交通流参数检测作为智能运输系统的一个重要研究方向，对高速公路监控、管理以及政策研究、道路设计具有重要的意义。
As an important research direction of ITS, traffic flow parameters detection has great significance on the highway monitoring, management, policy studies and road design.
在恶劣天气等能见度低的情况下，本设计能够对前方道路状况进行实时监控，发现并检测可能存在危险的障碍物，并将结果给司机进行提示。
This could give the driver alarm after instant detecting the front road's status and finding the possible dangerous obstacle. This design's structure and cost is simple and low.
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