Related Experiment Video
Updated: Sep 29, 2026

Determination of the Friction Coefficients of Icy Pavements Under Different Amounts of Snowfall
Published on: January 6, 2023
The effect on accidents of technical inspections of heavy vehicles in Norway
1Institute of Transport Economics, Oslo, Norway. rune.elvik@toi.no
Abstract:
This paper presents a study of the effects on accidents of technical inspections of heavy vehicles (trucks and buses) in Norway. Multiple regression analysis is applied in order to estimate the effects of technical inspections, controlling for annual trend in accident rate, the number of new drivers and annual economic growth. It is found that abolishing inspections may result in an increase of 5-10% in the number of heavy vehicles involved in injury accidents; increasing the number of inspections by 100% is associated with a similar reduction in the number of accidents. These results are not statistically significant and highly uncertain. The study clearly illustrates many of the difficulties often encountered in non-experimental accident research.
Related Concept Videos
Friction: Problem Solving
Initially, a visual representation of the...
Design Consideration
The factor of safety is another key aspect...

