During the last decade, several Public Transportation Operators have started to test and implement technical equipment that shall detect passengers or objects intruding the clearance profile of trains in the station area. The deployed or tested systems typically supervise the track area of subways or light rails and shall stop incoming trains if an obstacle has been detected on the tracks (Guideway Intrusion Detection System, GIDS).
While some scientific and operational publications can be found in the literature for Onboard Obstacle Detection Systems and on different technical solutions for Guideway Intrusion in general, there are virtually none on planning and operations experience for Wayside GIDS in transit applications.
The paper therefore reports on the basic intention and operation of (wayside) GIDS in Unmanned and Driver Operations and findings about detection efficiency and feasibility. Some critical issues had been observed in most implementations and will be discussed in this overview paper.
TelSys GmbH has been working with researchers from TU Dresden on Video GIDS Technology in multiple installations, accumulated substantial statistics of GIDS behavior in diverse field demonstrators (Prague, Berlin, New York City, Munich) and assessed the operational results of GIDS technologies over the years. The Video GIDS is therefore introduced as an illustration example, while the considered aspects are applicable to all GIDS Technologies.