货运车辆高占有率路段入口称重收费站管理模式研究
发布时间:2018-06-08 10:05
本文选题:入口称重 + 出口称重 ; 参考:《河北工业大学》2015年硕士论文
【摘要】:近年来,随着我国货运产业的快速发展,货运车辆在各级公路交通组成中的占有率不断增加,货运车辆进入收费广场后,由于其自身尺寸较大而加减速性能较低,使其在收费广场处车道变化困难、收费时间延长、收费站服务水平降低;货运车辆在路段上行驶不仅会破坏道路结构,同时存在较大安全隐患,其低速运行状态还会导致尾气排放量增加,对环境造成严重污染,这些负面影响对于超限超载运输车辆更加严重。因此本文针对货运车辆高占有率路段收费站管理问题提出在货运车辆高占有率路段实行入口称重的收费站管理模式。首先,本文对我国货运车辆在交通组成中所占比例的现状和发展趋势进行了介绍、对货运车辆通过收费站的交通流运行特性及出口称重收费站管理模式进行了分析,在此基础上提出在收费公路入口收费站处设置超限检测站的入口称重收费站管理模式,同时为了保证该收费站管理模式应用的有效性,本文对影响该收费站管理模式有效应用的关键问题—货运车辆占有率较高路段收费站通行能力确定和超限检测站检测模式改进进行了研究。其次,为避免收费广场处排队长度过长影响超限检测站预检系统正常工作,针对以小型客车为主要车型对货运车辆占有率较高路段收费站通行能力进行计算的不足,并考虑货运车辆占有率较高路段收费站通行能力影响因素较多,本文利用Vissim软件建立收费站仿真模型,利用仿真方法对货运车辆占有率较高路段收费站通行能力进行仿真求解。再次,为避免超限检测站待检车道处排队车辆数过长影响正常货运车辆进入收费广场,本文提出以动态阈值调节检测模式代替固定阈值检测模式,实现根据超限检测站待检车到处排队车辆数实时调节系统实际称重阈值,并对多车型自适应性动态称重阈值模型中的关键参数进行了标定。最后,为验证本文提出的入口称重收费站管理模式应用的有效性,本文分别对出口称重管理模式和入口称重管理模式下收费站的交通流运行状况进行了对比仿真,并以收费站通过车辆数、平均排队车辆数、正常货运车辆延误、和超载控制率对仿真结果进了分析,结果表明与出口称重收费站管理模式相比,入口称重收费站管理模式能够有效提高收费站服务水平,减少收费车道平均排队车辆数,缩短正常货运车辆时间延误,并将大部分超限超载运输车辆限制在收费公路以外。
[Abstract]:In recent years, with the rapid development of freight industry in our country, the share of freight vehicles in all levels of highway traffic has been increasing. After entering the toll plaza, freight vehicles have low acceleration and deceleration performance due to their larger size. It is difficult to change the driveway at the toll plaza, the tolling time is prolonged, the service level of the toll station is reduced, and the road structure will not only be damaged by the driving of the freight vehicle on the road section, but also there is a great hidden danger to safety at the same time. The low speed operation will also lead to the increase of exhaust emissions and serious pollution to the environment. These negative effects are more serious for overloaded and overloaded vehicles. Therefore, this paper puts forward the management mode of toll station in high occupation section of freight vehicle in order to solve the problem of toll station management in high occupancy section of freight vehicle. Firstly, this paper introduces the current situation and development trend of the proportion of freight vehicles in the traffic composition in China, and analyzes the traffic flow characteristics of freight vehicles passing through the toll station and the management mode of the exit weighing toll station. On the basis of this, the paper puts forward the management mode of the entrance weighing toll station in the toll road entrance toll station, and in order to ensure the effectiveness of the application of the toll station management mode, In this paper, the key problems that affect the effective application of the management mode of the toll station are the determination of the capacity of the toll station and the improvement of the detection mode of the over-limit detection station on the section with high share of the freight vehicle. Secondly, in order to avoid the excessive queue length at the toll plaza affecting the normal operation of the pre-inspection system of the over-limit detection station, the paper aims at the shortage of calculating the capacity of the toll station on the section with high share of the freight vehicle with the minibus as the main type. Considering that there are many factors affecting the capacity of the toll station on the section with higher freight vehicle occupancy, this paper establishes the simulation model of the toll station by using Vissim software, and uses the simulation method to solve the problem of the capacity of the toll station on the higher section of the freight vehicle occupation. Thirdly, in order to avoid the excessive number of vehicles queuing in the waiting lane of the over-limit detection station to influence the normal freight vehicles to enter the toll plaza, this paper proposes to replace the fixed threshold detection mode with the dynamic threshold adjustment detection mode. According to the actual weighing threshold of the real-time control system for the number of vehicles queued everywhere in the overrun detection station, the key parameters of the dynamic weighing threshold model for multi-vehicle models are calibrated. Finally, in order to verify the effectiveness of the management mode of the entrance weighing toll station proposed in this paper, the traffic flow operation of the toll station under the exit weighing management mode and the entrance weighing management mode are compared and simulated in this paper. The simulation results are analyzed based on the number of vehicles passing through the toll station, the average number of vehicles queued in line, the delay of normal freight vehicles, and the overload control rate. The results show that compared with the management mode of the exit weighing toll station, The management mode of the entrance weighing toll station can effectively improve the service level of the toll station, reduce the average queue number of toll lanes, shorten the delay of normal freight vehicles, and limit most overloaded transport vehicles beyond toll roads.
【学位授予单位】:河北工业大学
【学位级别】:硕士
【学位授予年份】:2015
【分类号】:U491
【参考文献】
相关期刊论文 前1条
1 贺曙新;车辆动态称重技术的历史、现状与展望[J];中外公路;2004年06期
,本文编号:1995426
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