Improving Assignment Results for Air Quality Analyses

Details

• Creators:
  Benson, Jimmie D. ; Borowiec, Jeffrey D.
• Corporate Creators:
  Texas Transportation Institute. Texas A&M University
• Corporate Contributors:
  Texas. Dept. of Transportation. Research and Technology Transfer Office ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Traffic assignment
  • Mobile sources
  • Emissions testing
  • Air quality management
  • Travel demand
  • Transportation planning
• Publication/ Report Number:
  FHWA/TX-97/1357-lF
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Texas
• Edition:
  Final Report: September 1993 - August 1995
• Corporate Publisher:
  Texas Transportation Institute. Texas A&M University
• Abstract:
  The hypothesis to be tested under this study was that improved 24-hour assignment results could be achieved by implementing time-of-day assignment procedures. The objectives of the study were: 1. To quantify the improvements in the 24-hour assignment results which can be obtained from using time-of-day modeling techniques in the development of 24-hour volume estimates. 2. To measure the impact of the time-of-day modeling approach on mobile source emission estimates versus those developed using 24-hour assignment results factored to represent time-of-day volume estimates. The Houston-Galveston regional travel models and base year data were selected as the data base for this study. Neither assignment technique emerged as clearly better in replicating the count-based volume estimates.
• Format:
  PDF
• Funding:
  0-1357
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/82610/dot_82610_DS1.pdf
• File Type:
  [PDF - 2.72 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:cba2efe161b9cb0f50d46ec1c4ab14276fe666cf8f5a66a6814e15b81f2917eafc8716a5346da139e577cbc30eca3ccf99606b47a3548a1de873796c907ad99d