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ITSC 2001. 2001 IEEE Intelligent Transportation Systems. Proceedings (Cat. No.01TH8585)最新文献

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A cooperative fuzzy control method for traffic lights 交通信号灯的协同模糊控制方法
ITSC 2001. 2001 IEEE Intelligent Transportation Systems. Proceedings (Cat. No.01TH8585) Pub Date : 2001-08-25 DOI: 10.1109/ITSC.2001.948653
Hong Wei, Wang Yong, Mu Xuanqin, Wu Yan
{"title":"A cooperative fuzzy control method for traffic lights","authors":"Hong Wei, Wang Yong, Mu Xuanqin, Wu Yan","doi":"10.1109/ITSC.2001.948653","DOIUrl":"https://doi.org/10.1109/ITSC.2001.948653","url":null,"abstract":"The controlling of traffic signals is an important aspect in modern traffic system. In this paper, we present new concepts that called main urgent phase and minor urgent phase. The traffic data are acquired from the detectors in the intersections and lanes. Based on the concepts of main and minor urgent phase, a set of novel fuzzy control rules is developed to control the phases and delay of traffic lights according to the dynamic characters of some correlative traffic intersections. The new method can reduce the average delay time of vehicles effectively. The method is compared with the method of Jee-Hyong Lee et al. (1995, 1999) by computer simulation, and the results prove that our method can improve the performance significantly especially when the traffic flow is light.","PeriodicalId":173372,"journal":{"name":"ITSC 2001. 2001 IEEE Intelligent Transportation Systems. Proceedings (Cat. No.01TH8585)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134095279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 22
ALINEA: a local traffic responsive strategy for ramp metering. Field results on A6 motorway in Paris ALINEA:匝道计量的本地交通响应策略。巴黎A6高速公路现场结果
ITSC 2001. 2001 IEEE Intelligent Transportation Systems. Proceedings (Cat. No.01TH8585) Pub Date : 2001-08-25 DOI: 10.1109/ITSC.2001.948638
H. Haj-Salem, P. Poirier, Jean-Franqois Heylliard, Jean-Paul Peynaud
{"title":"ALINEA: a local traffic responsive strategy for ramp metering. Field results on A6 motorway in Paris","authors":"H. Haj-Salem, P. Poirier, Jean-Franqois Heylliard, Jean-Paul Peynaud","doi":"10.1109/ITSC.2001.948638","DOIUrl":"https://doi.org/10.1109/ITSC.2001.948638","url":null,"abstract":"ALINEA, a local feedback ramp metering strategy, has been experimented on the A6 motorway around Paris on four consecutive on-ramps. This paper summarizes the field results achieved and presents the main features of ALINEA. The impact of ramp metering is studied by comparative evaluation of a number of performance indices in the cases with and without control. The main finding of the field trial is that the application of an efficient ramp metering strategy considerably improves the traffic conditions on the motorway. The reported results indicate the ease of application, flexibility, and high efficiency of ALINEA. Planned future implementations are briefly outlined.","PeriodicalId":173372,"journal":{"name":"ITSC 2001. 2001 IEEE Intelligent Transportation Systems. Proceedings (Cat. No.01TH8585)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125746586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 23
A simple and effective method for predicting travel times on freeways 一种简单有效的高速公路行车时间预测方法
ITSC 2001. 2001 IEEE Intelligent Transportation Systems. Proceedings (Cat. No.01TH8585) Pub Date : 2001-08-25 DOI: 10.1109/ITSC.2001.948660
J. Rice, E. V. van Zwet
{"title":"A simple and effective method for predicting travel times on freeways","authors":"J. Rice, E. V. van Zwet","doi":"10.1109/ITSC.2001.948660","DOIUrl":"https://doi.org/10.1109/ITSC.2001.948660","url":null,"abstract":"We present a method to predict the time that will be needed to traverse a certain stretch of freeway when departure is at a certain time in the future. The prediction is done on the basis of the current traffic situation in combination with historical data. We argue that, for our purpose, the current situation of a stretch of freeway is well summarized by the 'current status travel time'. This is the travel time that would result if one were to depart immediately and no significant changes in the traffic would occur. This current status travel time can be estimated from single or double loop detectors, video data, probe vehicles or by any other means. Our prediction method arises from the empirical fact that there exists a linear relationship between any future travel time and the current status travel time. The slope and intercept of this relationship is observed to change subject to the time of day and the time until departure. This naturally leads to a prediction scheme by means of linear regression with time varying coefficients.","PeriodicalId":173372,"journal":{"name":"ITSC 2001. 2001 IEEE Intelligent Transportation Systems. Proceedings (Cat. No.01TH8585)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122386706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 22
Collision avoidance system for fixed obstacles-fuzzy controller network for robot driving of an autonomous vehicle 固定障碍物避碰系统——自动驾驶汽车机器人驾驶模糊控制器网络
ITSC 2001. 2001 IEEE Intelligent Transportation Systems. Proceedings (Cat. No.01TH8585) Pub Date : 2001-08-25 DOI: 10.1109/ITSC.2001.948706
U. Lages
{"title":"Collision avoidance system for fixed obstacles-fuzzy controller network for robot driving of an autonomous vehicle","authors":"U. Lages","doi":"10.1109/ITSC.2001.948706","DOIUrl":"https://doi.org/10.1109/ITSC.2001.948706","url":null,"abstract":"A Collision Avoidance System (CAS), which overrules the driver in a critical situation, by steering and/or braking has to be better and more reliable than the driver himself. The driving maneuver is complex and difficult to calculate by traditional mathematical models. Therefore, an ACC car with extended sensors for object detection and a human driver were taken in order to get the data how the driver avoids the Collision with a fixed object in the driving lane. Afterwards, this data was used in order to develop a fuzzy controller network of full collision avoidance for fixed objects. The effectiveness and the robustness of the more than 300 rules of the Fuzzy Controller Network were tested by using the same ACC car, but driven by a robot on the driver seat. The result of these tests are presented in this paper.","PeriodicalId":173372,"journal":{"name":"ITSC 2001. 2001 IEEE Intelligent Transportation Systems. Proceedings (Cat. No.01TH8585)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124387318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Duplex motion planning strategy for automatic manoeuvre of vehicle in complex environment 复杂环境下车辆自动机动的双工运动规划策略
ITSC 2001. 2001 IEEE Intelligent Transportation Systems. Proceedings (Cat. No.01TH8585) Pub Date : 2001-08-25 DOI: 10.1109/ITSC.2001.948671
Jin Xu, Ming Xie, Jiangzhou Lu
{"title":"Duplex motion planning strategy for automatic manoeuvre of vehicle in complex environment","authors":"Jin Xu, Ming Xie, Jiangzhou Lu","doi":"10.1109/ITSC.2001.948671","DOIUrl":"https://doi.org/10.1109/ITSC.2001.948671","url":null,"abstract":"A new strategy of duplex motion planning is presented in this paper. The basic philosophy is to (once or successively) divide the environment into two zones: highly constrained zone (eg. space around a parking slot) that contains either the initial or final configuration, and lightly constrained environment (eg., road near a parking slot) that contains either the final or initial configuration. The strategy of duplex motion planning suggests that it is much simpler and easier if the motion planning starts with the configuration located inside the highly constrained zone. In this paper, our proposed strategy is illustrated by using the automatic parking manoeuvre as an example. It turns out that the duplex motion planning strategy generates practical solutions in a very simple and, fast way regardless the complexity of the environment. Another advantage of the proposed strategy is to obtain the motions that are executable for both of the cases either from the initial configuration to the final configuration, or from the final configuration to the initial configuration.","PeriodicalId":173372,"journal":{"name":"ITSC 2001. 2001 IEEE Intelligent Transportation Systems. Proceedings (Cat. No.01TH8585)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115122652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Shadow detection algorithms for traffic flow analysis: a comparative study 交通流分析中阴影检测算法的比较研究
ITSC 2001. 2001 IEEE Intelligent Transportation Systems. Proceedings (Cat. No.01TH8585) Pub Date : 2001-08-25 DOI: 10.1109/ITSC.2001.948680
Andrea Prati, I. Mikic, Costantino Grana, Mohan M. Trivedi
{"title":"Shadow detection algorithms for traffic flow analysis: a comparative study","authors":"Andrea Prati, I. Mikic, Costantino Grana, Mohan M. Trivedi","doi":"10.1109/ITSC.2001.948680","DOIUrl":"https://doi.org/10.1109/ITSC.2001.948680","url":null,"abstract":"Shadow detection is critical for robust and reliable vision-based systems for traffic flow analysis. In this paper we discuss various shadow detection approaches and compare two critically. The goal of these algorithms is to prevent moving shadows being misclassified as moving objects (or parts of them), thus avoiding the merging of two or more objects into one and improving the accuracy of object localization. The environment considered is an outdoor highway scene with multiple lanes observed by a single fixed camera. The important features of shadow detection algorithms and the parameter set-up are analyzed and discussed. A critical evaluation of the results both in terms of accuracy and in terms of computational complexity are outlined. Finally, possible integration of the two approaches into a robust shadow detector is presented as future direction of our research.","PeriodicalId":173372,"journal":{"name":"ITSC 2001. 2001 IEEE Intelligent Transportation Systems. Proceedings (Cat. No.01TH8585)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115248357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 106
Effects of communication delay on string stability in vehicle platoons 通信延迟对车辆排串稳定性的影响
ITSC 2001. 2001 IEEE Intelligent Transportation Systems. Proceedings (Cat. No.01TH8585) Pub Date : 2001-08-25 DOI: 10.1109/ITSC.2001.948732
Xiangheng Liu, A. Goldsmith, S. S. Mahal, J. Hedrick
{"title":"Effects of communication delay on string stability in vehicle platoons","authors":"Xiangheng Liu, A. Goldsmith, S. S. Mahal, J. Hedrick","doi":"10.1109/ITSC.2001.948732","DOIUrl":"https://doi.org/10.1109/ITSC.2001.948732","url":null,"abstract":"The throughput of vehicles on highways can be greatly increased by forming vehicle platoons. The control law that maintains stable operation of a platoon is dependent on the lead and preceding vehicle's position, velocity and acceleration profiles. These profiles guarantee string stability of a platoon and are transmitted via wireless communication networks. Communication networks generally introduce delays and drop packets. However, these communication faults are not typically taken into account in controller designs. In this paper, we examine the robustness of current longitudinal controller designs to communication delays. The results show that string stability is seriously compromised by communication delays introduced by the network when the controllers are triggered by the receipt of either the lead vehicle information or the preceding vehicle information. We find that when all the vehicles are synchronized to update their controllers at the same time, string stability can be maintained if the delay in preceding vehicle information is small. An upper bound on the preceding vehicle information delay is derived through a simple partial fraction expansion approach. We also point out a potential problem due to the clock jitters associated with the synchronization among vehicles.","PeriodicalId":173372,"journal":{"name":"ITSC 2001. 2001 IEEE Intelligent Transportation Systems. Proceedings (Cat. No.01TH8585)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115332107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 293
Emergency calls location using TDOA technique along a motorway dedicated cellular radio network 在高速公路专用蜂窝无线网络上使用TDOA技术定位紧急呼叫
ITSC 2001. 2001 IEEE Intelligent Transportation Systems. Proceedings (Cat. No.01TH8585) Pub Date : 2001-08-25 DOI: 10.1109/ITSC.2001.948785
M. Laoufi, M. Heddebaut, J. Rouvaen
{"title":"Emergency calls location using TDOA technique along a motorway dedicated cellular radio network","authors":"M. Laoufi, M. Heddebaut, J. Rouvaen","doi":"10.1109/ITSC.2001.948785","DOIUrl":"https://doi.org/10.1109/ITSC.2001.948785","url":null,"abstract":"This paper presents a new alert and emergency warning system concept based on a dedicated 2G or 3G cellular radio network operated along highways and motorways. By offering some of the services defined under the intelligent transport system initiative, it aims at enhancing and improving road safety. In order to locate emergency calls, the authors examine, in the context of the dedicated cellular system, the performances achieved by a time difference of arrival (TDOA) positioning technique. It then focuses on the requested physical infrastructure implantation accuracy.","PeriodicalId":173372,"journal":{"name":"ITSC 2001. 2001 IEEE Intelligent Transportation Systems. Proceedings (Cat. No.01TH8585)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115308738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Road traffic indicators and their prediction 道路交通指标及其预测
ITSC 2001. 2001 IEEE Intelligent Transportation Systems. Proceedings (Cat. No.01TH8585) Pub Date : 2001-08-25 DOI: 10.1109/ITSC.2001.948821
M. Danech-Pajouh
{"title":"Road traffic indicators and their prediction","authors":"M. Danech-Pajouh","doi":"10.1109/ITSC.2001.948821","DOIUrl":"https://doi.org/10.1109/ITSC.2001.948821","url":null,"abstract":"Road traffic indicators provide a means of evaluating the performance of a road or a sub-network. The goal of this paper is to describe a variant for calculating a number of road traffic indicators and their prediction algorithm.","PeriodicalId":173372,"journal":{"name":"ITSC 2001. 2001 IEEE Intelligent Transportation Systems. Proceedings (Cat. No.01TH8585)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115471857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Autonomous underwater vehicle navigation scheme for cable following 水下航行器电缆跟随自主导航方案
ITSC 2001. 2001 IEEE Intelligent Transportation Systems. Proceedings (Cat. No.01TH8585) Pub Date : 2001-08-25 DOI: 10.1109/ITSC.2001.948712
Arjuna Balasuriya, T. Ura
{"title":"Autonomous underwater vehicle navigation scheme for cable following","authors":"Arjuna Balasuriya, T. Ura","doi":"10.1109/ITSC.2001.948712","DOIUrl":"https://doi.org/10.1109/ITSC.2001.948712","url":null,"abstract":"A navigation scheme for autonomous underwater vehicles (AUVs) following underwater cables is presented. The objective in following the cable is to capture a video of the cable for inspection purposes. Two main practical difficulties arising in using optical images for navigation are considered and a sensor fusion scheme is proposed to overcome these problems. The paper presents experimental results obtained by implementing this algorithm in the AUV, called 'Twin-Burger 2'. Field tests were carried out in testing tanks as well as in lake waters. The results indicates that the proposed navigation scheme could handle the two practical problems and achieve cable following.","PeriodicalId":173372,"journal":{"name":"ITSC 2001. 2001 IEEE Intelligent Transportation Systems. Proceedings (Cat. No.01TH8585)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115806050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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