Traffic signals on urban arterials and in grid networks operate in coordinated systems to provide for smooth progression of major traffic movements. 城市交通主干道及格状网络上的交通信号通常以协调的方式运作,目的是使主要的交通流能够顺畅地流动。
With color Doppler imaging, the lower extremity arterials were determined in 60 diabetes patients with diabetic foot ulcers. 对60例糖尿病足患者应用彩色多普勒超声记录下肢动脉内径和收缩期峰值流速,计算下肢动脉的斑块率、狭窄率、闭塞率。
The paper analyzes the characteristics of fuzziness of dynamic space occupancy of different vehicles on urban arterials, and classifies the different vehicles by means of fuzzy clustering. 从定义各类型车辆所占用的动态空间瞬时车道占有率入手,提出了以车辆瞬时占用车道长度与速度的比值为参数,基于模糊动态聚类对车辆进行分类的方法。
The road resources between arterials that are left unused are explored to shunt the traffic of arterial network, not only alleviating traffic pressure but also saving land and investment. 利用干道与干道间未被充分利用的道路资源来分流干道网络上的交通,既疏解了交通拥堵压力,又节约了土地与资金。
The key point to restrict traffic capacity of the arterials is intersection. The traffic capacity of an intersection is lower than a link because of the bottleneck effect and excessive traffic demand will lead to congestion. 制约城市主干路通行能力的关键点是路口,由于瓶颈效应,路口的通行能力比路段低,交通需求过大就会引发拥堵。