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交通量、车速及交通密度三者有何关系,从中能得到什么结论?

问答题
2022-04-02 13:15
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正确答案
交通量、车速及交通密度之间有以下规律:1)当密度很小时,交通量亦小,而车速很高;2)随着交通密度逐渐增大,交通量逐渐增加,而车速降低,当达到临界车速时,交通量最大;3)当密度增大至超过最佳密度时,交通开始拥挤,交通量和车速都降低,当密度达到最大时,交通量和车速降为零,此时产生了交通堵塞。由上得到:速度和容量(密度)不可兼得,因此对于不同功能要求的道路设施在交通组织管理上有不同的处理。

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