The total trip time enclose the time used in block and out of block, reasonable density of road network should make the total trip time to be least.

居民每次出行的总时间一般包括城市干路内的时间和干路所围合的街区内的出行时间，合理的干路网密度应当使二者之和最小。

youdao

Through studying the relation between urban land and layout of road network, the influences of road layout and road span on the density of road network are discussed.

通过研究道路网布局与城市用地关系，探讨道路布局与道路间距对道路网密度的共同影响。

youdao

In America, the optimum density for the best use of road space is around 50 vehicles per lane-mile.

在美国，道路最佳使用效率的理想车辆密度大约是每车道英里50辆车。

youdao

Each car starts with a certain position and speed, and the road thus has a particular density of cars that changes as they move along, and as new cars are injected from a junction slip-road.

ECONOMIST: Traffic management: Desynchronised | The