Road Accident Risk Models: The Use Of SafeNET
In Thessaloniki
Author(s)
S. Basbas
Abstract
The development of mathematical models in order to relate the number of
accidents with the geometrical and functional characteristics of road networks is
always an important issue in road safety. The first attempts started in the early
50s and since then a lot of research has been made towards this direction. As a
result a number of tools have been developed worldwide. The Transport
Research Laboratory (TRL) developed the SafeNET software package, which
allows estimates to be made of the number of personal injury accidents per year
for particular elements of a road network. Within the framework of this paper the
results from the use of the SafeNET software package in the central area of the
city of Thessaloniki are presented. The network consists of four links and four
nodes. SafeNET has proved to be a very useful tool to assist the work of traffic
engineers.
Keywords: road accident, risk models, SafeNET.
1 Introduction
The problem of how to select junctions or road sections in order to take measures
for the improvement of road safety level has to do with the accident data
availability, and more especially with the knowledge of the accidents, which
would occur in the case where no measures are implemented. One way to deal
with this problem is to take into account for the estimations the historical data
(e.g., road accidents which took place during the last 3 to 5 years) but there is
always the question of reliability due to regression-to-mean (RTM), due to trend
effects etc. The use of Empirical Bayes (EB) approach appears to provide very
Keywords
road accident, risk models, SafeNET.
Related Book
Other papers in this volume
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