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一、天津市区缺少高速路天津市区的“三环、十四线”是目前行车速度较快的主干道系统,但其“快速”仅是相对而言。实际上,天津市区缺少真正的快速路系统。1.路口瓶颈是关键因素天津城区的主干道系统是在原有道路基础上改扩建而成的。遍布其上的大大小小的交叉路口在改扩建后,被完整地保留了下来,在方便通行的同时,也成为制约车速的主要因素。显然,路口越多、交通流量越大、自行车和行人越多,道路的行车速度就越受影响;主干道虽然路面宽
First, the lack of highway in Tianjin City Tianjin area “Third Ring, fourteen lines ” is the current traffic speed of the trunk road system, but its “fast” is only relative. In fact, Tianjin lacks a real expressway system. 1. The Bottleneck at the Intersection Is the Key Factor The trunk road system in Tianjin City is built on the basis of the original road. The large and small intersections across the city were completely preserved after the expansion and expansion. As a result, they also became the main factor restricting the speed of vehicles while facilitating traffic. Obviously, the more junctions, the greater the traffic flow, and the more bicycles and pedestrians, the more affected the traffic speed of the road. Although the main road is wide