Commercial Operations

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  • SCOOT Improvement Project and Measures of Effect in Beijing

    With the rapid growth of the motor vehicles in Beijing, the traffic jam situation is
    aggravated constantly. The function of SCOOT traffic signal control system has not
    gradually adapted to the actual traffic demand. After analyzing and researching the
    current situation and problems of existing SCOOT systematic operation in Beijing,
    the construction objects are put forward according to the traffic characteristics and
    system control characteristics within Second Ring Road in Beijing. Through choices
    of investigating route and intersections and investigating date and by using the
    method of before and after, a good effect is got and The operation status of the traffic
    has got very great improvement after the system was implemented, demonstrating the
    SCOOT system superiority of the single point control.

    University of Technology, Beijing, China


    Presented at the 12th World Congress on Intelligent Transport Systems,
    November 6-10, 2005, San Francisco, California

  • Breathing Life into OEM Telematics Opportunities

    As the consumer-specific telematics market shows new signs of life, companies in the
    telecommunications and electronics industries are aggressively developing portable telematics
    capabilities that link with existing devices. Left behind are the automotive OEMs and their
    efforts to embed telematics devices in the dashboards of their cars. The relative merits of
    embedded versus portable devices are examined and, using survey data on consumer
    ownership of various communications devices from SRIC-BI’s Consumer Financial Decisions
    proprietary database, this paper investigates OEM opportunities to move forward in the
    telematics market. Given the distinctive assets of the vehicle platform, OEMs are in a position
    to provide effective interfaces for portable devices, extend the devices’ abilities, and improve
    driver interaction with them. Such an approach is in concert with the direction consumers are
    moving, not only in telematics but in communications and information technologies as well,
    and establishes a unique position for OEMs vis-à-vis other product offerings.

    SRIC-BI, USA

    SRI International, USA


    Presented at the 12th World Congress on Intelligent Transport Systems,
    November 6-10, 2005, San Francisco, California

  • Dynamic congestion pricing in a network with queue spillover

    A combination of two dynamic models is presented to explore optimal congestion pricing in a
    multi-destination network. Vickrey’s bottleneck model (1) deals with traffic demand while
    traffic operations are described by the LWR traffic flow model (Lighthill and Whitham, 2 and
    Richards, 3). The proposed combined LWR bottleneck model determines both user
    equilibrium and system optimum network conditions. It provides some surprising insights in
    the mechanisms of congestion. Congestion may be avoided by imposing an optimal dynamic
    toll. This has a significant positive impact on the performance of a network. A paradox
    appears where an optimal toll even lowers total trip costs and increases traffic demand,
    without introducing congestion. Analysis with the combined LWR bottleneck model shows
    that congestion pricing can be even more beneficial than accepted until now.

    Katholieke Universiteit Leuven, Belgium

    Transport & Mobility Leuven, Belgium


    Presented at the 12th World Congress on Intelligent Transport Systems,
    November 6-10, 2005, San Francisco, California

  • Experiences With An Operational Pilot Of Personalised Information Services To Public Transport

    At present, online information services particularly serve the requirements of occasional users
    who want to spontaneously get to know what is on offer regarding public transport. Fig. 1
    gives an impression of the operational effort required for receiving a current departure time
    from a WAP mobile phone. This form of providing information is however less attractive for
    the majority of commuters. These passengers are familiar with the timetable and usually only
    wish to know whether their connection is on time. The daily retrieval of information is
    therefore in this case not a practical solution. On the other hand, there are passengers who are
    strongly affected by changes to the normal timetable, especially those who have to travel with
    infrequent trains, or those whose missing connection could amount to enormous costs
    (connected flights) as well as those who use public transport daily.

    Institut f. Automation und Kommunikation Magdeburg


    Presented at the 12th World Congress on Intelligent Transport Systems,
    November 6-10, 2005, San Francisco, California

  • The Control Of Traffic Using Variable Speed Limits The Uk Experience Of Controlled Motorways

    This paper describes the work that has been undertaken to establish the business case for Controlled
    Motorways. Since the introduction of the Controlled Motorways on the M25 in 1995, the Highways
    Agency (HA) has commissioned a number of studies to optimise system performance and to quantify
    the impact of the system with the aim of establishing the business case for implementation and
    developing guidelines for future roll-out. This paper provides a summary of the work undertaken and
    the key results from the M25 Controlled Motorways studies. It also describes work to develop a
    Generic Business Case for investment in Controlled Motorways and the development of an
    Assessment Tool which can be used to prioritise between alternative sites.

    MOUCHEL PARKMAN

    HIGHWAYS AGENCY

    FABER MAUNSELL

    TRL


    Presented at the 12th World Congress on Intelligent Transport Systems,
    November 6-10, 2005, San Francisco, California

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