本程序实现了如何开发监控系统，以及附带了一实时城市道路监控系统实例. -This program implements how to develop monitoring systems, and comes with an example of real-time monitoring system of urban road.

这是一个我们日常交通道路上的简单的交通灯程序-This is a simple traffic light program on a daily traffic road

上传内容包括北京道路系统的shapefiles图层，详细到乡镇，可供arcgis使用-The upload includes the shapefiles layer of the Beijing road system, detailed to the township, available for arcgis