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Vehicle Navigation and Information Systems Conference, 1989. Conference Record

Date 11-13 Sept. 1989

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Displaying Results 1 - 25 of 95
  • Vehicle location for route guidance

    Publication Year: 1989, Page(s):11 - 16
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (415 KB)

    The state of the art of the key technology areas associated with vehicle location for in-vehicle route guidance is assessed. The current and expected performance of available systems is compared with the wide range of operating requirements, supported by practical examples where possible. Consideration is also given to the costs associated with each system. Results are presented on the satellite, ... View full abstract»

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  • Evaluation of system components for mobile navigation applications

    Publication Year: 1989, Page(s):17 - 21
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (390 KB)

    A concept for the evaluation of navigation components with known system requirements and limitations makes use of modern structured analysis and design methods so that the requirements can be connected easily to efficient realizations. Design is divided into phases, each supported by and checked according to the previous phases or requirements. This method involves stepwise modeling of the applica... View full abstract»

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  • A comparative analysis of Loran-C and GPS for land vehicle navigation in Canada

    Publication Year: 1989
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (40 KB)

    Summary form only given. Loran-C, to be completed in 1990, is expected to provide coast-to-coast coverage over an area containing some 90% of Canada's population, while the Global Positioning System is expected to provide worldwide navigation coverage by 1992. The fundamental signal propagation and measurement characteristics of the 100 kHz Loran-C and 1575.42 MHz GPS systems are described, togeth... View full abstract»

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  • Evaluation of map-matching techniques

    Publication Year: 1989, Page(s):23 - 28
    Cited by:  Papers (6)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    The authors describe a research and demonstration effort aimed at improving vehicular location accuracy. This effort used a wheel sensor, a gas-rate gyro, a map-matching technique, and beacon information to reduce accumulated errors. The demonstration model showed good location accuracy results in field tests over three courses (one was in an urban area, 10 km in length, while the others were in a... View full abstract»

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  • Multimodal navigation technology assessment

    Publication Year: 1989, Page(s):29 - 32
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB)

    The trends of specific technologies and their likely impact on navigation systems used in transportation during the next 25 years are described. Particular emphasis is placed on the Canadian situation. The research will contribute to Transport Canada objectives of exploring strategic technologies, fostering transportation research at universities, and promoting dialogue on long-term transportation... View full abstract»

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  • Human factor considerations of motorist navigation and information systems

    Publication Year: 1989, Page(s):35 - 42
    Cited by:  Papers (7)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (774 KB)

    A number of important considerations are identified, and information on how they are being addressed by the Administration is presented. Seven basic human factors-related questions are used as a conceptual framework for identifying these considerations, and for describing how they might be addressed. These are: (1) Why do drivers need navigation information? (2) What information do they need? (3) ... View full abstract»

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  • The nature of navigation: some difficult cognitive issues in automatic vehicle navigation

    Publication Year: 1989, Page(s):43 - 48
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (553 KB)

    The author seeks to demonstrate that finding one's way from place to place while driving a car is a complex cognitive task, and that authentic computer-based assistance to drivers must come from devices and systems significantly different from the digital dashboard maps hitherto offered. She discusses the appropriate uses of electronic maps, the map as a way-finding tool, and roles for the compute... View full abstract»

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  • Intelligent route guidance: will the new horse be as good as the old?

    Publication Year: 1989, Page(s):49 - 55
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (796 KB)

    The human factors of intelligent automobile displays were investigated with emphasis on determining the need for design guidelines. The experiment was designed to examine the relationship between drivers' visual attention and performance under concurrent multitask conditions. Twenty young male and female students with normal vision and a minimum of three years' driving experience were assigned ran... View full abstract»

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  • Simple in-car route guidance information from another perspective: modality versus coding

    Publication Year: 1989, Page(s):56 - 60
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (463 KB)

    A previous field study concerning electronic navigation aids showed the advantage, in terms of navigational errors, of auditory presentation of route guidance instructions as compared with visual instructions (see W.B. Verwey and W.H. Janssen, VTI Report No.342A, p.81-97 of 1988). In the present work, an experiment that tries to approach the issue of optimal route instructions in a more controlled... View full abstract»

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  • Analysis of aging drivers' behaviors navigating with in-vehicle visual display systems

    Publication Year: 1989, Page(s):61 - 67
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (387 KB)

    A study was conducted to analyze the behavioral and visual strategies of drivers observed through videotape recordings which took into account subject gaze movements and field of view. Driver performance was evaluated in terms of the total time from starting point to destination and the number of navigational errors. Analysis showed that aging drivers modified their visual strategies under guidanc... View full abstract»

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  • The experience of developing and providing driver route information systems

    Publication Year: 1989, Page(s):71 - 75
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (469 KB)

    The authors relate their experience in developing several such systems over a period of 10 years. They were concerned first with improving the information given on direction signs; this was followed by the development of systems for providing route information for individual journeys. Subsequently these developed into an autonomous in-vehicle route guidance system, and systems which have allowed a... View full abstract»

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  • Considerations for the application of a route guidance system in the Greater Toronto Area

    Publication Year: 1989, Page(s):76 - 83
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (700 KB)

    The feasibility of applying a route guidance system of the Q-route type is examined, and some system design aspects that one would have to consider before embarking on such a project are explored. The need for a comprehensive system that can deal consistently with all different types of dissemination media is emphasized. The development of a Central Traffic Information Clearance Center is proposed... View full abstract»

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  • Information systems: an integral part of future vehicles

    Publication Year: 1989, Page(s):85 - 88
    Cited by:  Papers (1)  |  Patents (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (406 KB)

    It is suggested that the driving experience might be improved by information brought on-board by compact disc and transmitted to and from the vehicle through appropriate communication links. Three possible feature sets-cellular telephone enhancements, travel assistance, and business/professional-are suggested. Several travel assistance features are offered as solutions to anticipated traffic conge... View full abstract»

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  • Surveying commuter behavior as a basis for designing motorist information systems

    Publication Year: 1989, Page(s):93 - 100
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (879 KB)

    A motorist information survey was conducted by University investigators as part of a project sponsored by the Washington State Department of Transportation and the Federal Highway Administration. This survey gathered information about motorist activities and behaviors, particularly the potential for changing these behaviors through the design and delivery of motorist information. Of particular int... View full abstract»

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  • Information requirements for real-time motorist information systems

    Publication Year: 1989, Page(s):101 - 104
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    A motorist information survey (ibid., p.93-100) has identified Seattle commuter types, behaviors and decision-making processes. This information can be used to design motorist information systems intended to impact and modify commuter behavior by increasing the efficiency with which existing transportation facilities are used. Central to the design of these systems is the targeting of susceptible ... View full abstract»

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  • The ADVISE traffic information display system

    Publication Year: 1989, Page(s):105 - 112
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (673 KB)

    The City of Melbourne has a new experimental system which helps the motorist's progress through a sequence of traffic lights, reducing the number of stops, saving fuel, and promoting a safe and vigilant approach to driving. After 18 months of ADVISE operation, the number of accidents and tow-truck calls has fallen. The development of the ADVISE system is outlined, and a performance analysis is pre... View full abstract»

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  • User perceptions and safety implications of in-vehicle navigation systems

    Publication Year: 1989, Page(s):113 - 116
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (359 KB)

    Researchers at the University are engaged in two projects related to the testing of in-vehicle navigation systems. One project is concerned with the interrelationship between the given route guidance information, the driver's belief or anticipation, and the route choice made by the driver. Additionally, the impact of alternative route guidance schemes (information content and the format of informa... View full abstract»

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  • Architectures for in-vehicle navigation systems displaying real time traffic condition information

    Publication Year: 1989, Page(s):119 - 124
    Cited by:  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (342 KB)

    A number of dynamic in-vehicle navigation and route guidance system architectures are described and their properties classified. Five typical architectures for exogenous systems, and three endogenous system architectures are described. The functional capability and design complexity of exogenous systems are shown to vary over a wide range. These systems depend on basic external information sources... View full abstract»

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  • AVLN 2000 automatic vehicle location and navigation system

    Publication Year: 1989, Page(s):126 - 130
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (342 KB)

    This prototype system is being tested at the University. The positioning component consists of a GPS Trimble TANS (Trimble Advanced Navigation System) receiver, a pair of Nu-Metrics odometers, and a map-matching module, all integrated by a seven-parameter state vector Kalman filter to yield continuous positioning of the vehicle. An on-board GRiDCase EXP microcomputer is used for real-time computat... View full abstract»

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  • Recognition of vehicle's location for navigation

    Publication Year: 1989, Page(s):131 - 138
    Cited by:  Papers (7)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (653 KB)

    The use of signpost navigation, map-matching, and satellite navigation as methods for correcting the accumulated errors of dead-reckoning is described. Also considered are ways to obtain accurate and continuous car location by combining those methods with dead-reckoning. The merits, demerits and feasibility of each method are discussed. It is confirmed that accurate and continuous car location is ... View full abstract»

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  • Automobile navigation system using beacon information

    Publication Year: 1989, Page(s):139 - 145
    Cited by:  Papers (13)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (611 KB)

    A navigation and communication system utilizing roadside beacons is under development. The functions and infrastructure of the Road/Automobile Communication System are outlined, the in-vehicle equipment is described and the results of field tests conducted in the Tokyo/Yokohama area are reported. The system provides the driver with such information as present location and traffic conditions, plots... View full abstract»

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  • The Back Seat Driver: real time spoken driving instructions

    Publication Year: 1989, Page(s):146 - 150
    Cited by:  Papers (1)  |  Patents (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (468 KB)

    An automobile navigation aid that uses synthetic speech to give instruction to the driver of a car in real time is described. The advantage of speech is that it leaves the driver's eyes free for driving; however, it also poses special problems. The strategies employed by the Back Seat Driver to use speech successfully are described. The linguistic abilities are discussed, and the problems encounte... View full abstract»

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  • Test results of a precise, short range, RF navigational/positional system

    Publication Year: 1989, Page(s):151 - 155
    Cited by:  Papers (4)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (438 KB)

    A navigational system that has a range of several miles and an accuracy of several inches has been developed at the University. Several positions are calculated every second and the system can be used for navigating vehicles or for finding positions. The system achieves a fix by measuring the range to two or three stationary beacons, and is classified as a range/range system. A description is give... View full abstract»

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  • Radionavigation/location requirements for surface users in Canada: present and forecasted equipment uses

    Publication Year: 1989
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (50 KB)

    Summary form only given, as follows. The authors estimate the present extent of uses of radionavigation/location equipment and forecast the extent of use by the year 2000. Systems included in this report were grouped into three major types: active satellite systems represented by the GEOSTAR example; passive satellite systems represented by the Global Positioning System example; and ground based s... View full abstract»

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  • GeoRoute: an interactive graphics system for routeing and scheduling over street networks

    Publication Year: 1989, Page(s):161 - 163
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (221 KB)

    The system components, computer configuration, and databases of a multi-purpose graphical tool for applications requiring a network representation of streets in urban and rural areas are described. The underlying data structure is adapted to routeing and scheduling problems for various types of delivery and public works vehicles requiring information about street-to-street connectivity, one-way st... View full abstract»

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