This paper will describe the development of a new micro-computer based road traffic databank system for the Government of Malaysia. It will outline how the authors were involved in a preliminary investigation to identify the needs for traffic data recording and analysis and the principles adopted in constructing the databank. The paper will then describe the final system, (known as SYSTEM BST) and its potential in other developing countries.

The main purpose of SYSTEM BST is to allow road traffic data to be recorded, analysed and consolidated into a central traffic information system for use by authorities involved in planning country-wide improvements to a road network. The system allows regular bi-annual traffic census data or continuous census data to be entered, analysed and summary traffic data (particularly 16, 24 and peak hour vehicle flows by each vehicle class) to be assigned to an inventory of road sections. Similarly, road traffic accident data, vehicle spot speeds and axle loads may be assigned to road sections. Survey data for each road section may then be used to calculate ultimate capacities and current levels of service and traffic growth may be extrapolated to predict the year in which capacity will be reached. Similarly, an analysis of accident data allows accident blackspots to be identified and ranked according to severity.

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