Automatic vehicle location and bus priority : the London system.

This paper describes how automatic vehicle location (AVL) and urban traffic signal control (UTC) systems are being integrated in London to provide bus priority. Alternative architectures for integrating AVL and UTC systems for bus priority are discussed, with reference to operational systems in France, Italy and the United Kingdom. Summary results of a study illustrating the potential benefits of providing different levels of priority according to adherence to schedule are presented. The paper concludes with an outline of the implementation of AVL/UTC in London and the evaluation of it within the European Commission DGVII project INCOME. (A)