlem; Rundmo, Torbjørn. (2012) A comparison of road traffic culture, risk assessment and speeding predictors between Norway and Turkey. Risk Management: An International Journal
Vitenskapelig artikkel
Moylan, Steven; Giorlando, Frank; Nordfjærn, Trond; Berk, Michael. (2012) The role of alprazolam for the treatment of panic disorder in Australia. Australian and New Zealand journal of psychiatry (Print)
Vitenskapelig artikkel
Nordfjærn, Trond; Jørgensen, Stig Halvard; Rundmo, Torbjørn. (2012) Safety attitudes, behaviour, anxiety and perceived control among professional and non-professional drivers. Journal of Risk Research
Vitenskapelig artikkel
Støver, Morten; Bratberg, Grete Helen; Nordfjærn, Trond; Krokstad, Steinar. (2012) Bruk av alkohol og medikamenter blant eldre (60+) i Norge. HUNT Forskningssenter, NTNU HUNT Forskningssenter, NTNU
Rapport
Lund, Ingunn Olea; Nordfjærn, Trond; Rundmo, Torbjørn. (2012) Associations between risk judgments and demand for transport risk mitigation. Journal of Risk Research
Vitenskapelig artikkel
Nordfjærn, Trond; Flemmen, Grete; Dahl, Hilde. (2012) Psychosocial factors related to mental distress among Norwegian rural adolescents. International Journal of Mental Health Promotion
Vitenskapelig artikkel

2011

Rundmo, Torbjørn; Nordfjærn, Trond; Iversen, Hilde Hestad; Oltedal, Sigve; Jørgensen, Stig Halvard. (2011) The role of risk perception and other risk-related judgements in transportation mode use. Safety Science
Vitenskapelig artikkel
Rundmo, Torbjørn; Nordfjærn, Trond; Roche-Cerasi, Isabelle. (2011) Objective and perceived travel mode risk.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Nordfjærn, Trond. (2011) Patients with Substance Use Disorders An investigation of Relapse, Substance Use and Recovery. Norges teknisk-naturvitenskapelige universitet Doktoravhandlinger ved NTNU, 1503-8181 (2011:166)
Doktorgradsavhandling
Nordfjærn, Trond. (2011) Risk Judgements, Attitudes and Behaviour in Transport: Temporal, Geographical and Cultural Differences. Norges teknisk-naturvitenskapelige universitet Doktoravhandlinger ved NTNU, 1503-8181 (2011:214)
Doktorgradsavhandling
Nordfjærn, Trond; Jørgensen, Stig Halvard; Rundmo, Torbjørn. (2011) A cross-cultural comparison of road traffic risk perceptions, attitudes towards traffic safety and driver behaviour. Journal of Risk Research
Vitenskapelig artikkel
Nordfjærn, Trond. (2011) Relapse patterns among patients with substance use disorders. Journal of Substance Use
Vitenskapelig artikkel
Nordfjærn, Trond. (2011) Do severity levels of substance use relate to self-reported variations in psychosocial distress?. Journal of Substance Use
Vitenskapelig artikkel

2010

Nordfjærn, Trond; Rundmo, Torbjørn; Hole, R.. (2010) Treatment and recovery as perceived by patients with substance addiction. Journal of Psychiatric and Mental Health Nursing
Vitenskapelig artikkel
Nordfjærn, Trond; Rundmo, Torbjørn. (2010) Differences in risk perception, priorities, worry and demand for risk mitigation related to transport among Norwegians in 2004 and 2008. Safety Science
Vitenskapelig artikkel
Nordfjærn, Trond; Jørgensen, Stig Halvard; Rundmo, Torbjørn. (2010) An investigation of driver attitudes and behaviour in rural and urban areas in Norway. Safety Science
Vitenskapelig artikkel
Nordfjærn, Trond; Hole, Reidar; Rundmo, Torbjørn. (2010) Interrelations between Patients' Personal Life Events, Psychosocial distress and Substance Use. Substance Use & Misuse
Vitenskapelig artikkel

2009

Jørgensen, Stig Halvard; Nordfjærn, Trond; Rundmo, Torbjørn. (2009) Does Place of Residence Matter in Risk Judgement and Attitudes towards Mode of Transportation?.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Nordfjærn, Trond; Rundmo, Torbjørn. (2009) Perceptions of traffic risk in an industrialised and a developing country. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel

2006

Nordfjærn, Trond. (2006) Perceived risk in an industrialized and a developing country : an examination of risk perception in Norway and Ghana. Norwegian university of science and technology Norwegian university of science and technology
Mastergradsoppgave

Tidsskriftspublikasjoner

Studer, Nora; Schaffner, Dorothea; O’Hern, Steve; Nordfjærn, Trond; Alonso, Francisco; Brlek, Predrag. (2025) Smarter cycling, safer cycling? Acceptance of advanced cyclist assistance systems in 19 European countries. Ergonomics
Vitenskapelig artikkel
Zatsarnaja, Junianna; Reiter, Katharina; Mohnen, Alwine; Nordfjærn, Trond. (2025) Nudging Grid-Friendly Electric Vehicle Charging: Different Shades of Social Framing and the Power of Individual Factors. Ecological Economics
Vitenskapelig artikkel
Zatsarnaja, Junianna; Reiter, Katharina; Mehdizadeh, Milad; Nayum, Alim; Nordfjærn, Trond. (2025) Charged up with peace in mind: Unraveling the factors of range anxiety among norwegian electric vehicle drivers. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Zatsarnaja, Junianna; Mehdizadeh, Milad; Reiter, Katharina; Nayum, Alim; Nordfjærn, Trond. (2025) Charging Patterns and Motives of Electric Vehicle Drivers: Insights from Norway. Travel Behaviour & Society
Vitenskapelig artikkel
Mehdizadeh, Milad; Nordfjærn, Trond; Klöckner, Christian Andreas Nikolaus. (2025) Norwegians’ preferences for automated vehicles. Transportation Research Interdisciplinary Perspectives (TRIP)
Vitenskapelig artikkel
Andersson, Helle Wessel; Nordfjærn, Trond; Mosti, Mats Peder. (2024) The relationship between the Hopkins symptom checklist-10 and diagnoses of anxiety and depression among inpatients with substance use disorders. Nordic Journal of Psychiatry
Vitenskapelig artikkel
Thorsrud, Tora; Bang, Marit Aspelund; Dahlgren, Anna Maria Camilla Lindvall; Nordfjærn, Trond; Weider, Siri. (2024) Cognitive remediation therapy for patients with eating disorders: a qualitative study. Journal of Eating Disorders
Vitenskapelig artikkel
Eitrheim, Maren Helene Rø; Nordfjærn, Trond; Log, Markus Metallinos; Tørset, Trude. (2024) Risk perception and trust in autonomous vehicles: a case study of ground handling employees at an international airport. Journal of Risk Research
Vitenskapelig artikkel
Mehdizadeh, Milad; Nayum, Alim; Nordfjærn, Trond; Klöckner, Christian Andreas Nikolaus. (2023) Are Norwegian car users ready for a transition to Vehicle-to-grid technology?. Transport Policy
Vitenskapelig artikkel
Andersson, Helle Wessel; Mosti, Mats Peder; Nordfjærn, Trond. (2023) Inpatients in substance use treatment with co-occurring psychiatric disorders: a prospective cohort study of characteristics and relapse predictors. BMC Psychiatry
Vitenskapelig artikkel
Nilsen, David; Nissen, Oda; Nordfjærn, Trond; Hara, Karen Walseth; Stiles, Tore C. (2023) Who Returns to work? Exploring the Role of Interpersonal Problems in Occupational Rehabilitation. Journal of occupational rehabilitation
Vitenskapelig artikkel
Mehdizadeh, Milad; Nordfjærn, Trond; Klöckner, Christian Andreas Nikolaus. (2023) Estimating financial compensation and minimum guaranteed charge for vehicle-to-grid technology. Energy Policy
Vitenskapelig artikkel
Nordfjærn, Trond; Nordgård, Amanda; Mehdizadeh, Milad. (2023) Aberrant driving behaviour among home healthcare workers. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Mehdizadeh, Milad; Nordfjærn, Trond; Klöckner, Christian Andreas Nikolaus. (2022) Drunk or Sober? Number of alcohol units perceived to be safe before riding e-scooter. Accident Analysis and Prevention
Vitenskapelig artikkel
Høydal, Maritha Orseth; Nordfjærn, Trond. (2022) Shared parenting with an individual affected by a substance use disorder: a pilot study. Tidsskrift for Norsk psykologforening (Psykologtidsskriftet)
Vitenskapelig artikkel
Ehteshamrad, Shideh; Saffarzadeh, Mahmood; Mamdoohi, Amir Reza; Nordfjærn, Trond. (2022) Behaviour of parents and children in the way they use public transport: A case study of Iranian households. Case Studies on Transport Policy
Vitenskapelig artikkel
Andersson, Helle Wessel; Mosti, Mats Peder; Nordfjærn, Trond. (2022) Suicidal ideation among inpatients with substance use disorders: Prevalence, correlates and gender differences. Psychiatry Research
Vitenskapelig artikkel
Mehdizadeh, Milad; Zavareh, Mohsen; Nordfjærn, Trond. (2022) Explaining trip generation during the COVID-19 pandemic: A psychological perspective. Journal of Transport and Health
Vitenskapelig artikkel
Zabihi, Farimah; Davoodi, Seyed Rasoul; Nordfjærn, Trond. (2022) Investigating the role of health belief model on seat belt use for front seat passengers on urban and rural roads. International Journal of Injury Control and Safety Promotion
Vitenskapelig artikkel
Mehdizadeh, Milad; Ardameh, Saleh; Nordfjærn, Trond. (2022) A hybrid speed choice model: The role of human factors. Transportation letters
Vitenskapelig artikkel
Nadimi, Navid; Nordfjærn, Trond; Lori, Hamed Shamsadini; Khalifeh, Vahid. (2022) Improving attitudes toward cycling in a Middle East and North Africa region city. Journal of urban planning and development
Vitenskapelig artikkel
Mehdizadeh, Milad; Nordfjærn, Trond; Kløckner, Christian. (2022) A systematic review of the agent-based modelling/simulation paradigm in mobility transition. Technological Forecasting and Social Change
Vitenskapelig oversiktsartikkel/review
Shoabjareh, Azamsadat Hosseini; Mamdoohi, Amir Reza; Nordfjærn, Trond. (2021) Analysis of Pedestrians’ Behavior: A Segmentation Approach Based on Latent Variables. Accident Analysis and Prevention
Vitenskapelig artikkel
Johannessen, Dagny Adriaenssen; Geirdal, Amy Østertun; Nordfjærn, Trond. (2021) Investigating the factor structure of a translated recovery-orientation instrument in inpatient treatment for substance use disorder. Substance Abuse Treatment, Prevention, and Policy
Vitenskapelig artikkel
Zavareh, Mohsen; Mehdizadeh, Milad; Nordfjærn, Trond. (2021) Demand for mitigating the risk of COVID-19 infection in public transport: the role of social trust and fatalistic beliefs. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Nordfjærn, Trond; Melby, Line; Kaasbøll, Jannike; Ådnanes, Marian. (2021) The importance of interdisciplinarity in accommodating patient needs among norwegian nurses. Journal of Psychiatric and Mental Health Nursing
Vitenskapelig artikkel
Johannessen, Dagny Adriaenssen; Nordfjærn, Trond; Geirdal, Amy Østertun. (2021) Work-Related Satisfaction among Clinicians Working at Inpatient Treatment Facilities for Substance Use Disorder: The Role of Recovery Orientation. International Journal of Environmental Research and Public Health (IJERPH)
Vitenskapelig artikkel
Hezaveh, Amin; Cherry, Christopher; Nordfjærn, Trond. (2021) A home-based approach to understanding the effect of spatial autocorrelation on seat belt non-use. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Nordfjærn, Trond; Mehdizadeh, Milad; Zavareh, Mohsen. (2021) Social psychology of Coronavirus disease 2019: Do fatalism and comparative optimism affect attitudes and adherence to sanitary protocols?. Frontiers in Psychology
Vitenskapelig artikkel
Nayum, Alim; Nordfjærn, Trond. (2020) Predictors of Public Transport Use among University Students during the Winter: A MIMIC Modelling Approach. Travel Behaviour & Society
Vitenskapelig artikkel
Johannessen, Dagny Adriaenssen; Nordfjærn, Trond; Geirdal, Amy Østertun. (2020) Substance use disorder patients’ expectations on transition from treatment to post-discharge period. Nordic Studies on Alcohol and Drugs (NAD)
Vitenskapelig artikkel
Zavareh, Mohsen; Mehdizadeh, Milad; Nordfjærn, Trond. (2020) Active travel as a pro-environmental behaviour: An integrated framework. Transportation Research Part D: Transport and Environment
Vitenskapelig artikkel
Dabirinejad, Shahab; Kashani, Ali Tavakoli; Nordfjærn, Trond. (2020) The association between lifestyle and aberrant driving behavior among Iranian car drivers. Transportation Research Interdisciplinary Perspectives (TRIP)
Vitenskapelig artikkel
Zavareh, Mohsen; Mehdizadeh, Milad; Nordfjærn, Trond. (2020) If I know when you will arrive, I will let you walk to school: The role of information technology  . Journal of Safety Research
Vitenskapelig artikkel
Sheykhfard, Abbas; Haghighi, Farshidreza; Nordfjærn, Trond; Soltaninejad, Mostafa. (2020) Structural Equation Modelling of potential risk factors for pedestrian accidents in rural and urban roads. International Journal of Injury Control and Safety Promotion
Vitenskapelig artikkel
Andersson, Helle Wessel; Lauvsnes, Anders Dahlen Forsmo; Nordfjærn, Trond. (2020) Emerging adults in inpatient substance use treatment: A prospective cohort study of patient characteristics and treatment outcomes. European Addiction Research
Vitenskapelig artikkel
Andersson, Helle Wessel; Nordfjærn, Trond. (2020) Factors associated with quality of life trajectories among inpatients treated for alcohol use disorders: A prospective cohort study  . Addictive Behaviors Reports
Vitenskapelig artikkel
Zavareh, Mohsen; Abolhasannejad, Vahid; Mamdoohi, Amir Reza; Nordfjærn, Trond. (2020) Barriers to children’s walking to school in Iranian and Chinese samples. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Hezaveh, Amin; Nordfjærn, Trond; Everett, Jerry; Cherry, Christopher. (2019) The Correlation Between Education, Engineering, Enforcement, and Self-Reported Seat Belt Use in Tennessee: Incorporating Heterogeneity and Time of Day Effects. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Mehdizadeh, Milad; Nordfjærn, Trond; Mamdoohi, Amir Reza. (2019) Environmental norms and sustainable transport mode choice on children’s school travels: The norm-activation theory. International Journal of Sustainable Transportation
Vitenskapelig artikkel
Johannessen, Dagny Adriaenssen; Nordfjærn, Trond; Geirdal, Amy Østertun. (2019) Change in psychosocial factors connected to coping after inpatient treatment for substance use disorder: A systematic review. Substance Abuse Treatment, Prevention, and Policy
Vitenskapelig oversiktsartikkel/review
Johannessen, Dagny Adriaenssen; Nordfjærn, Trond; Geirdal, Amy Østertun. (2019) Psychosocial factors associated with coping behaviour after inpatient treatment for substance use disorder (SUD): A systematic review study protocol. BMJ Open
Vitenskapelig oversiktsartikkel/review
Nordfjærn, Trond; Lind, Hans Brende; Simsekoglu, Ozlem; Jørgensen, Stig Halvard; Lund, Ingunn Olea; Rundmo, Torbjørn. (2019) The role of social cognition in perceived thresholds for transport mode change. Transport Policy
Vitenskapelig artikkel
Zabihi, Farimah; Davoodi, Seyed Rasoul; Nordfjærn, Trond. (2019) The role of perceived risk, reasons for non-seat belt use, and demographic characteristics for seat belt use on urban and rural roads. International Journal of Injury Control and Safety Promotion
Vitenskapelig artikkel
Mehdizadeh, Milad; Zavareh, Mohsen Fallah; Nordfjærn, Trond. (2019) Mono- and multimodal green transport use on university trips during winter and summer: hybrid choice models on the norm-activation theory. Transportation Research Part A: Policy and Practice
Vitenskapelig artikkel
Stallvik, Marianne; Flemmen, Grete; Salthammer, Jo Arild; Nordfjærn, Trond. (2019) Assessing health service satisfaction among users with substance use disorders within the municipalities in Norway. Substance Abuse Treatment, Prevention, and Policy
Vitenskapelig artikkel
Rundmo, Torbjørn; Nordfjærn, Trond. (2019) Judgement of Transport Security, Risk Sensitivity and Travel Mode Use in Urban Areas. Sustainability
Vitenskapelig artikkel
Nordfjærn, Trond; Egset, Kaja Solland; Mehdizadeh, Milad. (2019) “Winter is coming”: Psychological and situational factors affecting transportation mode use among university students. Transport Policy
Vitenskapelig artikkel
Egset, Kaja Solland; Nordfjærn, Trond. (2019) The role of transport priorities, transport attitudes and situational factors for sustainable transport mode use in wintertime. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Mehdizadeh, Milad; Shariat-Mohaymany, Afshin; Nordfjærn, Trond. (2019) Driver behaviour and crash involvement among professional taxi and truck drivers: Light passenger cars versus heavy goods vehicles. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Nordfjærn, Trond. (2018) Religiosity and alcohol use: Is religiosity important for abstention and consumption levels in the second half of life?. Substance Use & Misuse
Vitenskapelig artikkel
Andersson, Helle Wessel; Wenaas, Merethe; Nordfjærn, Trond. (2018) Relapse after inpatient substance use treatment: A prospective cohort study among users of illicit substances. Addictive Behaviours
Vitenskapelig artikkel
Nordfjærn, Trond; Rundmo, Torbjørn. (2018) Acceptance of disincentives to driving and pro-environmental transport intentions: the role of value structure, environmental beliefs and norm activation. Transportation
Vitenskapelig artikkel
Andersson, Helle Wessel; Steinsbekk, Aslak; Walderhaug, Espen; Otterholt, Eli; Nordfjærn, Trond. (2018) Predictors of Dropout From Inpatient Substance Use Treatment: A Prospective Cohort Study. Substance Abuse: Research and Treatment
Vitenskapelig artikkel
Nordfjærn, Trond; Rundmo, Torbjørn. (2018) Transport risk evaluations associated with past exposure to adverse security events in public transport. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Ostling, Grete Lauritsen; Nordfjærn, Trond. (2018) Changes in opiate and stimulant use through 10 years: The role of contextual factors, mental health disorders and psychosocial factors in a prospective SUD treatment cohort study. PLOS ONE
Vitenskapelig artikkel
Zavareh, Mohsen Fallah; Hezaveh, Amin Mohamadi; Nordfjærn, Trond. (2018) Intention to use bicycle helmet as explained by the Health Belief Model, comparative optimism and risk perception in an Iranian sample. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Hezaveh, Amin; Nordfjærn, Trond; Mamdoohi, Amir Reza; Simsekoglu, Ozlem. (2018) Predictors of self-reported crashes among Iranian drivers: Exploratory analysis of an Extended Driver Behavior Questionnaire. Promet
Vitenskapelig artikkel
Mehdizadeh, Milad; Shariat, Afshin; Nordfjærn, Trond. (2018) Accident involvement among Iranian lorry drivers: Direct and indirect effects of background variables and aberrant driving behaviour. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Mehdizadeh, Milad; Zavareh, Mohsen; Nordfjærn, Trond. (2018) School Travel Mode Use: Direct and Indirect Effects through Attitudes and Transport Priorities. Transportmetrica A: Transport Science
Vitenskapelig artikkel
Mehdizadeh, Milad; Nordfjærn, Trond; Mamdoohi, Amir Reza; Mohaymany, Afshin Shariat. (2017) The role of parental risk judgements, transport safety attitudes, transport priorities and accident experiences on pupils’ walking to school. Accident Analysis and Prevention
Vitenskapelig artikkel
Rundmo, Torbjørn; Nordfjærn, Trond. (2017) Does risk perception really exist?. Safety Science
Vitenskapelig artikkel
Nordfjærn, Trond. (2017) Violence involvement among nightlife patrons: the relative role of demographics and substance use. Aggressive Behavior
Vitenskapelig artikkel
Mehdizadeh, Milad; Mamdoohi, Amir Reza; Nordfjærn, Trond. (2017) Walking time to school, children’s active school travel and their related factors. Journal of Transport and Health
Vitenskapelig artikkel
Nordfjærn, Trond; Salthammer, Jo Arild. (2017) Alcohol intoxication among cannabis users in a school-based adolescent sample. Drugs: education prevention and policy
Vitenskapelig artikkel
Hezaveh, Amin Mohamadi; Zavareh, Mohsen Fallah; Cherry, Christopher R; Nordfjærn, Trond. (2017) Errors and Violations in Relation to Bicyclists' Crash Risks: Development of the Bicycle Rider Behavior Questionnaire (BRBQ). Journal of Transport and Health
Vitenskapelig artikkel
Nordfjærn, Trond; Zavareh, Mohsen. (2017) Does the value-belief-norm theory predict acceptance of disincentives to driving and active mode choice preferences for children's school travels among Chinese parents?. Journal of Environmental Psychology
Vitenskapelig artikkel
Zavareh, Mohsen; Mamdoohi, Amir Reza; Nordfjærn, Trond. (2017) The effects of indicating rear-end collision risk via variable message signs on traffic behaviour. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Simsekoglu, Ozlem; Nordfjærn, Trond. (2017) The role of safety culture/climate and social cognitive factors for driving behaviors of Turkish professional drivers transporting petroleum products. Journal of Risk Research
Vitenskapelig artikkel
Mehdizadeh, Milad; Nordfjærn, Trond; Mamdoohi, Amir Reza. (2016) The role of socio-economic, built environment and psychological factors in parental mode choice for their children in an Iranian setting. Transportation
Vitenskapelig artikkel
Nordfjærn, Trond; Simsekoglu, Özlem; Rundmo, Torbjørn. (2016) Active transport, public transport and electric car as perceived alternatives in a motorized Norwegian sample. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Gjerde, Hallvard; Nordfjærn, Trond; Bretteville-Jensen, Anne Line; Edland-Gryt, Marit; Furuhaugen, Håvard; Karinen, Ritva Anneli. (2016) Comparison of drugs used by nightclub patrons and criminal offenders in Oslo, Norway. Forensic Science International
Vitenskapelig artikkel
Nordfjærn, Trond; Edland-Gryt, Marit; Bretteville-Jensen, Anne Line; Buvik, Kristin; Gripenberg, Johanna. (2016) Recreational drug use in the Oslo nightlife setting: study protocol for a cross-sectional time series using biological markers, self-reported and qualitative data. BMJ Open
Vitenskapelig artikkel
Lund, Ingunn Olea; Nordfjærn, Trond; Rundmo, Torbjørn. (2016) Changes in transport risk perception in urban populations in Norway from 2004 to 2013. Transportation planning and technology (Print)
Vitenskapelig artikkel
Mehdizadeh, Milad; Mamdoohi, Amir Reza; Zavareh, Mohsen; Nordfjærn, Trond. (2016) The role of parental attitudes towards walking on children walking to schools. Journal of Traffic and Logistics Engineering
Vitenskapelig artikkel
Nordfjærn, Trond; Zavareh, Mohsen. (2016) Individualism, collectivism and pedestrian safety: A comparative study of young adults from Iran and Pakistan. Safety Science
Vitenskapelig artikkel
Nordfjærn, Trond; Bretteville-Jensen, Anne Line; Edland-Gryt, Marit; Gripenberg, Johanna. (2016) Risky substance use among young adults in the nightlife arena: An underused setting for risk-reducing interventions?. Scandinavian Journal of Public Health
Vitenskapelig artikkel
Nordfjærn, Trond; Lind, Hans Brende; Şimşekoğlu, Özlem; Jørgensen, Stig Halvard; Lund, Ingunn Olea; Rundmo, Torbjørn. (2015) Habitual, safety and security factors related to mode use on two types of travels among urban Norwegians. Safety Science
Vitenskapelig artikkel
Andreas, Jasmina Burdzovic; Lauritzen, Grete Ostling; Nordfjærn, Trond. (2015) Co-occurrence between mental distress and poly-drug use: A ten year prospective study of patients from substance abuse treatment. Addictive Behaviours
Vitenskapelig artikkel
Nordfjærn, Trond; Rundmo, Torbjørn. (2015) Environmental norms, transport priorities and resistance to change associated with acceptance of push measures in transport. Transport Policy
Vitenskapelig artikkel
Nordfjærn, Trond; Hezaveh, Amin; Mamdoohi, Amir Reza. (2015) An analysis of reported driver behaviour in samples of domestic and expatriate Iranians. Journal of Risk Research
Vitenskapelig artikkel
Nordfjærn, Ôzlem S.; Nordfjærn, Trond; Rundmo, Torbjørn. (2015) Predictors of car use habit strength in an urban Norwegian public. Transportation
Vitenskapelig artikkel
Lind, Hans Brende; Nordfjærn, Trond; Jørgensen, Stig Halvard; Rundmo, Torbjørn. (2015) The value-belief-norm theory, personal norms and sustainable travel mode choice in urban areas. Journal of Environmental Psychology
Vitenskapelig artikkel
Simsekoglu, Özlem; Nordfjærn, Trond; Rundmo, Torbjørn. (2015) The role of attitudes, transport priorities, and car use habit for travel mode use and intentions to use public transportation in an urban Norwegian public. Transport Policy
Vitenskapelig artikkel
Lund, Ingunn Olea; Bukten, Anne; Storvoll, Elisabet; Moan, Inger Synnøve; Skurtveit, Svetlana; Handal, Marte. (2015) A cohort study on long-term adverse effects of parental drinking: Background and study design. Substance Abuse: Research and Treatment
Vitenskapelig artikkel
Nordfjærn, Trond; Brunborg, Geir Scott. (2015) Associations between human values and alcohol consumption among Norwegians in the second half of life. Substance Use & Misuse
Vitenskapelig artikkel
Thompson, Jason; Berk, Michael; O'Donnell, Meaghan; Stafford, Lesley; Nordfjærn, Trond. (2015) The association between attributions of responsibility for motor vehicle accidents and patient satisfaction: A study within a no-fault injury compensation system. Clinical Rehabilitation
Vitenskapelig artikkel
Mamdoohi, Amir Reza; Zavareh, Mohsen; Hassani, Abolfazl; Nordfjærn, Trond. (2015) A Monte-Carlo simulation of chain reaction rear end potential collisions on freeways. International journal of traffic and transportation engineering
Vitenskapelig artikkel
Nordfjærn, Trond; Bjerkeset, Ottar; Bratberg, Grete Helen; Moylan, Steven; Berk, Michael; Gråwe, Rolf W.. (2014) Socio-demographic, lifestyle and psychological predictors of benzodiazepine and z-hypnotic use patterns. Nordic Journal of Psychiatry
Vitenskapelig artikkel
Nordfjærn, Trond; Simsekoglu, Özlem; Can, Seda; Somer, Oya. (2014) Social cognition and personality traits related to risky driving in a Turkish sample. Journal of Risk Research
Vitenskapelig artikkel
Nordfjærn, Trond; Simsekoglu, Özlem; Lind, Hans Brende; Jørgensen, Stig Halvard; Rundmo, Torbjørn. (2014) Transport priorities, risk perception and worry associated with mode use and preferences among Norwegian commuters. Accident Analysis and Prevention
Vitenskapelig artikkel
Nordfjærn, Trond; Rundmo, Torbjørn. (2014) Personality, risk cognitions and motivation related to demand of risk mitigation in transport among Norwegians. Safety Science
Vitenskapelig artikkel
Nordfjærn, Trond; Simsekoglu, Özlem; Rundmo, Torbjørn. (2014) The role of deliberate planning, car habit and resistance to change in public transportation mode use. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Nordfjærn, Trond; Simsekoglu, Özlem; Zavareh, Mohsen; Hezaveh, Amin; Mamdoohi, Amir; Rundmo, Torbjørn. (2014) Road traffic culture and personality traits related to traffic safety in Turkish and Iranian samples. Safety Science
Vitenskapelig artikkel
Thompson, Jason; Berk, Michael; O'Donnell, Meaghan; Stafford, Lesley; Nordfjærn, Trond. (2014) Attributions of responsibility and recovery within a no-fault insurance compensation system. Rehabilitation Psychology
Vitenskapelig artikkel
Nordfjærn, Trond; Simsekoglu, Özlem; Rundmo, Torbjørn. (2014) Culture related to road traffic safety: A comparison of eight countries using two conceptualizations of culture. Accident Analysis and Prevention
Vitenskapelig artikkel
Nordfjærn, Trond; Şimşekoğlu, Özlem. (2014) Empathy, conformity, and cultural factors related to aberrant driving behaviour in a sample of Urban Turkish drivers. Safety Science
Vitenskapelig artikkel
Mamdoohi, Amir; Zavareh, Mohsen; Hyden, Christer; Nordfjærn, Trond. (2014) A Comparative Analysis of Safety Performance Indicators Based on Inductive Loop Detector Data. Promet
Vitenskapelig artikkel
Thompson, Jason; O’Donnell, Meaghan; Stafford, Lesley; Nordfjærn, Trond; Berk, Michael. (2014) Association between attributions of responsibility for motor vehicle crashes, depressive symptoms, and return to work. Rehabilitation Psychology
Vitenskapelig artikkel
Bergly, Tone Helene; Nordfjærn, Trond; Hagen, Roger. (2013) The dimensional structure of SCL-90-R in a sample of patients with substance use disorder. Journal of Substance Use
Vitenskapelig artikkel
Nordfjærn, Trond; Bjerkeset, Ottar; Moylan, Steven; Berk, Michael; Gråwe, Rolf W.. (2013) Clusters of personality traits and psychological symptoms associated with later benzodiazepine prescriptions in the general population: The HUNT Cohort Study. Addictive Behaviours
Vitenskapelig artikkel
Rundmo, Torbjørn; Nordfjærn, Trond. (2013) Predictors of demand for risk mitigation in transport. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Nordfjærn, Trond. (2013) Prospective associations between benzodiazepine use and later life satisfaction, somatic pain and psychological health among the elderly. Human Psychopharmacology: Clinical and Experimental
Vitenskapelig artikkel
Simsekoglu, Özlem; Nordfjærn, Trond; Zavareh, Mohsen; Hezaveh, Amin; Mamdoohi, Amir; Rundmo, Torbjørn. (2013) Risk perceptions, fatalism and driver behaviors in Turkey and Iran. Safety Science
Vitenskapelig artikkel
Nordfjærn, Trond; Rundmo, Torbjørn. (2013) Road traffic safety beliefs and driver behaviour among personality subtypes of drivers in the Norwegian population. Traffic Injury Prevention
Vitenskapelig artikkel
Nordfjærn, Trond; Dahl, Hilde; Flemmen, Grete. (2013) Social influence, health variables, and criminal behaviours associated with substance use among rural Norwegian adolescents. Drugs: education prevention and policy
Vitenskapelig artikkel
Nordfjærn, Trond. (2013) Prevalence of substance use and mental distress among patients on waiting lists for substance use disorder treatment. Journal of Psychoactive Drugs
Vitenskapelig artikkel
Nordfjærn, Trond; Simsekoglu, Özlem. (2013) The Role of Cultural Factors and Attitudes for Pedestrian Behaviour in an Urban Turkish Sample. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel
Rundmo, Torbjørn; Nordfjærn, Trond; Roche-Cerasi, Isabelle. (2013) Objective and Perceived Risk Estimates of Travel Modes in the Norwegian Public. Human and Ecological Risk Assessment
Vitenskapelig artikkel
Nordfjærn, Trond; Jørgensen, Stig Halvard; Rundmo, Torbjørn. (2012) Cultural and Socio-Demographic Predictors of Car Accident Involvement in Norway, Ghana, Tanzania and Uganda. Safety Science
Vitenskapelig artikkel
Hassel, Anette; Nordfjærn, Trond; Hagen, Roger. (2012) Psychological and interpersonal distress among patients with substance use disorders: Are these factors associated with continued drug use and do they change during treatment?. Journal of Substance Use
Vitenskapelig artikkel
Nordfjærn, Trond. (2012) A population-based cohort study of anxiety, depression, sleep and alcohol outcomes among benzodiazepine and z-hypnotic users. Addictive Behaviours
Vitenskapelig artikkel
Simsekoglu, Özlem; Nordfjærn, Trond; Rundmo, Torbjørn. (2012) Traffic risk perception, road safety attitudes, and behaviors among road users: a comparison of Turkey and Norway. Journal of Risk Research
Vitenskapelig artikkel
Nordfjærn, Trond; Simsekoglu, Özlem; Rundmo, Torbjørn. (2012) A comparison of road traffic culture, risk assessment and speeding predictors between Norway and Turkey. Risk Management: An International Journal
Vitenskapelig artikkel
Moylan, Steven; Giorlando, Frank; Nordfjærn, Trond; Berk, Michael. (2012) The role of alprazolam for the treatment of panic disorder in Australia. Australian and New Zealand journal of psychiatry (Print)
Vitenskapelig artikkel
Nordfjærn, Trond; Jørgensen, Stig Halvard; Rundmo, Torbjørn. (2012) Safety attitudes, behaviour, anxiety and perceived control among professional and non-professional drivers. Journal of Risk Research
Vitenskapelig artikkel
Lund, Ingunn Olea; Nordfjærn, Trond; Rundmo, Torbjørn. (2012) Associations between risk judgments and demand for transport risk mitigation. Journal of Risk Research
Vitenskapelig artikkel
Nordfjærn, Trond; Flemmen, Grete; Dahl, Hilde. (2012) Psychosocial factors related to mental distress among Norwegian rural adolescents. International Journal of Mental Health Promotion
Vitenskapelig artikkel
Rundmo, Torbjørn; Nordfjærn, Trond; Iversen, Hilde Hestad; Oltedal, Sigve; Jørgensen, Stig Halvard. (2011) The role of risk perception and other risk-related judgements in transportation mode use. Safety Science
Vitenskapelig artikkel
Nordfjærn, Trond; Jørgensen, Stig Halvard; Rundmo, Torbjørn. (2011) A cross-cultural comparison of road traffic risk perceptions, attitudes towards traffic safety and driver behaviour. Journal of Risk Research
Vitenskapelig artikkel
Nordfjærn, Trond. (2011) Relapse patterns among patients with substance use disorders. Journal of Substance Use
Vitenskapelig artikkel
Nordfjærn, Trond. (2011) Do severity levels of substance use relate to self-reported variations in psychosocial distress?. Journal of Substance Use
Vitenskapelig artikkel
Nordfjærn, Trond; Rundmo, Torbjørn; Hole, R.. (2010) Treatment and recovery as perceived by patients with substance addiction. Journal of Psychiatric and Mental Health Nursing
Vitenskapelig artikkel
Nordfjærn, Trond; Rundmo, Torbjørn. (2010) Differences in risk perception, priorities, worry and demand for risk mitigation related to transport among Norwegians in 2004 and 2008. Safety Science
Vitenskapelig artikkel
Nordfjærn, Trond; Jørgensen, Stig Halvard; Rundmo, Torbjørn. (2010) An investigation of driver attitudes and behaviour in rural and urban areas in Norway. Safety Science
Vitenskapelig artikkel
Nordfjærn, Trond; Hole, Reidar; Rundmo, Torbjørn. (2010) Interrelations between Patients' Personal Life Events, Psychosocial distress and Substance Use. Substance Use & Misuse
Vitenskapelig artikkel
Nordfjærn, Trond; Rundmo, Torbjørn. (2009) Perceptions of traffic risk in an industrialised and a developing country. Transportation Research Part F: Traffic Psychology and Behaviour
Vitenskapelig artikkel

Del av bok/rapport

Eitrheim, Maren Helene Rø; Log, Markus Metallinos; Tørset, Trude; Nordfjærn, Trond; Levin, Tomas. (2023) Driver Acceptance of Truck Platooning: State-of-the-Art and Insights from a Field Trial on Rural Roads.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Eitrheim, Maren Helene Rø; Log, Markus Metallinos; Tørset, Trude; Levin, Tomas; Nordfjærn, Trond. (2022) Driver Workload in Truck Platooning: Insights from an On-Road Pilot Study on Rural Roads.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Nordfjærn, Trond; Kummeneje, An-Margritt S; Zavareh, Mohsen; Mehdizadeh, Milad; Rundmo, Torbjørn. (2021) Risk Perception in Transport: A Review of the State of the Art.
Faglig kapittel
Rundmo, Torbjørn; Kummeneje, An-Magritt; Nordfjærn, Trond. (2018) Perception of security and use of public travel modes in an urban Norwegian public.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Rundmo, Torbjørn; Nordfjærn, Trond; Roche-Cerasi, Isabelle. (2011) Objective and perceived travel mode risk.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Jørgensen, Stig Halvard; Nordfjærn, Trond; Rundmo, Torbjørn. (2009) Does Place of Residence Matter in Risk Judgement and Attitudes towards Mode of Transportation?.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

Rapport

Støver, Morten; Bratberg, Grete Helen; Nordfjærn, Trond; Krokstad, Steinar. (2012) Bruk av alkohol og medikamenter blant eldre (60+) i Norge. HUNT Forskningssenter, NTNU HUNT Forskningssenter, NTNU
Rapport
Nordfjærn, Trond. (2011) Patients with Substance Use Disorders An investigation of Relapse, Substance Use and Recovery. Norges teknisk-naturvitenskapelige universitet Doktoravhandlinger ved NTNU, 1503-8181 (2011:166)
Doktorgradsavhandling
Nordfjærn, Trond. (2011) Risk Judgements, Attitudes and Behaviour in Transport: Temporal, Geographical and Cultural Differences. Norges teknisk-naturvitenskapelige universitet Doktoravhandlinger ved NTNU, 1503-8181 (2011:214)
Doktorgradsavhandling
Nordfjærn, Trond. (2006) Perceived risk in an industrialized and a developing country : an examination of risk perception in Norway and Ghana. Norwegian university of science and technology Norwegian university of science and technology
Mastergradsoppgave

Formidling