The operational layer controls also variable speed signs, lane closing symbols and variable message signs.
业务层还控制着可变速度标识，车道结束标志和许多可变信息标志。
Flashing amber lights and variable message signs on the Shenzhen Bay Bridge and approach roads will be activated to alert motorists on strong wind conditions.
沿深圳湾公路大桥及附近道路的黄色灯号及可变讯息标志将会启动，以提醒驾驶人士小心强风。
The case-based reasoning is introduced into information issuing strategy of variable message signs, solving the current information issuing problem by using the former case experience.
将案例推理技术引入到快速路上可变信息牌的信息发布策略中，利用以往具体案例的经验来解决当前新的信息发布问题。
The case-based reasoning is introduced into information issuing strategy of variable message signs, solving the current information issuing problem by using the former case experience.
将案例推理技术引入到快速路上可变信息牌的信息发布策略中，利用以往具体案例的经验来解决当前新的信息发布问题。
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