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。

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.

youdao

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。

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.

youdao