Enhanching in Vehicle Digital Mapsvia GPS Crowdsourcing

[摘要] In this paper, we propose a simple and effective method to extend digital maps with the location and timing of stop-signs and traffic lights in a city, given GPS traces collected by on-road vehicles. Our system finds the location and timing oftraffic lights and stop-signs usinga small number of traces per road segment. We developed and evaluated the system by applying it to two sets of GPS traces ---Open Street Map, a multi-city, publicly available database of GPS traces, and a set of traces collected in west Los Angeles. Evaluation results show that our system can estimate the location/type of stop-signs with as little as 5 traversal per road segmentand the location/timing of traffic lights with as little as 7 traversals, with more than 90% accuracy.

[发布机构] UCLA Henry Samueli School of Engineering and Applied Science

[学科分类] 计算机科学（综合）