The main objective of PROMPT field trials is to demonstrate and evaluate strategies for giving active priority to public transport vehicles in real-time adaptive urban traffic control (UTC) systems. Field trials have been conducted in the context of four test sites located in London, Southampton, Turin and Gothenburg. The priority systems installed in these cities are different and can actuate different kinds of priority strategies. However, field trials are conducted in a common framework for systems evaluation (measures of performance, experimental design, cost/benefit, etc.) which allows results not only to refer to the individual installations in each of the three cities but also to be drawn together on a comparable basis. The paper describes the results of the work carried out in each city, including field trials and results of the evaluations. (A)
Abstract