Lane Assist Systems for Bus Rapid Transit, Volume III: Interface Requirements

This report describes research focused on specifying Vehicle Assist and Automation (VAA) interface requirements for transit vehicles. The objective is to facilitate the development and deployment of VAA systems on transit vehicles in the U.S. VAA systems enable transit vehicles to achieve lane assist, precision docking and longitudinal control. They offer the opportunities of providing high quality transit service within reduced lane widths. Transit vehicles in North America are primarily manufactured based on individual transit agencies’ customized requirements. The interfaces between VAA components and the mechanical, electrical and electronic systems on the existing transit vehicle, if not defined properly, can be an impediment to large scale deployment of VAA technologies.