Multi-Modal Intelligent Traffic Signal Systems (MMITSS) impacts assessment.

Details

• Creators:
  Ahn, Kyoungho ; Rakha, Hesham ; Hale, David K.
• Corporate Creators:
  Virginia Tech Transportation Institute
• Corporate Contributors:
  United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology
• Subject/TRT Terms:
  • Intelligent transportation systems
  • Multimodal transportation
  • Traffic signal control systems
  • Traffic signal priority
  • Travel time
  • Traffic simulation
  • Traffic delays
  • Freight traffic
  • Truck traffic
• Publication/ Report Number:
  FHWA-JPO-15-238
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office
• Abstract:
  The study evaluates the potential network-wide impacts of the Multi-Modal Intelligent Transportation Signal System ; (MMITSS) based on a field data analysis utilizing data collected from a MMITSS prototype and a simulation analysis. ; The Intelligent Traffic Signal System (I-SIG), Transit Signal Priority (TSP), Freight Signal Priority (FSP), and the ; combination of TSP and FSP applications were evaluated. MMITSS seeks to improve mobility through signalized ; corridors using advanced communications and data to facilitate the efficient travel of passenger vehicles, pedestrians, ; transit, freight, and emergency vehicles through the system. The field data analysis demonstrated that MMITSS ; applications effectively improved the travel time and the delay of the equipped vehicles. In particular, FSP reduced the ; delay of connected trucks by up to 20% and I-SIG improved travel time reliability by up to 56%, compared to the base ; case. The simulation study found that I-SIG achieved vehicle delay reductions up to 35% and TSP effectively saved ; travel time for both transit and passenger vehicles on the corridor where TSP was operated; but occasionally increased ; the system-wide delay, due to reduced green times on the side streets. FSP simulation results indicated that FSP ; successfully reduced travel times for connected trucks, but also increased system-wide delay, due to increased delays ; on side streets. The simulation study found that the combination of TSP and FSP applications was effective in ; assigning priority to trucks based on a pre-defined hierarchy of control. The study concludes that the MMITSS I-SIG, ; TSP, FSP, and the combination of TSP and FSP applications improve vehicle travel time, delay, and travel time ; reliability for equipped passenger cars, trucks, and transit vehicles on the test facility, but the tradeoff is that it may ; produce overall system-wide negative impacts.
  More +
• Format:
  PDF
• Funding:
  DTFH61-12-D-00020, Task 13-012
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/3557/dot_3557_DS1.pdf
• File Type:
  [PDF - 4.94 MB]
• Collection(s):
  Federal Highway Administration ; ITSJPO Digital Library
• Main Document Checksum:
  urn:sha-512:e37b55cd2b25ef8c4868cbfb2c888023b01e696237c66c97b97e31c788da5e819d1ae30969375ff663bc96ec66d239c6a2fad2959ea337a4c68ceaf786051cb2