intelligent trasportation system

Upload: david-fan

Post on 07-Apr-2018

214 views

Category:

Documents


0 download

TRANSCRIPT

  • 8/6/2019 Intelligent Trasportation System

    1/1

    TechnologyFrom a central location, the traffic management center (TMC),authorities are able to monitortraffic and weather conditions

    from CCTV cameras installed at various locations in and

    around the city. Information gathered at the TMC is shared

    with other agencies and cities in a region to manage traffic

    more effectively. The traveling public is informed about

    potential problem areas by dynamic message signs and

    hazard advisory radio systems along the roadway and

    emergency service response times are reduced by knowing

    more about the location and conditions surrounding an

    incident requiring emergency service.

    ChallengesNetwork equipment are installed in an outdoor cabinets closeby the roadways. Regular network products simply cannot

    handle outdoor temperature and harsh conditions such as

    unpredictable humidity as well as electrical and electo-

    magnetic interference. Equipment must be mounted in field

    cabinets, with limited space and operate in the harsh outdoor

    environment without fans.

    Placentia, CA USA anyone who lives in a major metropolitan area and commutes to work knows the roadways are extremely

    crowded and getting more so every day, during morning and evening commute time. While the obvious solution is to build more

    and larger roadways to accommodate more automobiles, many localities have recognized that there are technological solutions

    that can complement or supplement the traditional project of adding or widening roadways. Another solution is to use Advanced

    Technology Management Systems to monitor and manage traffic congestion more efficiently. Traffic management systems, today,

    include traffic light controllers with inputs from various types of vehicle detectors (such as video, radar and magnetic), video

    surveillance systems, dynamic message signs and other systems to measure traffic flow and inform the driving public about hot

    spots. These systems are designed to allow traffic engineers and emergency personnel to monitor traffic flowand predict trouble

    spots before they become trouble spots.

    Traffic management systems, today, include traffic light controllers, video surveillance,

    dynamic message signs and other systems to measure traffic flow and congestion and

    inform the driving public about hot spots.

    SolutionsEtherWANs products are designed for hardened and heavy dutyapplications suitable for outdooror extreme environments. The

    SE6101 converters traffic light signals from serial mode to Ethernet.

    The EX71000 is featured with EtherWANs proprietary -ring

    supporting recovery time less than 15ms. The EX71000 switches

    form a ring architecture with the EX77000 sitting closer to a

    centralized traffic management office. These switches create a

    redundant network system that is critical to traffic control city wide.

    EX71000

    Hardened Managed 6 to 8 ports 10/100BASE Fast Ethernet with

    up to 2-port Gigabit Ethernet Switch

    5 6

    Intelligent Transportation Systems

    Product Selections

    1

    SE6101

    Hardened 1-port Serial Device Server

    2

    EX77000

    Hardened Managed 24-port 10/100BASE Fast Ethernet

    up to 4-port Gigabit Ethernet Switch

    3

    TransRack

    Rackmont kit for Din-rail Devices

    4

    16261626

    1626

    713

    713

    Vehicle Detection

    UL508-RINGITS