介绍了基于MPEG - 4压缩技术、SDH光纤传输技术和大容量硬盘存储技术的电视监控系统在城市轨道交通中的应用问题。
Introduces the issues on application of CCTV system based on the MPEG-4 compression, SDH optical transmission and large capacity hard disc storage technologies in urban rail transportation.
另一方面，以轨道交通为主的大容量快速客运体系尚未形成，因此道路交通的阶段性和结构性矛盾仍十分突出。
On the other hand, to track traffic on the high-capacity rapid passenger system has yet to take shape, road traffic phased and structural contradictions are still very conspicuous.
城市轨道交通作为一种大容量、快速、准时的交通运输方式，不但缓解了城市交通的压力，还促进了整个大都市区结构的形成。
Because of its big capacity, speed, and punctuality, the railway not only relieves the stress of urban traffic, but also pushes the formation of the whole big metropolis structure.
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