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首页> 外文会议>Asia Pacific Transportation Development Conference >Effect of Heavy Transport Vehicles on Speed-Flow Characteristics of Mixed Traffic on Multi Lane Divided Intercity Highways
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Effect of Heavy Transport Vehicles on Speed-Flow Characteristics of Mixed Traffic on Multi Lane Divided Intercity Highways

机译：重型运输车辆对多车道划分跨越高速公路混合交通速度流动特性的影响

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Many of the passengers and goods transportation operations are carried out by heavy transport vehicles (HTVs) like medium commercial vehicles (MCVs), heavy commercial vehicles (HCVs), and multi axle vehicles (MAVs) on multi-lane divided intercity highways. The presence of these HTVs in the traffic stream influences the overall characteristics of the traffic flow mix. The slow-speed movement of these vehicles in the median lane and kerb lane in the traffic stream affects the speed-flow characteristics of the mixed traffic, thereby deterring the speed of the other classes of vehicles, which eventually reduces the capacity of the traffic stream. The main aim of this study is to investigate and analyse the dynamic characteristics of HTVs occupying the high-speed lane (median lane) and low-speed lane (kerb lane). In order to gain a better understanding and qualitative overview of the HTVs' movement in the traffic stream, the data acquisition process was carried out using a transportable infra-red traffic logger (TIRTL) set up across one direction of the four-lane divided highway connecting the Chennai City with Nagapattinam City in India. Using the acquired data, dynamic passenger car units (DPCU) of each vehicle is estimated, and inferences are drawn concerning HTVs operating speed and flow. Also, a lane-based comparative study was carried out between the speed-flow characteristics of HTVs when these HTVs' are occupying the high-speed lane and low-speed lane during their operation on the multi-lane divided intercity highways. The analysis results showed that there is a significant drop in the capacity when the HTVs are operating on the high-speed lane at speeds lower than the desired operational speed when compared to that of the capacity when the HTVs are operating on the low-speed lane.
机译：许多乘客和货物运输业务由重型运输车辆（HTVS），如中型商用车（MCV），重型商用车辆（HCV）和多车辆（MAVS）上的多通道分割间高速公路等多道车辆进行。在交通流量中存在这些HTV的存在影响交通流量混合的整体特征。这些车辆在交通流量中的中位线路和遏制车道中这些车辆的慢速运动会影响混合业务的速度流特性，从而阻止了其他类车辆的速度，最终降低了交通流量的容量。本研究的主要目的是调查和分析占高速车道（中位车道）和低速通道（遏制车道）的HTV的动态特性。为了获得HTVS'运动更好地理解和定性概述在车流中，数据采集过程进行了使用跨四车道的分道公路的一个方向设置了移动式红外行驶记录仪（TIRTL）连接Chennai City与Nagapattinam City在印度。使用所获取的数据，估计每个车辆的动态乘用车单元（DPCU），并且涉及HTVS操作速度和流量的推论。此外，在HTVS的速度流动特性之间进行基于车道的比较研究，当这些HTVS在它们的运行过程中占据了高速通道划分的跨度高速公路的操作期间的高速通道和低速通道之间。分析结果表明，当HTV在低速通道上运行时，当HTV在高于所需操作速度时，HTV在高速车道上运行高速车道上的高速车道上的容量存在显着下降。

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