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首页> 外文会议>The automobile in the second decade: sharing all energy solutions >CHALLENGES AND POSSIBILITIES FOR ENHANCED VEHICLE FLOW AND SAFETY AND REDUCED FUEL CONSUMPTION AND EMISSION IN URBAN TRAFFIC IN WBC REGION
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CHALLENGES AND POSSIBILITIES FOR ENHANCED VEHICLE FLOW AND SAFETY AND REDUCED FUEL CONSUMPTION AND EMISSION IN URBAN TRAFFIC IN WBC REGION

机译：在WBC地区提高车辆流量和安全性以及减少燃油消耗和排放的挑战和可能性

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摘要

Enhanced vehicle flow and safety, reduction and eventually elimination of trafficrncongestion have been attractive issues for the past two decades in the Intelligent TransportationrnSystems (ITS) domain. Several Advanced Driver Assistance Systems (ADAS) intended to lowerrndown the driver workload, reduce congestion and improve safety, have been developed duringrnthis period and introduced on the market. Adaptive Cruise Control (ACC) is one of the firstrnsystems that lead towards enhanced traffic flow and safety, but it is limited on higher speeds. Forrnlow speeds a Stop and Go system has been introduced as an upgrade of ACC.rnIn order to achieve interoperability and harmonization several ITS standards have beenrndeveloped. Even though they are regularly adopted to the technical progress to take into accountrnthe latest engine technologies, there is still a significant room for their further elaboration andrnevaluation of the possibilities for implementation in real urban environment (especially in thernWBC region), and, if possible, proposing their further improvement.rnBased on the standard ISO 22178 Low speed following systems, a research that shouldrnreveal answers to some of the problems and challenges lied down in this paper has been designed.rnThe research is focused on urban traffic environment. Due to increased driver workload,rninattention, weather and several side activities like SMS, CD and radio change, site seeing etc.rnvehicles movement through urban intersections gets wavy effect. In these conditions, intensivernacceleration and deceleration are imminent and lead towards decreased driver concentration,rnreduced safety and increased fuel consumption and emission. This problem imposes the meaningrnof harmonized vehicle start and flow through intersections without inappropriate acceleration andrndeceleration and its impact on the traffic flow, safety, fuel consumption and emission.rnAlthough the introduction of ITS standards and researches conducted in the subject fieldrnare expected to have contribution in reduction of traffic congestion and enhanced safety, there isrna space for further contribution especially in term of implementation in regions, like WBCrnregion, with not optimized urban traffic solutions and various and often old vehicle fleet.rnSo far, in this research, the state of the art concerning ACC and all variations andrnmodifications of the system: control algorithms, controller designs, following models andrnstrategies, combinations with other Driver Assistance Systems, upgrades to Cooperative AdaptivernCruise Control and Stop and Go systems, has been reviewed and analyzed. An initial model ofrnseveral urban intersections using Matlab has been developed. Using this model, preliminaryrnqualitative and quantitative results concerning traffic flow, time of travel through urbanrnintersections, vehicle speed and acceleration/deceleration over time have been obtained. Thernmodel gives qualitative results concerning fuel consumption and emission.rnBesides the subject explanation, this paper contains research approach, results alreadyrnachieved and description of further research activities.
机译：在过去的二十年中，智能交通系统（ITS）领域中，提高车辆流量和安全性，减少交通拥堵并最终消除交通拥堵一直是有吸引力的问题。在此期间，已经开发了几种旨在降低驾驶员工作量，减少交通拥堵并提高安全性的高级驾驶员辅助系统（ADAS），并已投放市场。自适应巡航控制（ACC）是导致交通流量和安全性提高的首批系统之一，但仅限于更高的速度。为了降低速度，已经引入了Stop and Go系统作为ACC的升级版。为了实现互操作性和协调性，已经开发了几种ITS标准。尽管他们经常采用技术进步来考虑最新的发动机技术，但仍有很大的空间可以进一步阐述和重新评估在实际城市环境中（尤其是在WBC地区）实施的可能性，如果可能的话，基于标准ISO 22178低速跟随系统，已设计了一项应对本文所隐含的一些问题和挑战的研究。研究主要针对城市交通环境。由于增加了驾驶员的工作量，注意力不集中，天气以及SMS，CD和无线电更改，现场视察等多种辅助活动，使得车辆在城市交叉路口的行驶产生波浪状的影响。在这种情况下，强烈的加速和减速迫在眉睫，并导致驾驶员注意力降低，安全性降低以及燃油消耗和排放增加。这个问题强加了协调一致的车辆起步和通过交叉路口的意义，而没有不适当的加速和减速，并且对交通流量，安全性，燃料消耗和排放产生了影响。在交通拥堵和安全性提高方面，存在进一步发展的空间，特别是在WBCrnregion等区域，城市交通解决方案未优化以及各种且通常是旧车队的地区的实施方面.rn到目前为止，在这项研究中，最新技术水平关于ACC以及系统的所有变型和修改：控制算法，控制器设计，以下模型和策略，与其他驾驶员辅助系统的组合，协作式自适应巡航控制和停走系统的升级已进行了审查和分析。已经开发了使用Matlab的几个城市交叉口的初始模型。使用该模型，获得了关于交通流量，穿越城市交叉路口的时间，车辆速度以及随时间推移的加减速的初步定性和定量结果。该模型给出了有关燃料消耗和排放的定性结果。除了主题解释之外，本文还包含研究方法，已经获得的结果以及进一步研究活动的描述。

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