Integrated database and analysis system for the evaluation of freeway corridors for potential ramp signaling.

Details

• Creators:
  Gan, Albert ; Zhu, Xuesong ; Liu, Kaiyu ; Alluri, Priyanka ; Robbins, Charles
• Corporate Creators:
  Florida International University. Lehman Center for Transportation Research
• Corporate Contributors:
  Florida. Department of Transportation. Research Center
• Subject/TRT Terms:
  • Highway traffic control systems
  • Freeway management systems
  • Signalization
  • Ramp metering
  • Warrants (Traffic control devices)
  • Geographic information systems
  • Databases
  • Corridors
  • Ramps, corridors and stairs
  • Evaluation
  More +
• Resource Type:
  Tech Report
• Geographical Coverage:
  Florida
• Edition:
  Final report; May 2010-Nov. 2011.
• Corporate Publisher:
  Florida International University. Lehman Center for Transportation Research
• Abstract:
  Ramp signaling is a relatively low-cost traffic management strategy that aims to improve the flow of ; traffic by controlling the rate at which vehicles enter the freeway. While studies have shown that ramp ; signaling helps to alleviate traffic congestion and improve traffic safety, not all freeway locations are ; suitable for ramp signaling. Guidelines are needed to help determine the suitability of freeway ; locations for ramp signaling. Proper evaluation of potential locations in accord with these guidelines ; requires the use of data sets currently maintained separately by various FDOT offices. This project ; identified and evaluated the existing ramp signaling guidelines from 12 states in the U.S., four other ; countries, and three independent research organizations. It then selected a set of guidelines for Florida ; applications considering the availability of data for evaluation and the experiences gained from the ; Interstate 95 ramp signaling project in Miami-Dade County, Florida. A web-based Geographic ; Information System (GIS) was then developed to automate, to the extent possible, the process of ; evaluating sites for potential ramp signaling on the basis of the selected guidelines. A major component ; of the system is a central database that integrates five independent data sets from FDOT, including ; roadway inventory, detector data (including volume, speed, and occupancy), traffic counts, police crash ; records, and SunGuide incident records. The system greatly reduces the data acquisition effort, which ; is often the most time-consuming part of a project. The system can also be used as a tool for general ; data retrieval and serve as a platform for other applications. Several enhancements were recommended ; to further improve the system, including adding more data with additional details and additional ; visualization and reporting functions.
  More +
• Format:
  PDF
• Funding:
  BDK80 TWO 977-08
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/23575/dot_23575_DS1.pdf
• File Type:
  [PDF - 10.72 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:370df8181bd28247d5d58c931b4d83705efe8f2da859de8e8d631f44436815cc8659d179b2860ee7f11509a6542fdb8f36c24fdfd7961a2269f9dbfac7cc5e91