VALIDATION OF THE HOT AND COLD VEHICLE MODE PERCENTAGES FOR THE STATE OF FLORIDA

In using MOBILE5a, the default values for transient (hot and cold) and stabilized mode percentages are normally used. However, they may not be applicable to regions and time periods outside of the scenarios under which they were derived. A research effort was undertaken by the Florida Department of Transportation (FDOT) and the University of Central Florida (UCF) to obtain vehicle mode percentages that are more representative of conditions in Florida. The first phase of this study was conducted using mail-back survey sheets and the data were used to calculate mode percentages as percent vehicle miles traveled (VMT) in terms of categorizing variables (i.e., area type, facility type, time of day, etc.). This report presents the methodology and results from the second phase of the study which were used to supplement and validate the data from the first phase. Different approaches were taken in the second phase in that the surveys involved verbally asking questions at intersections rather than using mail-back survey sheets and the mode percentages were based on travel times to an intersection rather than entire trips. The data from the first phase were also re-evaluated. Aggregation of the data into just peak and off-peak categories was possible based on statistical testing since statistical testing appears to indicate that the results from the two phases are similar. The data from the two phases were combined to produce the final percentages that may be used for the state of Florida and are reported here.

  • Corporate Authors:

    University of Central Florida, Orlando

    Department of Civil and Environmental Engineering
    P.O. Box 162450
    Orlando, FL  United States  32816-2450

    Florida Department of Transportation

    Haydon Burns Building, 605 Suwanee Street
    Tallahassee, FL  United States  32301

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Wayson, R L
    • Kim, B Y
    • TOM, P
    • Jamshidian, M
  • Publication Date: 1999-5-29

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 45 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00765968
  • Record Type: Publication
  • Report/Paper Numbers: FL-ER-72-99, WPI 0510787,, State Job 9970-3554-010,, Final Report
  • Contract Numbers: BA-518
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: Jul 19 1999 12:00AM