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Decision Support Needs for Transportation Systems

Decision Support Needs for Transportation Systems. December 5, 2000. Emil Wolanin Montgomery County, Maryland. Effects of Weather on Transportation:. Congestion (Roads & Intersections) Transit Delays Safety Conditions (fog, heavy downpours, etc.) Damage to traffic control equipment

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Decision Support Needs for Transportation Systems

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  1. Decision Support Needs for Transportation Systems December 5, 2000 Emil Wolanin Montgomery County, Maryland

  2. Effects of Weather on Transportation: • Congestion (Roads & Intersections) • Transit Delays • Safety • Conditions (fog, heavy downpours, etc.) • Damage to traffic control equipment • Agency Resources

  3. Snow Operations - 3” Storm • 2,485 miles of road to treat. • 200 snow fighting personnel. • 197 Pieces of County owned equipment. • 900 tons of salt mix is required to treat the major and primary roads one time. • 1,600 tons of sand mix is required to treat the neighborhood streets one time. • It takes approximately 16 hours after the snow has stopped falling to plow and/or treat every County road one time.

  4. Snow Operations • Equipment Preparation • Snow Emergency Routes • Police & Fire • School Delays or Closings • Transit Impacts - Code White, Drivers • Parking Lots & Garage Decks • Facilities

  5. Managing Weather Impacts • Scrounge around for weather info • Plan & prepare based on available info • Allocate resources based on location, type, severity & duration Tailored Response

  6. Sources of Information • Faxed alerts from weather forecasting services (AccuWeather) • Weather Monitoring Stations • Radar Loop on Cable TV • Weather Channel • Look out the Window

  7. What Is ITS ? • ITS (Intelligent Transportation Systems) is the use of advanced technology to improve the movement and safety of people and goods. • Used to improve how the transportation system is managed and operated under ALL conditions • ITS, in a broad sense, is the management of a system of systems: Traffic Signal System Freeway Management System Traveler Information System Incident Management System Transit Management System

  8. What Is ATMS ? • Advanced Transportation Management System • State of the art technology for managing the County’s critical roadways • Control • Monitoring • Information • Montgomery County’sITS system

  9. Existing Decision Support Model Responses that are Inconsistent and Inaccurate + =

  10. Desired Decision Support Model Responses that are Consistent and Appropriate

  11. Undesirable Architecture Signal System PC Sign Control PC Dispatch PC Weather PC Other PC

  12. Desired Architecture Real Time Weather Applications Real Time Traffic Applications Base Mapping

  13. Weather Services Other ATMS Physical Architecture Travelers Centers Traffic Mgt. Transit Archive Data (ATMS/ Mgt. Mgt. COMTRAC) (ORBCAD) (Informix) Personal Information PIMS Chart II Access Wide Area Wireless Communications Wireline Communications Transit Roadway including Weather Sensors Vehicle Communications Dedicated Short Range Vehicle to Vehicle Communications Vehicles Roadside

  14. Typical Weather Radar Display

  15. ATMS w/o Integrated Weather Data

  16. ATMS w/ Integrated Weather Data

  17. Improving Operations • Better deployment of personnel: • Scheduling and duration of event. • To handle damaged equipment. • Enhancements to dynamic signal operations: • Increase clearance times due to road friction. • Modify cycle & split timing patterns

  18. Architecture & Data Standards • ITS National Architecture • User Services & Market Packages • ITS Standards • communications • message sets • object definitions • References • www.its.dot.gov • www.ntcip.org

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