Trond Nordfjærn

ORCID: 0000-0002-9436-6446
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About
Contact & Profiles
Research Areas
  • Traffic and Road Safety
  • Urban Transport and Accessibility
  • Substance Abuse Treatment and Outcomes
  • Behavioral Health and Interventions
  • Occupational Health and Safety Research
  • Safety Warnings and Signage
  • Environmental Education and Sustainability
  • Mental Health Treatment and Access
  • Risk Perception and Management
  • Injury Epidemiology and Prevention
  • Transportation Planning and Optimization
  • Risk and Safety Analysis
  • Schizophrenia research and treatment
  • Human-Automation Interaction and Safety
  • Transportation and Mobility Innovations
  • Opioid Use Disorder Treatment
  • Homelessness and Social Issues
  • Mental Health and Patient Involvement
  • Child and Adolescent Psychosocial and Emotional Development
  • Sleep and related disorders
  • Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
  • Sleep and Work-Related Fatigue
  • Youth Substance Use and School Attendance
  • Economic and Environmental Valuation
  • COVID-19 and Mental Health

Norwegian University of Science and Technology
2015-2024

St Olav's University Hospital
2017-2024

NTNU Samfunnsforskning
2015-2023

Institute for Energy Technology
2023

Norwegian Public Roads Administration
2023

Norwegian Institute of Public Health
2016-2017

Gediz University
2012-2016

Norwegian Environment Agency
2014-2016

Central Norway Regional Health Authority
2009-2013

The main aim was to investigate the relative roles of mental distress and intrinsic motivation for relapse after inpatient substance use disorder (SUD) treatment, while adjusting demographics treatment variables.The study is based on a prospective multicenter with baseline gross sample 607 patients SUD (response rate = 84%) admitted an stay at one five specialized centers in Norway. analytical consisted illicit drug (n 374) who took part follow-up interview three months discharge from 249)...

10.1016/j.addbeh.2018.11.008 article EN cc-by-nc-nd Addictive Behaviors 2018-11-11

The present study investigated cross‐cultural differences in road traffic risk perception, sensitivity and willingness Norway, Russia, India, Ghana, Tanzania Uganda. Differences driver attitudes behaviour were also examined. An additional aim was to test whether the constructs explained variation risky these countries. To obtain aims, a questionnaire survey conducted among randomly obtained representative sample of Norwegian public (n = 247). Stratified samples established Russia 245), India...

10.1080/13669877.2010.547259 article EN Journal of Risk Research 2011-06-01

Dropout from inpatient treatment for substance use disorder (SUD) is an ongoing challenge. The aim of this study was to identify demographic, use, and psychological factors that predict dropout postdetoxification SUD treatment.A total 454 patients 5 centers in Central Norway were consecutively included naturalistic, prospective cohort study.A 132 (28%) did not complete the planned stay (dropped out). Cox regression analysis showed higher levels intrinsic motivation changing personal reduced...

10.1177/1178221818760551 article EN cc-by-nc Substance Abuse Research and Treatment 2018-01-01

Promoting bicycling has several health benefits at the individual- and population-level. However, safety concerns for bicyclists is one of main hindrances bicycling. Little work explored aberrant riding behavior, to best our knowledge, no instrument that measures behavior among been reported in literature. This study reports psychometric properties a newly designed measurement instrument, Bicycle Rider Behavior Questionnaire (BRBQ) follows methodological approaches motorized vehicle user...

10.1016/j.jth.2017.11.003 article EN cc-by-nc-nd Journal of Transport & Health 2017-12-29

10.1016/j.trf.2008.08.003 article EN Transportation Research Part F Traffic Psychology and Behaviour 2008-10-08

Abstract The present study aims to investigate differences in road safety attitudes, driver behavior, and traffic risk perception between Turkey Norway. A questionnaire survey was conducted among a sample of Norwegian (n = 247) Turkish 213) users. results show that respondents perceived be higher than respondents. reported safer attitudes towards drinking driving respondents, while Norwegians speeding. lower frequency speeding behaviors whereas driving. Traffic related but not were discussed...

10.1080/13669877.2012.657221 article EN Journal of Risk Research 2012-01-31

10.1016/j.trf.2013.09.015 article EN Transportation Research Part F Traffic Psychology and Behaviour 2013-10-18

Objective: The aim of this study was to investigate the relative role religiosity for alcohol abstention and consumption levels among individuals aged 40 years or above. Method: A two-wave prospective survey conducted Norwegians 80 (Time 1 in 2002/2003, Time 2 2007/2008). analytical sample constituted those who responded questionnaire at both time points (n = 2671). Results: findings showed that religiousity strongly associated with less while adjusting demographics health variables. results...

10.1080/10826084.2018.1473431 article EN Substance Use & Misuse 2018-06-29

10.1016/j.ssci.2016.12.014 article EN Safety Science 2016-12-30

Although several previous studies have focused on pedestrian safety, most of the urban roads. This study investigated accident data among 1358 pedestrians from 2012 to 2018 urban, suburban, and rural roads in 16 cities Gilan province Iran using structural equation modelling (SEM). Factor analysis showed that four exogenous latent variables had a significant relationship with fatal accidents pedestrians. Factors related (coefficient: 0.968), vehicles 0.632), humans 0.306), environment 0.194)...

10.1080/17457300.2020.1835991 article EN International Journal of Injury Control and Safety Promotion 2020-11-24

Electric vehicles (EVs) can play an ancillary role in energy and electricity system management. Vehicle-to-Grid (V2G) technology allows EV batteries to be discharged back into the grid. This enables charging when prices are low there is abundance of grid discharging costs high load The current study estimates combination financial compensation (FC) incentives (reduction monthly bill) minimum guaranteed charge (MC) that would needed increase acceptance V2G among Norwegians. Estimating a...

10.1016/j.enpol.2023.113649 article EN cc-by Energy Policy 2023-06-12
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