Secondly, the paper discusses the main functions of the temporary road system, advances the feasibility and necessity of optimum design.

其次论述临时路面系统的主要功能，提出优化设计的可行性和必要性。

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Together these technologies create a system that provides immediate warnings of delays, accidents, temporary speed restrictions and road conditions -- the everyday hazards that lie in wait just around the corner.

CNN: Behold the?all-seeing, self-parking, safety-enforcing, networked car