Pub Date : 2003-12-19DOI: 10.1109/ITSC.2003.1252697
A. Di Febbraro, D. Giglio, N. Sacco
The control of urban traffic is one of the most difficult problems to face in transportation research. In this paper, a valuable hybrid model of urban networks of signalized intersections is used to solve the problem of controlling some special classes of vehicles. In particular, the problem of coordinating several traffic lights is addressed and solved by means of a hierarchic control structure by defining simple control algorithms. The experimental applications of the proposed control structure to two case studies, relevant to the Italian city of Turin, are reported and discussed.
{"title":"On controlling privileged vehicles by means of coordinated traffic lights","authors":"A. Di Febbraro, D. Giglio, N. Sacco","doi":"10.1109/ITSC.2003.1252697","DOIUrl":"https://doi.org/10.1109/ITSC.2003.1252697","url":null,"abstract":"The control of urban traffic is one of the most difficult problems to face in transportation research. In this paper, a valuable hybrid model of urban networks of signalized intersections is used to solve the problem of controlling some special classes of vehicles. In particular, the problem of coordinating several traffic lights is addressed and solved by means of a hierarchic control structure by defining simple control algorithms. The experimental applications of the proposed control structure to two case studies, relevant to the Italian city of Turin, are reported and discussed.","PeriodicalId":123155,"journal":{"name":"Proceedings of the 2003 IEEE International Conference on Intelligent Transportation Systems","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117195888","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}
Pub Date : 2003-12-19DOI: 10.1109/ITSC.2003.1252711
Z. Liao
This paper describes the operations of a GPS-based automatic vehicle location and dispatch system for dispatching taxi vehicles and explores the ergonomic factors influencing in-vehicle human-system interactions. The findings suggest that the in-vehicle dispatch device should be ergonomically designed and installed in order to deal with various environmental impacts on dispatch operations. It has practical implications for managing the operations of public transport and other service vehicles.
{"title":"GPS-based AVLDS and in-vehicle ergonomic interface","authors":"Z. Liao","doi":"10.1109/ITSC.2003.1252711","DOIUrl":"https://doi.org/10.1109/ITSC.2003.1252711","url":null,"abstract":"This paper describes the operations of a GPS-based automatic vehicle location and dispatch system for dispatching taxi vehicles and explores the ergonomic factors influencing in-vehicle human-system interactions. The findings suggest that the in-vehicle dispatch device should be ergonomically designed and installed in order to deal with various environmental impacts on dispatch operations. It has practical implications for managing the operations of public transport and other service vehicles.","PeriodicalId":123155,"journal":{"name":"Proceedings of the 2003 IEEE International Conference on Intelligent Transportation Systems","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116229132","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}
Pub Date : 2003-12-19DOI: 10.1109/ITSC.2003.1252656
Jindong Yang, Dongyuan Yang
Through the analysis of the characteristics of traffic flow in intersections, this paper proposes a dynamically optimized cycle time model, which is optimized form twofold-programming for signalized intersections. As a result, two optimized objects minimize vehicle delay, while effectively maximizing the flow rate in intersections. The scheme demonstrated for this model and its algorithm can be dynamically adjusted in time under the guidance of real-time flow forecasting.
{"title":"A dynamically optimized cycle time model based on real-time flow forecasting for signalized intersection","authors":"Jindong Yang, Dongyuan Yang","doi":"10.1109/ITSC.2003.1252656","DOIUrl":"https://doi.org/10.1109/ITSC.2003.1252656","url":null,"abstract":"Through the analysis of the characteristics of traffic flow in intersections, this paper proposes a dynamically optimized cycle time model, which is optimized form twofold-programming for signalized intersections. As a result, two optimized objects minimize vehicle delay, while effectively maximizing the flow rate in intersections. The scheme demonstrated for this model and its algorithm can be dynamically adjusted in time under the guidance of real-time flow forecasting.","PeriodicalId":123155,"journal":{"name":"Proceedings of the 2003 IEEE International Conference on Intelligent Transportation Systems","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124686501","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}
Pub Date : 2003-12-19DOI: 10.1109/ITSC.2003.1252641
Yanjuan Yang, Z. Jin, W. Tian, Feng Qian
This paper describes an application of R-T-S fixed interval optimal smoothing technique in GPS/DR integrated navigation system. Usually, a Kalman filter is used to estimate the navigation parameters of GPS/DR integrated navigation system. The precision of optimal smoothing is higher than that of Kalman filter from the theories point of view. So this paper uses R-T-S smoothing technique to test and evaluate GPS/DR integrated navigation system via post processing of navigation system via post processing of navigation data. The semi-physical simulation is implemented on computer with the static test data given by GPS and DR. The results show that R-T-S smoothing can effectively test and evaluate the GPS/DR integrated navigation system accuracy, and it is a valid post processing method.
{"title":"Application of fixed interval smoothing to GPS/DR integrated navigation system","authors":"Yanjuan Yang, Z. Jin, W. Tian, Feng Qian","doi":"10.1109/ITSC.2003.1252641","DOIUrl":"https://doi.org/10.1109/ITSC.2003.1252641","url":null,"abstract":"This paper describes an application of R-T-S fixed interval optimal smoothing technique in GPS/DR integrated navigation system. Usually, a Kalman filter is used to estimate the navigation parameters of GPS/DR integrated navigation system. The precision of optimal smoothing is higher than that of Kalman filter from the theories point of view. So this paper uses R-T-S smoothing technique to test and evaluate GPS/DR integrated navigation system via post processing of navigation system via post processing of navigation data. The semi-physical simulation is implemented on computer with the static test data given by GPS and DR. The results show that R-T-S smoothing can effectively test and evaluate the GPS/DR integrated navigation system accuracy, and it is a valid post processing method.","PeriodicalId":123155,"journal":{"name":"Proceedings of the 2003 IEEE International Conference on Intelligent Transportation Systems","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123275892","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}
Pub Date : 2003-12-19DOI: 10.1109/ITSC.2003.1252653
Li Lin, Tang Nan, Mu Xiangyang, Shi Fubing
Traffic lights are commonly used in the intersection in urban areas nowadays. In fact a network of the traffic lights regulating the urban vehicle can be viewed as a complex discrete-event system (DES). It is proved that Petri nets are one of the methodologies for modeling, analyzing and controlling on DES. A new approach via programmable logic controller (PLC) and Petri net synthesis is proposed in this paper. Firstly, we described the typical urban traffic lights control using Petri nets. Having compared with three methods for Petri nets realization, the best implementation method of the traffic lights control system was one which made with the PLC. The sequential function chart (SFC) of the PLC system is also given in the thesis. The result shown that the method has many advantages at improving flexibility and troubleshoots of system and reducing the difficulty in its realization.
{"title":"Implementation of traffic lights control based on Petri nets","authors":"Li Lin, Tang Nan, Mu Xiangyang, Shi Fubing","doi":"10.1109/ITSC.2003.1252653","DOIUrl":"https://doi.org/10.1109/ITSC.2003.1252653","url":null,"abstract":"Traffic lights are commonly used in the intersection in urban areas nowadays. In fact a network of the traffic lights regulating the urban vehicle can be viewed as a complex discrete-event system (DES). It is proved that Petri nets are one of the methodologies for modeling, analyzing and controlling on DES. A new approach via programmable logic controller (PLC) and Petri net synthesis is proposed in this paper. Firstly, we described the typical urban traffic lights control using Petri nets. Having compared with three methods for Petri nets realization, the best implementation method of the traffic lights control system was one which made with the PLC. The sequential function chart (SFC) of the PLC system is also given in the thesis. The result shown that the method has many advantages at improving flexibility and troubleshoots of system and reducing the difficulty in its realization.","PeriodicalId":123155,"journal":{"name":"Proceedings of the 2003 IEEE International Conference on Intelligent Transportation Systems","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125589398","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}
Pub Date : 2003-12-19DOI: 10.1109/ITSC.2003.1252639
Wang Bin, Wang Jian, Wu Jianping, Cai Baigen
A GPS/INS integrated navigation system based on the theory of multi-sensor data fusion is presented in this paper. Error models for the inertial measurement unit are generated and included in the extended Kalman filter for INS. An improved decentralized Kalman filter is developed to eliminate obvious error of GPS data and reduce the load of calculation. An adaptive federal Kalman filter is used to fuse the data from GPS and INS to provide smoothed and continuous positioning data against the presence of GPS blockages or communication dropouts and the unbounded INS errors growing with time. The results demonstrate that the performance of the adaptive GPS/INS integrated navigation system is better than that of using only GPS of INS.
{"title":"Study on adaptive GPS/INS integrated navigation system","authors":"Wang Bin, Wang Jian, Wu Jianping, Cai Baigen","doi":"10.1109/ITSC.2003.1252639","DOIUrl":"https://doi.org/10.1109/ITSC.2003.1252639","url":null,"abstract":"A GPS/INS integrated navigation system based on the theory of multi-sensor data fusion is presented in this paper. Error models for the inertial measurement unit are generated and included in the extended Kalman filter for INS. An improved decentralized Kalman filter is developed to eliminate obvious error of GPS data and reduce the load of calculation. An adaptive federal Kalman filter is used to fuse the data from GPS and INS to provide smoothed and continuous positioning data against the presence of GPS blockages or communication dropouts and the unbounded INS errors growing with time. The results demonstrate that the performance of the adaptive GPS/INS integrated navigation system is better than that of using only GPS of INS.","PeriodicalId":123155,"journal":{"name":"Proceedings of the 2003 IEEE International Conference on Intelligent Transportation Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125795449","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}
Pub Date : 2003-12-19DOI: 10.1109/ITSC.2003.1252708
Jianmin Sun, Qingmei Yang, Yuewu Dong, Yi Zhang
The riding comfort and handling safety of vehicle are regarded as control aims. With the nonlinearity of the road-vehicle system, an adjustable fuzzy control algorithm, whose fuzzy control rule table can be obtained with the numerical calculation is put forward. Because the algorithm can adjust the rectification factor of fuzzy controller with the least means squares (LMS) method, it can reflect the advantage of fuzzy logic in nonlinearity systems and also can improve the disadvantage of common fuzzy control method strongly depending on the experience. For two degree-of freedom (DOF) vehicle model, the simulation of vehicle performance in road signal is studied, its results show the adjustable fuzzy controller can reduce the acceleration of the sprung mass by a factor of 20. According to the experiment study of vehicle model, the results further prove that the algorithm can effectively control the vibration of the vehicle system.
{"title":"LMS adaptive fuzzy control for vehicle active suspension system","authors":"Jianmin Sun, Qingmei Yang, Yuewu Dong, Yi Zhang","doi":"10.1109/ITSC.2003.1252708","DOIUrl":"https://doi.org/10.1109/ITSC.2003.1252708","url":null,"abstract":"The riding comfort and handling safety of vehicle are regarded as control aims. With the nonlinearity of the road-vehicle system, an adjustable fuzzy control algorithm, whose fuzzy control rule table can be obtained with the numerical calculation is put forward. Because the algorithm can adjust the rectification factor of fuzzy controller with the least means squares (LMS) method, it can reflect the advantage of fuzzy logic in nonlinearity systems and also can improve the disadvantage of common fuzzy control method strongly depending on the experience. For two degree-of freedom (DOF) vehicle model, the simulation of vehicle performance in road signal is studied, its results show the adjustable fuzzy controller can reduce the acceleration of the sprung mass by a factor of 20. According to the experiment study of vehicle model, the results further prove that the algorithm can effectively control the vibration of the vehicle system.","PeriodicalId":123155,"journal":{"name":"Proceedings of the 2003 IEEE International Conference on Intelligent Transportation Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116001141","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}
Pub Date : 2003-12-19DOI: 10.1109/ITSC.2003.1252670
Zhaosheng Yang, Honghong Liu, Xinyue Wang
An important part of today's traffic is parking and most especially in the congested urban areas. This often leads to additional traffic. As part of ITS deployment in China, parking guidance system is drawing attention for alleviating congestion. Considering the existing traffic management measures, the schematic of integrating advanced parking guidance and information system into urban traffic flow guidance system is put forward in the first part of this paper. The rest of this paper deals with the key technologies for improving the efficiency of parking guidance system such as information, routing, toll collection by using dedicated short range communications, communication technology in the mobile environment, prediction method of available parking spaces, etc. The last section provides some suggestions that future study needs.
{"title":"The research on the key technologies for improving efficiency of parking guidance system","authors":"Zhaosheng Yang, Honghong Liu, Xinyue Wang","doi":"10.1109/ITSC.2003.1252670","DOIUrl":"https://doi.org/10.1109/ITSC.2003.1252670","url":null,"abstract":"An important part of today's traffic is parking and most especially in the congested urban areas. This often leads to additional traffic. As part of ITS deployment in China, parking guidance system is drawing attention for alleviating congestion. Considering the existing traffic management measures, the schematic of integrating advanced parking guidance and information system into urban traffic flow guidance system is put forward in the first part of this paper. The rest of this paper deals with the key technologies for improving the efficiency of parking guidance system such as information, routing, toll collection by using dedicated short range communications, communication technology in the mobile environment, prediction method of available parking spaces, etc. The last section provides some suggestions that future study needs.","PeriodicalId":123155,"journal":{"name":"Proceedings of the 2003 IEEE International Conference on Intelligent Transportation Systems","volume":"168 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121227803","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}
Pub Date : 2003-12-19DOI: 10.1109/ITSC.2003.1252728
R. Song, Shiwei He, T. Eastham
In this paper, new headway models are established by analyzing the more complex operations happening in a long-distance corridor line of the transrapid super-speed maglev system (TSMS). The variation law in the minimum allowable trains headway is analyzed. The headway results could be used for analyzing the carrying capacity and doing operational design of super-speed maglev systems for long distance line.
{"title":"Study on train headway models for super-speed maglev system","authors":"R. Song, Shiwei He, T. Eastham","doi":"10.1109/ITSC.2003.1252728","DOIUrl":"https://doi.org/10.1109/ITSC.2003.1252728","url":null,"abstract":"In this paper, new headway models are established by analyzing the more complex operations happening in a long-distance corridor line of the transrapid super-speed maglev system (TSMS). The variation law in the minimum allowable trains headway is analyzed. The headway results could be used for analyzing the carrying capacity and doing operational design of super-speed maglev systems for long distance line.","PeriodicalId":123155,"journal":{"name":"Proceedings of the 2003 IEEE International Conference on Intelligent Transportation Systems","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128972861","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}
Pub Date : 2003-12-19DOI: 10.1109/ITSC.2003.1252623
G. Qin, A. Ge, Fei-Yue Wang
The paper details an analytical redundancy fault diagnosis method of automated mechanical transmission (AMT) control system. After concisely introducing the models of engine, gear box and clutch, which are used to provide redundant information, the diagnostic logic is illustrated in detail. The information redundancy in the local models of the power train and the structure logic relations among the assemblages is used to detect and diagnose the faults of the sensors, the actuators and the unit assemblages of the AMT system. The fault codes and fault process measures are listed out.
{"title":"On-board fault diagnosis system of automated manual transmission control system","authors":"G. Qin, A. Ge, Fei-Yue Wang","doi":"10.1109/ITSC.2003.1252623","DOIUrl":"https://doi.org/10.1109/ITSC.2003.1252623","url":null,"abstract":"The paper details an analytical redundancy fault diagnosis method of automated mechanical transmission (AMT) control system. After concisely introducing the models of engine, gear box and clutch, which are used to provide redundant information, the diagnostic logic is illustrated in detail. The information redundancy in the local models of the power train and the structure logic relations among the assemblages is used to detect and diagnose the faults of the sensors, the actuators and the unit assemblages of the AMT system. The fault codes and fault process measures are listed out.","PeriodicalId":123155,"journal":{"name":"Proceedings of the 2003 IEEE International Conference on Intelligent Transportation Systems","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133584335","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}
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