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上海现自控式红绿灯 按下20秒即可通行 - IT 与交通 - cnBeta.COM
source link: https://www.cnbeta.com/articles/tech/1026147.htm
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你过马路的时候是不是很遵守交通规则呢，除了跟素质有关外，更多的还是要为自身安全着想。近日，有网友发现，上海的红绿等进行了升级，其变得非常的智能，从一定程度上，让行人减去了穿红灯的必要，这倒是什么样的红绿灯？
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