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中文摘要：
上海市高架道路的上匝道合流处率先实施了交替通行的控制策略.以Fukui和Ishibashi提出的FI元胞自动机交通流模型为基础,对实施该策略前后的上匝道合流处分别建立合理的交通流模型,并对交通流进行了数值模拟和分析.结果表明：当高架路主线和上匝道的来流车辆较多时,交替通行控制可以大大改善高架道路交通;当交通流稀疏时,实施控制前后交通流状况基本不发生变化.
英文摘要：
The gear-alternating control regulation was first actualized at the interfluent location of on-ramps in Shanghai elevated roads, which was theoretically studied in this paper. Different traffic flow models were established for the eases with and without the alternate controlling regulation based on the Fukui-Ishibashi cellular automaton traffic model. With the models, the traffic behavior at the interfluent location of on-ramp was investigated and some results were obtained. When there are many inflowing vehicles on the elevated road and ramp, the traffic situation on the elevated road with the controlling regulation is much better than that without it; when there are less inflowing vehicles, the elevated road situation on the whole remains the same in the two cases.
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