Development of Planning Values for Urban Freeways in Large Texas Cities

Details

• Creators:
  Walters, Carol H. ; Poe, Christopher ; Stokes, Robert W.
• Corporate Creators:
  Texas Transportation Institute. Texas A&M University
• Corporate Contributors:
  Texas State Department of Highways and Public Transportation ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Trucks
  • Transportation planning
  • Data analysis
  • Planning
  • Freeways
  • Large cities
  • Urban areas
  • K-Factor
  • Truck Percentages
  • Directional Split
• Publication/ Report Number:
  FHWA/TX-90/1196-1
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas ; United States
• Edition:
  Final Report September 1987 - November 1989
• Corporate Publisher:
  Texas Transportation Institute. Texas A&M University
• Abstract:
  Using data from automatic traffic recorders (ATR) for the years 1973 to 1988 in the Texas cities of Houston, Dallas, Fort Worth, Austin, and San Antonio, this project has studied the planning parameters K and D used to determine design hour volumes. Truck percentages during peak hours have been studied using data from 24-hour manual count stations from 1984 through 1987. Variables identified and tested for significance in predicting directional K factors (Kd) included weekday ADT per lane, degree of capacity utilization during the peak hour, employment density near the ATR station, length of peak period, and distance from the CBD. Although correlations were found using individual variables, a multivariable regression and analysis produced a highly unstable model over time.
• Format:
  PDF
• Funding:
  2-10-88-1196
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/81995/dot_81995_DS1.pdf
• File Type:
  [PDF - 2.60 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:f8a102b9939177abad4f0cb617af7fcfb1129bdc69b29b04348268a927a69e5b0229e0b04a38f117706b68c96d19eb7b2580ad9c28b261f11457f06bf2b9f19a