The main function of I-VTS is to improve ocean traffic circumstance so as to guarantee the safety of vessel navigation, increase shipping efficiency and protect the ocean environment.
其主要功能是改善海上交通环境，从而保障船舶航行的安全、提高航运效率、保护海洋环境。
These measures can be utilized by transportation department to decrease traffic accidents and exalt safety function at the long downhill road sections.
道路管理部门可以合理运用这些措施，减少交通事故，提高连续下坡路段的安全性能。
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