On one hand, passenger vehicles by personnel department conducted extensive propaganda to inform, on the other hand, each passenger safety situation analysis, the road traffic safety knowledge.
一方面对客运车辆司乘人员进行广泛的宣传告知，另一方面深入到各客运公司，认真分析安全形势，宣传道路交通安全知识。
So, the timing signal should be set cautiously with the aid of other measures such as adjusting the interval duration, propaganda of traffic safety and rules.
因而应谨慎采用机动车交通信号灯倒计时装置，并应辅以绿灯间隔时间调整、交通安全宣传教育和明确交通规则等措施。
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