Blar i TØI Vitenarkiv på forfatter "Sagberg, Fridulv"
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A Review of Research on Driving Styles and Road Safety
Sagberg, Fridulv; Selpi, Selpi; Piccinini, Giulio Francesco Bianchi; Engström, Johan (Journal article; Peer reviewed, 2015-06-30)Objective: The aim of this study was to outline a conceptual framework for understanding driving style and, on this basis, review the state-of-the-art research on driving styles in relation to road safety. Background: ... -
An analysis of factors influencing accidents on road bridges in Norway
Elvik, Rune; Sagberg, Fridulv; Langeland, Per Andreas (Journal article; Peer reviewed, 2019-05-09)Factors explaining systematic variation in the number of injury accidents on road bridges in Norway during 2010–2016 have been identified by means of negative binomial regression models. A total of 6824 bridges recording ... -
Characteristics of fatal road crashes involving unlicensed drivers or riders: Implications for countermeasures
Sagberg, Fridulv (Journal article; Peer reviewed, 2018-05-05)Drivers or riders without a valid license are involved in 10% of fatal road crashes in Norway. This was shown by an analysis of data from all fatal crashes in the period 2005–2014. A literature review shows that unlicensed ... -
Combining roadside interviews and on-road observation for assessing prevalence of driver inattention
Sagberg, Fridulv; Johansson, Ole; Sundfør, Hanne Beate (Journal article; Peer reviewed, 2019-02-05)Inattention among car drivers on a motorway section with two lanes in each direction was investigated by a combination of two different methodological approaches. First, an observer in a driving car in the non-passing ... -
Competence, equipment and behavioural adaptation on Norwegian winter roads: A comparison of foreign and Norwegian HGV drivers
Nævestad, Tor-Olav; Sagberg, Fridulv; Levlin, Gunhild Meyer; Bjørnskau, Torkel (Peer reviewed; Journal article, 2021-02-03)There seems to be a widespread view that foreign lorry drivers’ lack of competence on Norwegian roads, especially related to winter driving, is a significant safety problem. It has, however, been suggested that foreign heavy ... -
Crash risk on entrance versus exit zones of road bridges in Norway
Sagberg, Fridulv; Elvik, Rune; Langeland, Per Andreas (Peer reviewed; Journal article, 2019-08-09)Using data from the national register of police-reported crashes and from the bridge register of the Norwegian Public Roads Administration, we estimated rates of single-vehicle crashes on road sections adjacent to road ... -
Effects of a penalty point system on traffic violations
Sagberg, Fridulv; Ingebrigtsen, Rikke (Journal article; Peer reviewed, 2017-11-06)We analysed data from the Norwegian driver’s licence penalty point register over a three-year period, in order to investigate whether the number of incurred penalty points in a given time period can predict the probability ... -
Effects of roadwork characteristics and drivers? individual differences on speed preferences in a rural work zone
Steinbakk, Renata Torquato; Ulleberg, Pål; Sagberg, Fridulv; Fostervold, Knut Inge (Journal article; Peer reviewed, 2019-09-14)Work zone safety from a psychological perspective has received little attention in scientific literature. Therefore, the present study aims to explore the influence of roadwork characteristics and drivers’ individual ... -
Factors contributing to the decline in the number of heavy goods vehicles involved in injury accidents in Norway from 2007 to 2020
Elvik, Rune; Nævestad, Tor-Olav; Sagberg, Fridulv; Hesjevoll, Ingeborg Storesund; Hovi, Inger Beate (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, ... -
Inattention and distraction in fatal road crashes - Results from in-depth crash investigations in Norway
Sundfør, Hanne Beate; Sagberg, Fridulv; Høye, Alena (Journal article; Peer reviewed, 2019-02-11)Distraction and inattention pose a considerable threat to road safety, not only for car drivers, but also for vulnerable road users. Previous studies show that inattention and distraction are more often contributing factors ... -
Self-reported deterrence effects of the Norwegian driver's licence penalty point system
Sagberg, Fridulv; Sundfør, Hanne Beate (Journal article; Peer reviewed, 2019-02-05)Norway’s penalty point system implies that traffic infractions are penalised with two or three points for full-licence drivers and four or six points for probationary-licence drivers, and when a total of eight points is ... -
Speed preferences in work zones: the combined effect of visible roadwork activity, personality traits, attitudes, risk perception and driving style
Steinbakk, Renata Torquato; Ulleberg, Pål; Sagberg, Fridulv; Fostervold, Knut Inge (Peer reviewed; Journal article, 2019)