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| 快速路匝道汇入方案优化及软件仿真 |
| Urban expressway ramp afflux plan optimization and simulation |
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| DOI： |
| 中文关键词: 公路运输 匝道汇入方案 限速增道 快速路 通行能力 |
| 英文关键词: highway transportation ramp afflux plan speed limiting and road increasing plane expressway traffic capacity |
| 基金项目:国家自然科学基金(61272258) |
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| 摘要点击次数: 2621 |
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| 中文摘要: |
| 针对城市快速路交通压力日益增长,匝道汇入处经常形成拥堵、交通事故频发等现状,结合当前城市快速路现状,通过理论计算和仿真实验方法,对现有汇入方案进行分析和优化,提出了“限速增道”汇入方案.方案在匝道汇入处采取隔离和限制措施,适当减少主、匝道车道宽度,降低车辆速度,引主导、匝道车辆各行其道,减少相互干扰,最终达到提高汇入处通行能力的目的.仿真实验数据显示,方案的单位时间车流量、通行速度、排队长度等交通指标均明显优于其它方案,效果明显.“限速增道”方案在现有车道宽度较宽的城市快速路上可以采用. |
| 英文摘要: |
| For the growing pressure of the urban freeway traffic, the frequently congestions and traffic accidents in the ramp afflux area, the plan of speed limiting and road increasing was proposed, after analyzing and optimizing the current existing afflux plan by using theoretical calculations and simulation experiment methods. Some quarantine and restrictions measures were taken in the ramp afflux area, the width of the primary and ramp lane was reduced appropriately, the vehicles speed was limited, and the vehicles were guided to go their own way, then the mutual interference could be less. Through the above measures, the traffic capacity of the ramp afflux was increased. The data of simulation experiments shows that this proposal excelle other proposals and is very effective based on the following traffic indicators, such as the traffic flow per unit time, the traffic speed and the queue length of vehicles etc. The proposal of "Speed Limiting and Road Increasing" is used in the urban express way with wide traffic lane. |
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