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Benefit-Cost Analysis of the SMART SunGuide Operations in Fort Lauderdale, Florida June 2006

Benefit-Cost Analysis of the SMART SunGuide Operations in Fort Lauderdale, Florida June 2006. Steve Corbin District ITS Operations Manager FDOT District 4. SMART SunGuide TMC. Manage the operations of Ft. Lauderdale freeway corridors 24 hour / 7 day operations Manage ITS field device

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Benefit-Cost Analysis of the SMART SunGuide Operations in Fort Lauderdale, Florida June 2006

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  1. Benefit-Cost Analysis of the SMART SunGuide Operations in Fort Lauderdale, FloridaJune 2006 Steve Corbin District ITS Operations Manager FDOT District 4

  2. SMART SunGuide TMC • Manage the operations of Ft. Lauderdale freeway corridors • 24 hour / 7 day operations • Manage ITS field device • Dispatch service patrols and SIRV • Provide information to 511/ATIS web site • Coordinate operations with other agencies

  3. Objective • FDOT D4 evaluates TMC performance annually • Used performance measures • Outcome measures • Output measures, and • Benefit-cost measures • Benefit-cost measurement is the subject of this presentation

  4. Considered Benefits • Reduction in travel time/delay • Incident duration reduction • Diversion due to DMS messages • Reduction in secondary accidents • Reduction in fatalities due to faster response • Reduction in fuel consumption • Reduction in emission • Driver monitory benefits due to free-of-charge services provided by service patrol

  5. Benefit Calculation methodology • Based on queuing theory calculations of delay, queue lengths, and total number of vehicles queued • Analyses performed for seven periods of the week • Analyses performed for each segment of the three managed corridor • A segment is defined as the directional link between two interchanges • Use of IDAS Florida-specific models for emission (NOx, CO, and HC), fuel consumption, and safety • Highway capacity manual provided capacity under incident and no-incident conditions

  6. Data Sources • The FDOT District 4 SMART database • Detailed incident statistics (number, duration, blockage) • Number of DMS message activations • Other FDOT databases • AADTs and hourly volume variations • Geometry (section length, number of lanes)

  7. Incident Duration Reductions • Year 2005 Incident durations from SMART database • Shoulder blocking accidents about 49 minutes • Lane blocking accidents 50 minutes followed by 30 minutes shoulder blockage • Duration with no ITS deployment • Estimated based on reduction in detection, verification, and response reported in previous studies • Shoulder blocking accidents about 67 minutes • Lane blocking accidents 65 minutes followed by 36 minutes shoulder blockage

  8. No. of Managed Incidents - 2005 Incident Type Number Shoulder incidents 33336 Shoulder accidents 3143 One-lane blockage 1095 Two-lane blockage 512 Three-lane blockage 260 ≥ Four-lane blockage 130

  9. Benefits of Diversion • Assumes that a certain percentage of travelers divert in response the information and get travel time benefits from this diversion. • Diversion rates with and without traveler information are assumed to be a function of the incident time of day in which the incident occurs and the severity of the incidents

  10. User Monetary Benefits • Users save money due to services provided by service patrol • Costs per service for different service types were calculated considering the following: • Flat rate per service • Tow cost, if needed for the service • MOT cost, if needed

  11. Convert Benefits to Dollars • $13.45 per hour of person travel and $71.05 per hour of truck travel. • Fuel consumption cost is $2.0 per gallon • $3,200,000 per fatal crash, $74,730 per injury crash, and $2,000 per PDO crash. • Dollar values for emission rates are $1,774, $3,731, and $3,889 per/gallon, for HC, NOx, and CO emission (IDAS values)

  12. Obtained Costs Element Initial ($)* O&M ($)* TMC 6.7 Million 2.5 Million DMS/Fiber 11.0 Million 2.3 Million Road Ranger — 2.5 Million TIM — 0.31 Million ATIS Share — 0.175 Million *Costs were obtained from FDOT District 4 database Note: the cost of 7 CCTV cameras for 0.5 years was added to the above.

  13. Benefit-Cost Results • Total annual benefit is $86,002,364 • Total annual cost is $8,239,397 • Benefit/cost ratio is 10.44

  14. Future Effort • Benefit/cost ratio will be updated annually • In the near future, additional data and video images will be collected allowing better calibration of parameters • Enhancements are planned to the procedure developed in this study to make use of the additional collected data

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