| Some cities designate exclusive lanes for buses to ensure the operational efficiency of public transportation vehicles.During peak periods of public transportation demand,social vehicles are generally prohibited from entering the exclusive bus lanes,but this conflicts with the needs of social vehicles to pass through the city road network during rush hours.This article proposes a method for multiplexing dedicated bus lanes.By detecting the location of controlled objects in real-time traffic flow and issuing control commands to allow or disallow entry into the bus lane based on certain conditions.The article mainly focuses on two aspects: intersections and road sections,selecting factors that can affect the optimization of the control method,quantifying them,and determining the traffic flow environment that is most suitable for reusing bus lanes.Using the improved moving bottleneck determination method based on the IDM car-following model,the optimization effect of the bus lane reuse control method under different traffic flow environments that cause congestion due to mobile bottlenecks in the urban road network is quantified.The research findings of this article can provide a theoretical basis and data support for improving the utilization rate of road space resources after the popularization of intelligent vehicles in the future.Through microscopic traffic flow simulation experiments,it is found that the reuse control method for bus lanes can alleviate traffic congestion caused by mobile bottlenecks,as long as it does not affect the operational efficiency of buses when the traffic flow is at a higher saturation level and the proportion of heavy-duty vehicles is below 30%.The optimal range of heavy-duty vehicle proportions for optimizing mobile bottlenecks using this control method is between 20% and 25%.Using this control method in this range can reduce the proportion of congestion caused by mobile bottlenecks by 16.7% to 42.9%.However,in environments with lower saturation levels of traffic flow,the optimization effect of the reuse control method gradually decreases with an increase in the proportion of heavy-duty vehicles.Additionally,in high saturation traffic flow,the incremental effect of introducing static channelization improvements at intersections on alleviating mobile bottlenecks in the road network is not significant,with a range of 28.6% to 50% reduction in congestion mileage.On the other hand,in environments with lower saturation traffic flow,the incremental effect of introducing static channelization improvements at intersections on alleviating mobile bottlenecks in the road network is more significant,with a range of 20% to 50% reduction in congestion mileage. |
