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Fighting Traffic Congestion with Information Technology

机译:利用信息技术应对交通拥堵

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Traffic congestion is a vexing problem felt by residents of most urban areas. Despite centuries of effort and billions of dollars worth of public spending to alleviate congestion, the problem appears to be getting worse. Between 1980 and 1999, vehicle-miles of travel on U.S. roadways grew by 76 percent, while lane miles increased by only 3 percent. Average daily vehicular volumes on urban interstates rose by 43 percent between 1985 and 1999, from 10.331 million to 14.757 million. In a study of 68 urban areas published in 2001, the Texas Transportation Institute reported that the percentage of daily travel taking place during congested periods increased from 32 percent in 1982 to 45 percent in 1999; typical motorists faced seven hours per day of congested roadways in 1999 compared with five hours in 1982. According to the Federal Highway Administration, road delays (defined as travel time in ex-cess of that at free flow conditions) increased by 8.5 percent between 1993 and 1997. Congestion also pollutes the air and wastes precious fuel.
机译:大多数城市居民感到交通拥堵是一个令人头疼的问题。尽管为缓解拥堵进行了数年的努力和价值数十亿美元的公共支出,但问题似乎越来越严重。在1980年至1999年之间,美国道路上的行车里程增长了76%,而车道里程仅增长了3%。在1985年至1999年之间,城市州际公路上的平均每日车辆行驶量增长了43%,从1033.1万增加到1475.7万。在2001年发布的对68个城市地区的研究中,得克萨斯州交通运输研究所报告说,交通拥堵期间的日常出行比例从1982年的32%增加到1999年的45%;典型的驾驶者在1999年每天要面对7个小时的拥挤道路,而在1982年则是5个小时。根据联邦公路管理局的数据,1993年之间的道路延误(超出自由流动条件的行驶时间)增加了8.5%和1997年。交通拥挤还污染了空气,浪费了宝贵的燃料。

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