1. Traffic Bottleneck 1251366 周正阳

2. 1.Inspiration Some Friday nightfall Highway version of ‘BeiAn’Line 17:30 19:30 slowed down ; the toll station. Highway narrowed from 4 to 2 lanes.

3. 2.Definition localized disruption specific physical condition design of the road; badly timed traffic lights; sharp curves. temporary situations

4. 3. Characters a)low velocity; increased delays; b)disorder situation of traffic management; c)wasted traffic resources ; d)low lane efficiency & high vehiclelane occupancy（车道占有率）.

5. 4.An Example Zhen Bei Rd. interchange traffic bottlenecks are marked in blue circles. Ramp(匝道） Slope(坡度）

6. 5.Solutions a)Import control strategy limiting the entrance into the traffic: regulating key intersection(关键交叉口调控); limiting merges of the main lane（主线汇入限制); setting no passing area; b)Induction of triage(诱导分流) strategy guiding drivers real-time traffic information: Variable Message Signs(可变情报板); navigation system; mass media; avoid congestion. c)Demand regulating strategy analyzing surrounding traffic rearranging the accesses of buildings traffic flow(交通流)

7. 6.References 城市道路瓶颈交通调节策略研究  《交通标准化》-2013年3期 刘伟黄丹秦伟彬 Traffic bottleneck Fundamental diagram of traffic flow From Wikipedia, the free encyclopedia

8. 7. Review Inspiration Definition Characters An Example Solutions References