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Proceedings of VNIS '93 - Vehicle Navigation and Information Systems Conference最新文献

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Application of an on-line procedure for estimating capacity under prevailing roadway and traffic conditions 在现行道路和交通条件下估计通行能力的在线程序的应用
Proceedings of VNIS '93 - Vehicle Navigation and Information Systems Conference Pub Date : 1993-10-12 DOI: 10.1109/VNIS.1993.585609
B. van Arem, M. J. van der Vlist, S. Smulders
{"title":"Application of an on-line procedure for estimating capacity under prevailing roadway and traffic conditions","authors":"B. van Arem, M. J. van der Vlist, S. Smulders","doi":"10.1109/VNIS.1993.585609","DOIUrl":"https://doi.org/10.1109/VNIS.1993.585609","url":null,"abstract":"The development and offline testing of a procedure for estimating the current capacity at a motorway carriageway are described. The procedure is specifically aimed at estimating capacity while the traffic is still free-flowing. It is based on the combination of an online estimate of the current fundamental diagram, and the maximal occupancy of a loop detector that may be achieved at a carriageway under free-flowing conditions. Suitable representations for the fundamental diagram and the maximal occupancy are based on investigations using a large set of data. The online procedure itself is developed and tested for different sets of weather condition. Good responses of the procedure to changing weather conditions (dry/wet) have been obtained. It is concluded that the procedure offers promising perspectives for eventual application in dynamic traffic management systems. Suggestions for future research are given.","PeriodicalId":185945,"journal":{"name":"Proceedings of VNIS '93 - Vehicle Navigation and Information Systems Conference","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134605912","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: 5
Current status and future plans for digital map databases in Japan 日本数字地图数据库的现状和未来计划
Proceedings of VNIS '93 - Vehicle Navigation and Information Systems Conference Pub Date : 1993-10-12 DOI: 10.1109/VNIS.1993.585577
M. Shibata, Y. Fujita
{"title":"Current status and future plans for digital map databases in Japan","authors":"M. Shibata, Y. Fujita","doi":"10.1109/VNIS.1993.585577","DOIUrl":"https://doi.org/10.1109/VNIS.1993.585577","url":null,"abstract":"The Japan Digital Road Map Association (JDRMA) was founded to establish the standards for digital road map (DRM) and to produce a DRM database in Japan. The JDRMA is now in the process of refining the database using 1/25,000 scale topographical maps. The JDRMA supplies users with an updated version of the database every year. Car navigation is currently the largest application of DRM. Police departments, fire departments, ambulance services, and taxi companies use location systems that use DRM. Significant application of DRM is expected to come in the future in the planning and research fields. Road sign checking system, traffic accident analysis system, road census reference system and logistics system are now being studied. As the applications expand, more advanced DRMs must be made available, To meet this requirement, development of more detailed and precise DRMs and linkage to dynamic information systems is being pursued.","PeriodicalId":185945,"journal":{"name":"Proceedings of VNIS '93 - Vehicle Navigation and Information Systems Conference","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116226283","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
DGPS broadcasts using the Radio Broadcast System (RBDS) for IVHS DGPS使用IVHS的无线电广播系统(RBDS)进行广播
Proceedings of VNIS '93 - Vehicle Navigation and Information Systems Conference Pub Date : 1993-10-12 DOI: 10.1109/VNIS.1993.585639
M. Sushko
{"title":"DGPS broadcasts using the Radio Broadcast System (RBDS) for IVHS","authors":"M. Sushko","doi":"10.1109/VNIS.1993.585639","DOIUrl":"https://doi.org/10.1109/VNIS.1993.585639","url":null,"abstract":"The Global Positioning System (GPS) is the primary choice in intelligent vehicle highway systems (IVHS) for vehicle location monitoring. The use of GPS technology in the autonomous mode is not accurate enough in urban environments. The major problem in vehicle location monitoring has been providing some form of efficient digital GPS (DGPS) correction broadcast. A cost effective solution to providing DGPS corrections for IVHS uses the new Radio Broadcast Data Standard (RBDS). The standard defines the broadcast format for transmitting data over existing FM radio station subcarriers.","PeriodicalId":185945,"journal":{"name":"Proceedings of VNIS '93 - Vehicle Navigation and Information Systems Conference","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116792285","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: 0
Development and evaluation of the Trafficmaster driver information system Trafficmaster驾驶员信息系统的开发与评价
Proceedings of VNIS '93 - Vehicle Navigation and Information Systems Conference Pub Date : 1993-10-12 DOI: 10.1109/VNIS.1993.585627
A. Stevens, D. Martell
{"title":"Development and evaluation of the Trafficmaster driver information system","authors":"A. Stevens, D. Martell","doi":"10.1109/VNIS.1993.585627","DOIUrl":"https://doi.org/10.1109/VNIS.1993.585627","url":null,"abstract":"Trafficmaster is a commercially available congestion warning device operating in Southern England. A detailed assessment of the traffic and safety implications of the Trafficmaster system has been conducted. Techniques used include modeling, analysis of traffic statistics, questionnaires and driver logs, laboratory comprehension experiments, driving simulator studies and field trials. The network implications and network safety impacts were found to be small but some safety concerns were raised associated with distraction caused by the display. Traffic information provided by the system was found to have a number of potential beneficial uses for network management purposes.","PeriodicalId":185945,"journal":{"name":"Proceedings of VNIS '93 - Vehicle Navigation and Information Systems Conference","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121436554","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: 5
A solution for a transparent GSM retransmission system into confined areas 一种用于封闭区域的透明GSM重传系统的解决方案
Proceedings of VNIS '93 - Vehicle Navigation and Information Systems Conference Pub Date : 1993-10-12 DOI: 10.1109/VNIS.1993.585634
M. Berbineau, M. Szelag, M. Klingler, S. Baranowski
{"title":"A solution for a transparent GSM retransmission system into confined areas","authors":"M. Berbineau, M. Szelag, M. Klingler, S. Baranowski","doi":"10.1109/VNIS.1993.585634","DOIUrl":"https://doi.org/10.1109/VNIS.1993.585634","url":null,"abstract":"Radio cellular systems depend upon the widespread availability of two-way communications between vehicles and control centers. Radio propagation inside tunnels and urban radioelectric shadowed areas is disturbed with strong attenuation, multipath, waveguide and masking effects. Special care must be taken to avoid communication failure in road transport informatics (RTI) applications based on the radio frequency system in those specific areas. To achieve the extension of the RTI road-vehicle digital communication systems to the coverage of confined areas, specific electronic and electromagnetic problems must be solved. Elements are given to realize a pan-European GSM (Global System for Mobile communications) radiating retransmission system in those confined areas.","PeriodicalId":185945,"journal":{"name":"Proceedings of VNIS '93 - Vehicle Navigation and Information Systems Conference","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123213677","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: 1
VIASAT - A mobile highway survey system of high accuracy VIASAT -高精度的移动公路测量系统
Proceedings of VNIS '93 - Vehicle Navigation and Information Systems Conference Pub Date : 1993-10-12 DOI: 10.1109/VNIS.1993.585676
K. Schwarz, H. Martell, N. El-Sheimy, R. Li, M. Chapman, D. Cosandier
{"title":"VIASAT - A mobile highway survey system of high accuracy","authors":"K. Schwarz, H. Martell, N. El-Sheimy, R. Li, M. Chapman, D. Cosandier","doi":"10.1109/VNIS.1993.585676","DOIUrl":"https://doi.org/10.1109/VNIS.1993.585676","url":null,"abstract":"The prototype development of VIASAT, a precise mobile survey system for road inventory and associated GIS applications, is discussed. The system integrates inertial, satellite, and charge coupled device (CCD) camera technology to achieve an overall positioning accuracy of 0.3 m (1 ft) or better for all objects within a 50 m corridor on both sides of a highway. Combining the high positioning accuracy of Global Positioning System (GPS) with the precise pointing accuracy of inertial navigation system (INS) a cluster of CCD cameras will be accurately positioned and oriented at any instant of time. Using this information, objects along the highway can be precisely surveyed in three dimensions by processing the digital image information of the CCD camera cluster. The system concepts are discussed. Special emphasis is given to sensor integration, testing of the INS/GPS component and data flow from the acquisition process to the workstation environment.","PeriodicalId":185945,"journal":{"name":"Proceedings of VNIS '93 - Vehicle Navigation and Information Systems Conference","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117316292","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: 54
Accuracy of traffic monitoring equipment field tests 交通监控设备现场试验的准确性
Proceedings of VNIS '93 - Vehicle Navigation and Information Systems Conference Pub Date : 1993-10-12 DOI: 10.1109/VNIS.1993.585602
B. Harvey, G. Champion, R. Deaver
{"title":"Accuracy of traffic monitoring equipment field tests","authors":"B. Harvey, G. Champion, R. Deaver","doi":"10.1109/VNIS.1993.585602","DOIUrl":"https://doi.org/10.1109/VNIS.1993.585602","url":null,"abstract":"The tests being performed by the Georgia Tech Research Institute and the Georgia Department of Transportation are described. The object of these tests is to determine the adequacy of vehicle counting devices, the adequacy of equipment to correctly sort vehicles into the 13 FWHA vehicle classes, the adequacy of automatic measurement of overall vehicle length, the effects of vehicle and axle sensor technology on the accuracy of the vehicle classification, and the effects of vehicle repetitions and weather on pneumatic tube (and other) axle sensors.","PeriodicalId":185945,"journal":{"name":"Proceedings of VNIS '93 - Vehicle Navigation and Information Systems Conference","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131193566","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: 18
The implementation of an AVL/M system River City, KY: one transit property's actual experience 一个AVL/M系统的实施河城，肯塔基州:一个交通物业的实际经验
Proceedings of VNIS '93 - Vehicle Navigation and Information Systems Conference Pub Date : 1993-10-12 DOI: 10.1109/VNIS.1993.585702
W. D. Mason
{"title":"The implementation of an AVL/M system River City, KY: one transit property's actual experience","authors":"W. D. Mason","doi":"10.1109/VNIS.1993.585702","DOIUrl":"https://doi.org/10.1109/VNIS.1993.585702","url":null,"abstract":"The Transit Authority of River City (TARC) is a system of 312 vehicles serving the metropolitan community of Louisville, Kentucky. Given the changing nature of public transportation, a need has arisen for more efficient operations. It has been decided that by incorporating direct fleet monitoring, TARC management decisions could be made from online computer generated reports. The author reports on the selection of an AVL/M system designer, an AVL/M feasibility study, the signpost/odometer system, file interface definitions, system design software and signpost transmitters.","PeriodicalId":185945,"journal":{"name":"Proceedings of VNIS '93 - Vehicle Navigation and Information Systems Conference","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124537804","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: 0
An autonomous vehicle with fuzzy logic navigational control 一种具有模糊逻辑导航控制的自动驾驶汽车
Proceedings of VNIS '93 - Vehicle Navigation and Information Systems Conference Pub Date : 1993-10-12 DOI: 10.1109/VNIS.1993.585678
H. Northfield, A. Sheikh
{"title":"An autonomous vehicle with fuzzy logic navigational control","authors":"H. Northfield, A. Sheikh","doi":"10.1109/VNIS.1993.585678","DOIUrl":"https://doi.org/10.1109/VNIS.1993.585678","url":null,"abstract":"The design and construction of an autonomous vehicle with fuzzy logic navigational control are described. The design incorporates a 16-bit, on board Motorola's MC68HC16Z1 microcontroller to coordinate the vehicle operations. Fuzzy logic is used in conjunction with the controlling software for steering and guidance. The optical guidance follows a UV sensitive track on which position information is encoded. Steering is performed through timing pulses from the microcontroller to a stepper motor connected to a home designed steering mechanism. The vehicle may be ordered to a chosen location by a remote handheld transmitter using frequency shift keyed data transmission on a radio link. The remote unit incorporates logic cell array (LCA) supporting circuitry. Track obstruction is detected by a front end infrared detection unit and a touch sensitive bumper.","PeriodicalId":185945,"journal":{"name":"Proceedings of VNIS '93 - Vehicle Navigation and Information Systems Conference","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121728754","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
GPS/dead reckoning for vehicle tracking in the "urban canyon" environment GPS/航位推算用于“城市峡谷”环境下的车辆跟踪
Proceedings of VNIS '93 - Vehicle Navigation and Information Systems Conference Pub Date : 1993-10-12 DOI: 10.1109/VNIS.1993.585671
C. Vicek, P. Mclain, M. Murphy
{"title":"GPS/dead reckoning for vehicle tracking in the \"urban canyon\" environment","authors":"C. Vicek, P. Mclain, M. Murphy","doi":"10.1109/VNIS.1993.585671","DOIUrl":"https://doi.org/10.1109/VNIS.1993.585671","url":null,"abstract":"Urban areas provide unique problems for Global Positioning System (GPS)-only vehicle location systems. GPS-only propagation can only be used over short intervals. To combat these problems, a dead reckoning capability is added to a GPS sensor. The system uses a low-cost vibrational gyro. The vehicle's odometer output combines with GPS to provide an accurate, robust positioning system for urban environments. The system performs well in harsh urban environments.","PeriodicalId":185945,"journal":{"name":"Proceedings of VNIS '93 - Vehicle Navigation and Information Systems Conference","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116852468","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: 39
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