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中文摘要：
为了在提高公交运行效率的同时尽可能降低对社会车辆的干扰,以速度随机慢化（VDR）模型为基础,建立了快速公交信号优先仿真模型和评价指标,同时针对快速公交在十字交叉口绿灯延长和红灯早断的2种信号优先策略,模拟开放边界条件下社会车流受到快速公交信号优先的影响。结果表明：在信号周期不变时,合理调节快速公交信号优先的最大绿灯延长时间和最大红灯早断时间参数,可有效减少快速公交在交叉口的延误、排队长度以及停车次数,同时可将对社会车辆的影响控制在合理的范围内。
英文摘要：
In order to improve the public transit efficiency and lower its impact on the social traffic flow,on the basis of the velocity-dependent-randomization（VDR） model,the simulation models and evaluation indexes on signal priority for bus rapid transit were established.Then,considering two signal priority strategies including green light-extended time and red light-off at the intersection,the influence of the signal priority strategy on the social traffic flow under open boundary conditions was simulated.The results indicate that with given signal cycle,the delay,queue length,and parking numbers of bus rapid transit at intersection were reduced through rational regulation of its signal priority parameters,namely,the largest green light-extended time and red light-off time.Meanwhile,the reduced effects on social vehicles within a reasonable range were obtained.
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