The Tri-County Metropolitan Transportation District of Oregon (TriMet) designed and implemented the Transit Tracker (Regional Intermodal Transit Traveler Information and Security Systems) project in May of 2000. The Transit Tracker is a real-time bus arrival estimation system that provides information to riders at bus stops and light rail stations using a count down system. The system provides information in minutes to the arrival time of the next bus and the actual arrival time of the next train. The overall objective of the Transit Tracker project was to provide a seamless regional multimodal traveler information system for the Portland area public transportation system that will result in providing accurate and timely information and enhanced public transportation security.
The Transit Tracker project was deployed in three phases. Phase 1 deployed a prototype system implementing LED electronic display signs at three locations representing different types of transit facilities. Accuracy testing was also included in Phase 1. Phase 2 consisted of the evaluation of the Phase 1 prototype and the deployment of some additional displays. Phase 3 completed the deployment installing the remaining LED sign displays, expanding the display content and presentation, and implementing additional modifications resulting from the Phase 2 evaluation.
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