1. Modelling the effects of road traffic safety measures
- Author
-
Meng Lu Lu
- Subjects
Risk analysis ,Engineering ,Automobile Driving ,Index (economics) ,Process (engineering) ,Poison control ,ComputingMilieux_LEGALASPECTSOFCOMPUTING ,Human Factors and Ergonomics ,Advanced driver assistance systems ,Infrastructure Engineering ,Risk Assessment ,Occupational safety and health ,Transport engineering ,Risk Factors ,Econometrics ,Humans ,Safety, Risk, Reliability and Quality ,Probability ,Models, Statistical ,Mathematical model ,business.industry ,Road traffic safety ,Public Health, Environmental and Occupational Health ,Accidents, Traffic ,Safety ,business - Abstract
A model is presented for assessing the effects of traffic safety measures, based on a breakdown of the process in underlying components of traffic safety (risk and consequence), and five (speed and conflict related) variables that influence these components, and are influenced by traffic safety measures. The relationships between measures, variables and components are modelled as coefficients. The focus is on probabilities rather than historical statistics, although in practice statistics may be needed to find values for the coefficients. The model may in general contribute to improve insight in the mechanisms between traffic safety measures and their safety effects. More specifically it allows comparative analysis of different types of measures by defining an effectiveness index, based on the coefficients. This index can be used to estimate absolute effects of advanced driver assistance systems (ADAS) related measures from absolute effects of substitutional (in terms of safety effects) infrastructure measures.
- Published
- 2005