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Cost-effective planning and abatement costs of battery electric passenger vessel services
(Journal article; Peer reviewed, 2022-11-02)This paper analyzes the energy replacement potential for high-speed passenger vessels. Emphasis is on whether better planning of services can mitigate technical and economic barriers to zero emission transport. A novel ... -
How Can Authorities Support Distributed Improvisation During Major Crises? A Study of Decision Bottlenecks Arising During Local COVID-19 Vaccine Roll-Out
(Journal article; Peer reviewed, 2022-11-11)Despite the increased importance attributed to distributed improvisation in major crises, few studies investigate how central authorities can promote a harmonic, coordinated national response while allowing for distributed ... -
Interact or counteract? Behavioural observation of interactions between vulnerable road users and autonomous shuttles in Oslo, Norway
(Journal article; Peer reviewed, 2022-08-03)The current paper presents the results of behavioural observations in a field experiment with automated shuttles in Oslo, Norway. Video observations were conducted at five fixed locations along a challenging 1.2 km automated ... -
The role of values in road safety culture: Examining the relationship between valuation of freedom to take risk and accident risk among motorcycle riders and car drivers
(Journal article; Peer reviewed, 2022-08-26)Focus on paternalistic values versus individual freedom is a fundamental theme, which defines the status of road safety in different settings. The present study examines the role of values related to freedom to take risk ... -
Life cycle assessment of battery electric buses + Errata of 24. January 2023
(Journal article; Peer reviewed, 2022-10-27)Different Li-ion battery technologies and sizes are used in battery electric buses (BEBs), but little is known about the environmental effect of various battery technology and sizing alternatives. In a cradle-to-grave life ... -
Do we know why the number of traffic fatalities is declining? If not, can we find out?
(Journal article; Peer reviewed, 2022-06-07)The number of traffic fatalities has declined by 80-90 % from the all-time peak number in many highly motorized countries. It would be of great interest to identify factors that explain this decline. Unfortunately, this ... -
Capacity reduction on urban main roads: How truck drivers adapted, and what effects and consequences they experienced
(Journal article; Peer reviewed, 2022-11-03)Urban freight transport is an important issue in sustainable mobility discussions. It constitutes a significant proportion of urban traffic, and expected negative impacts for urban freight transport can be arguments against ... -
Driver mileage and accident involvement: A synthesis of evidence
(Journal article; Peer reviewed, 2022-11-14)The relationship between driver mileage and accident involvement has been a controversial topic for at least 20 years. The key issue is whether driver accident involvement rate increases in proportion to miles driven or ... -
Floating offshore wind and the real options to relocate
(Journal article; Peer reviewed, 2022-11-17)Real options to relocate may improve the profitability of the floating offshore wind industry. Location and market switching can contribute to mitigating parts of the cost disadvantage of floating versus fixed-bottom ... -
The geography of public transport competitiveness in thirteen medium sized cities
(Journal article; Peer reviewed, 2022-05-09)Securing sufficient accessibility with public transport is essential for reducing private car commuting. While most studies of transport accessibility are based on travel times, other quality factors such as the perceived ... -
External communication of automated shuttles: Results, experiences, and lessons learned from three European long-term research projects
(Journal article; Peer reviewed, 2022-10-26)Automated shuttles are already seeing deployment in many places across the world and have the potential to transform public mobility to be safer and more accessible. During the current transition phase from fully manual ... -
Modelling the interaction between the energy system and road freight in Norway
(Journal article; Peer reviewed, 2022-12-21)By soft-linking models for transport demand, vehicle turnover and energy generation and use, we show how such models can complement each other and become more relevant and reliable policy support tools. A freight demand ... -
Use of GPS-data to improve transport solutions in a cost and environmental perspective
(Journal article; Peer reviewed, 2022-02-11)In this paper we have utilised GPS data as a base to track truck movements and analyse transport activities. Combined with a Decision Support Tool we have investigated how different transport solutions affect the transport ... -
The effect of neighbourhood and urban center structures on active travel in small cities
(Journal article; Peer reviewed, 2022-10-31)Densification is the key intervention strategy proposed in the urban sustainability planning literature. Nevertheless, the blueprint for action is still vague, and especially so in small cities. Is, for example, the premise ... -
COVID-19 disruptions and Norwegian food and pharmaceutical supply chains: Insights into supply chain risk management, resilience, and reliability
(Journal article; Peer reviewed, 2022-12-08)The purpose of this study is to investigate how the COVID-19 crisis affected delivery security and firms’ preparedness and responses in Norway. Investigations focus on supply chains which were critical for maintaining the ... -
The limits of soft safety regulation: Does successful work with safety culture require SMS implementation?
(Journal article; Peer reviewed, 2022-12-06)The Swedish Transport Agency defined contributing to a high safety culture in transport companies as a key element in its regulatory strategy. This study examines how the safety culture strategy was received and enacted ... -
Pandemic impacts on public transport safety and stress perceptions in Nordic cities
(Journal article; Peer reviewed, 2022-12-22)COVID-19 has brought severe disruption and demand suppression to mobility, especially to public transport (PT). A key challenge now is to restore trust that PT is safe again. This paper investigates pandemic impacts on PT ... -
Factors contributing to the decline in the number of heavy goods vehicles involved in injury accidents in Norway from 2007 to 2020
(Peer reviewed; Journal article, 2022-12-14)There has been a large decline in the number of police reported injury accidents on public roads in Norway after 2007. The decline has been particularly large for accidents involving heavy goods vehicles. From 2007 to 2020, ... -
Changes over time in the relationship between road accidents and factors influencing them: The case of Norway
(Journal article; Peer reviewed, 2023-01-30)This paper compares the results found in successive accident prediction models developed at the national level for Norway. Over time, the models have become more comprehensive in terms of the roads and the variables included ... -
Quantification of temperature dependence of NOx emissions from road traffic in Norway using air quality modelling and monitoring data
(Journal article; Peer reviewed, 2022-03-05)Emissions of nitrogen oxides (NOx) from road traffic are dependent on a range of factors including vehicle type, speed, driving patterns and engine temperature. Recently a number of studies have indicated that ambient air ...