Olyckstypsklassificering: jämförelser i tid och rum

Jörgen Larsson

On behalf of the Swedish Institute for Transport and Communications Analysis SIKA, VTI has written a historic account of accident type classification in Sweden, and made a review of international recommendations and of the way in which a number of neighbouring countries perform their accident type classification. The retrospective review in Sweden extends to 1966 when the Swedish Council on Road Safety Research drew up a classification system. It was based on the situations and manoeuvres that preceded the accident and was thus a causal system. The system was however more detailed than the accident types which were presented in the official statistics. Over the years, minor changes were made to the accident types, certain events or conflicts were assigned to different accident types, as in the case of e.g. U turns, and accidents involving wildlife were made a separate accident type. Over many years, accident type classification was carried on by both the Swedish National Road Administration (VV) and Statistics Sweden SCB, but after 1994, when VV took charge of accident classification for the entire Swedish road network, the police in 1997 stopped direct reporting to SCB of road traffic accidents involving personal injury. VV was thus the only body that was responsible for accident type classification, and for some there had been a progressive increase in the automatic classification of accidents. When STRADA (Swedish Traffic Accident Data Acquisition) was introduced in 2003, accident types were given a consequence orientation (the way damage and/or injuries occurred). A few new accident types were introduced, but the names of the previous types were retained in spite of the fact that they no longer describe the same things as before.



Shipping and the environment – research meets reality

Centre for Transport Studies (CTS) in co-operation with Ports of Stockholm invite you to the seminar Shipping and the environment – research meets reality.




The five-year anniversary of European Road Profile Users' Group (ERPUG) Forum will take place at Ramboll head quarter, Copenhagen, Denmark October 19-20, 2017.


Self-driving buses in Sweden next year?

A self-driving, fossil-free bus. This idea might become reality through a forthcoming collaborative project involving the Swedish National Road and Transport Research Institute (VTI), Linköping University and several other participants. The project group aim...


New climate-proof solutions for hard surfaces in cities

High-density road infrastructure that emphasise maximum durability and minimum maintenance create inflexible systems, which put increased stress on urban trees and lead to increased risk for flooding. Over the past five years, the ‘Climate-proof solutions for...


VTI is preparing for automated vehicles

Automation of traffic systems will lead to major changes. The European Union’s (EU) CoEXist research project began in June 2017 with the aim of preparing cities and road operators for the introduction of self-driving vehicles. The Swedish National Road and...


Vehicle Driver Monitoring: sleepiness and cognitive load

To prevent road crashes it is important to understand driver related contributing factors, which have been suggested to be the critical reason in 94 per cent of crashes. The overall aim of the project Vehicle Driver Monitoring has been to advance the...


Tomas Svensson new director-general

Tomas Svensson was today appointed Director-General of VTI. Tomas has been acting Director-General since January 2017.