基于交通方式出行距离需求的网格状城市道路级配

从供需平衡的角度出发,以满足城市各种交通方式对不同道路资源的需求为目标,对城市道路网级配进行了研究.根据各等级道路功能的区别,讨论了基于路网交叉口等级的可能出行顺序,推导了不同出行顺序下各等级道路上各交通方式的适宜出行距离;以各等级道路上的交通周转量作为交通需求,通行能力作为交通供给,进而在满足各交通方式供需平衡的基础上,得到各等级道路的需求长度.以某城市为例进行了验证,结果表明,使用该方法能得到合理的道路级配比例.

Grade Proportion of Grid Urban Road Based on Travel Distance of Traffic Modes

To satisfy the demand of different traffic modes to different grade roads,the urban road grade proportion is researched based on the equilibrium between the supply and the demand.The travel sequence related to across grade is discussed according to the discrepancy in function of each grade road and the preponderant trip distance on each grade road of all traffic modes is calculated under different travel sequences.The road transportation turnover on each grade road is considered as demand and the capacity as supply.Further,the length of each road grade can be obtained satisfying different traffic modes demands.Finally,with an example,a reasonable road grade proportion can be obtained.