Arterial road development not only helps alleviate traffic congestion , but also contributes greatly to the reduction of carbon dioxide emitted by vehicles in tokyo and is directly related to reducing air pollution 主干线道路的整备不仅能够缓解交通堵塞，还能大幅削减市内汽车co2的排放量，而这与减少大气污染有着直接联系。
Promote development of the three loop roads which together serve as the main arteries for road transportation in the greater tokyo area , and the framework of arterial roads designed to maximize the efficiency of the three loop roads 促进三环道路以及东京圈交通道路的主干道的开发。主干道网络的目的在于最大发挥三环道路的有效性。
A police spokesman said that stopping a vehicle within the hatched area of a box - junction would create a potential danger to other road users as it causes obstruction to motorists in the vicinity and creates traffic congestion on the connecting main arterial roads 警方发言人表示，在黄色方格路口的影线范围内非法停车不但对其他道路使用者构成潜在危险，亦会阻碍其附近的车辆，引致连接主要干线道路的交通更加挤塞。
While promoting the development of the three loop roads of the tokyo megalopolis region by , for example , making a breakthrough in construction of the tokyo outer loop road that has been frozen for over 30 years , the metropolitan government is also pressing forward with the development of the arterial roads that form the city s framework , such as the ring roads of the ward area and the tama north - south road 例如，在促进东京都三环道路开发的同时，力争在已经停滞了近三十年东京外环路的建设上取得一个的突破，都政府也在加紧城市主干道路的开发工作。这些主干道路构成了城市的基本框架，诸如特别区内的环线和多摩的南北道路。
Once the three loop roads connecting the greater tokyo area are completed and the network of arterial roads is fully developed , the speed of traffic will improve to 25 kilometers per hour , comparable to traffic during the bon or new year s holidays , resulting in an immediate alleviation of traffic congestion , one of tokyo s largest weaknesses 东京交通平均时速仅为18公里小时，比一个马拉松运动员还要慢。一旦联结首都圈的三条环线路完工，主干线道路网络完备，交通速度将提高到25公里小时，可以与盂兰盆节和新年假期时相提并论了。
The construction graph of the ant colony optimization ( aco ) algorithm is revised to solve traffic control problems . and the aco algorithm is improved further to obtain better search efficiency in large - scale traffic control problems . finally , on the simulation and analysis system for urban mixed traffic ( sasumt ) that was developed by zhejiang university , the two utaccss are compared and analyzed in the cases of an isolated intersection , an arterial road and a traffic region 本文主要在这三个方面进行了深入研究，相应地建立了配时参数协调优化和信号相位滚动优化两种主要的基于模型的utaccs控制算法，通过设计蚁群优化( antcolonyoptimization ， aco )算法的解构造图使其能够应用于交通控制问题的求解，并且改进aco算法以提高其在大规模交通控制问题上的搜索性能，最后在浙江大学自主研发的城域混合交通仿真与分析系统( simulationandanalysissystemforurbanmixedtraffic ， sasumt )上从单点控制、干线控制及区域控制不同层次对所建立的两种控制算法的控制效果进行了比较和分析。
