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A Benefit-Cost Analysis of a Freeway Service Patrol Program in Chicago

A Benefit-Cost Analysis of a Freeway Service Patrol Program in Chicago. By: Pranav Koshiya Committee Member Huaguo Zhou, PhD. http://www.dot.state.il.us/landacq/idotmapdistrict.gif. Topics. Background Freeway Service Patrol Emergency Traffic Patrol program (ETP) Methodology

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A Benefit-Cost Analysis of a Freeway Service Patrol Program in Chicago

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  1. A Benefit-Cost Analysis of a Freeway Service Patrol Program in Chicago By: PranavKoshiya Committee Member Huaguo Zhou, PhD http://www.dot.state.il.us/landacq/idotmapdistrict.gif CE 491

  2. Topics Background Freeway Service Patrol Emergency Traffic Patrol program (ETP) Methodology Data Collection and Assumptions Anticipated Results CE 491

  3. Background • Highway congestion costs travelers more than $87 billion, 2.5 billion gallons of fuel and 4 billion hours annually (Urban Mobility Report, 2009) • Two types of congestion • Recurring: Congestion during peak periods of travel (commute hours) • Non-recurring: Congestion caused due to random events like, flat tires, crashes, disabled vehicles, etc..that cause reduction in freeway capacity • 60% of congestion on freeway • Solution • Recurring: TDM, TCM, Access Management, ITS • Non-recurring: Freeway Service Patrol CE 491

  4. Freeway Service Patrol (FSP) • Fleet of vehicles that rove the freeway • They provide a low tech incident detection, response and removal system • Funding: • DOTs fund • DOTs contract it out to local agencies • Partial funding from DOT and Local Business (CVS Pharmacy) CE 491

  5. Emergency Traffic Patrol (ETP) • The ETP Mission: Detect and quickly remove the incident from freeway • Consists of total 54 vehicles and covers over 1137 lane miles • Hours of operation and Charge • 24 hours, 7 days a week, 365 days a year • Free to public CE 491

  6. Patrol Vehicles Patrol Truck Heavy Duty Truck Supervisor Truck CE 491

  7. Emergency Traffic Patrol (ETP) • One of the oldest FSP program • Started in 1961 • Total motor assisted from 1961 to 2004: 3,389,655 CE 491

  8. ETP Service Area for District 1 http://www.bing.com/maps/default.aspx?q=&mkt=en-US&FORM=BYFD CE 491

  9. Benefits of ETP Program Vehicular delay savings Lesser fuel consumption Environmental Benefits Reduction in secondary accidents Increased security for road users CE 491

  10. Methodology • Extensive field data collection • Use loop detectors • Freeway Service Patrol Evaluation Version 12.1 (FSPE) • Developed by University of California at Berkeley • Uses MS-Excel for all inputs and outputs • User friendly and convenient to use CE 491

  11. FSPE Inputs • Inputs • Cost of ETP • Freeway segment characteristics • Traffic Volumes • Incidents CE 491

  12. Costs of ETP • Depends on • Number of patrolling trucks • Service hours • Coverage miles • Capital, Administrative and Operating • Cost per truck hour is between $22 to $88 CE 491

  13. Freeway segment characteristics A Freeway B • Beat Design • Length (Miles) • Number of Lanes • AADT – Average Annual Daily Traffic • Directional Factors • Hourly traffic volumes CE 491

  14. Incidents • Divide into three categories • Accident • Breakdown • Flat tires, Fuel, Jump start, and Minor repairs • Debris CE 491

  15. Assumptions • Default freeway capacity: 2,100 pcphpl • Free flow speed: 55 mph • Response times without ETP: 30 minutes • Average speed of patrolling trucks: 30 mph • Average fuel cost in 2009: $2.32 per gallon (AAA) • Estimated $15.47 per hour of person travel and $102.12 per hour of truck time (Urban Mobility Report, 2009) CE 491

  16. Capacity Reduction CE 491

  17. Beat One: Eden’s (I-94) Result Annual delay savings: 72,829 veh-hours Annual fuel savings: 109,857 gallons B/C Ratio: 20.26:1 CE 491

  18. Anticipated Results Annual delay savings (veh-hours) Annual fuel savings (gallons) Overall B/C Ratio CE 491

  19. Questions CE 491

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