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  • Congestion Performance Measures Using ITS Information

    The objective of this paper is to define a performance measure(s) that can be used to show congestion levels on critical corridors throughout Virginia and develop a general methodology to select and calculate performance measures in order to quantify congestion in a transportation system. These measures can be interpreted to provide benchmarks or base values of congestion to provide a means for measuring change in the performance of the highway system.

    University of Virginia

  • Common Automotive Navigation System Usability Problems and a Standard Test Protocol to Identify Them

    Although there has been considerable research on in-vehicle navigation systems, many safety and usability problems re-occur in system after system, even in systems that have been subjected to some sort of safety or human factors evaluation. This paper describes those problems and a test protocol to identify them.

    The test protocol, developed as part of the process of evaluating the four systems, consists of two parts. The first part concentrates on the control layout, destination entry, and other tasks performed while the vehicle is parked. The second part concentrates on the route guidance while the vehicle is in motion. Both parts of the protocol rely on verifying compliance with human factors principles as determined by experts (heuristic evaluation) as well as data from carefully chosen test subjects using the system.

    University of California, Berkeley

    University of Michigan Transportation Research Institute (UMTRI)

    Presented at the ITS America Annual Conference and Exposition, May 19-22, 2003 Minneapolis, Minnesota

  • The City of Austin Texas Signal System Upgrade Project

    The City of Austin Traffic Control System is one of the newest and most advanced traffic management systems in the country. The design of the system is highly scaleable and uses commercial off-the-shelf (COTS) hardware. The system was designed to meet the needs of the users, which was to provide real-time video and data information for the timely response to the traffic management requirements of the urban surface roadway network in the City of Austin.

    This paper presents a discussion of the design criteria and system architecture of the project followed by a description of some of the equipment that makes up the system and concludes with a discussion of the benefits seen as a result of the implementation of the system. As a result of the implementation of this system, the City of Austin has seen a noticeable reduction in the time it takes to respond to traffic signal trouble calls. In addition, the system has provided a means to implement or improve traffic signal synchronization on the City’s arterial corridors.

    Siemens ITS

    Gardner Consulting Group (Gardner Transportation Systems)

    City of Austin, Texas

    Presented at the ITS America Annual Conference and Exposition, May 19-22, 2003 Minneapolis, Minnesota

  • The ATM IDEAS Project: Second Generation TMC Development

    The acronym for MTA Bridges & Tunnels’ Advanced Traffic Management Incident Detect/Evaluate/Act System, ATM IDEAS, is true for the deployment project as well. Awarded as a design-furnish-install-test-maintain contract to Transdyn Controls, Inc., with Dunn Engineering Associates, PC, providing administrative and quality assurance services, the $12M project is using Internet-enhanced weekly teleconferences, status reporting and project management tools, and file sharing. In emulation of open-source code development, modular software development is contractually viewable by the sponsoring agency from the beginning, and paired with written documentation standards, continuous configuration management and complete off-site modular testing prior to deployment. Other project innovations include statistical task analyses based on two 24-hour observations of real TMC operations, a rapid-prototyping mock-up for user feedback and human factors analysis, the use of GIS field device configuration data, effective integration of varying audio and video sources, and the use of electronic white boarding techniques. Planned for simultaneous deployment in 2004 in the Authority’s eleven existing TMCs and a new centralized coordinating virtual TMC, the ATM IDEAS project is an early example of second-generation TMC systems engineering and software development techniques.

    Metropolitan Transit Authority (MTA) Bridges and Tunnels

    Presented at the ITS America Annual Conference and Exposition, May 19-22, 2003 Minneapolis, Minnesota

  • Assessment of Advanced Traveler Information Systems at the 2002 Winter Olympic Games

    This paper reports on the performance of advanced traveler information systems (ATIS)during the 2002 Salt Lake CityWinter Olympic Games. This was the first Olympics in the United States with an established Intelligent Transportation System (ITS) deployment in full operation, and the Salt Lake City ITS installation was among the most comprehensive in the nation. This paper presents excerpts from a larger study, commissioned by Utah Department of Transportation (UDOT) and the Federal Highway Administration. The purpose of that larger study was to document and assess the performance of the UDOT advanced traffic management system (ATMS) and advanced traveler information system (ATIS) during the Olympic Games. An additional purpose was to document and assess the results of the Travel Demand Management program created and implemented for the Olympic Games. This paper presents some of the traveler information findings from that larger study, specifically regarding the CommuterLink Website and the 5-1-1 Telephone Service.

     Iteris, Inc.

    Presented at the ITS America Annual Conference and Exposition, May 19-22, 2003 Minneapolis, Minnesota

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