THE ENVIRONMENTAL INFLUENCE OF RAIN ON FREEWAY CAPACITY

RAINFALL INFORMATION IN HOUSTON, TEXAS, FOR THE PERIOD MARCH--DECEMBER 1968 WAS CORRELATED WITH TRAFFIC DATA RECORDS OF THE GULF FREEWAY SURVEILLANCE AND CONTROL CENTER TO DETERMINE THE EFFECT OF RAIN ON FREEWAY CAPACITY. CAPACITY WAS NOT DEFINED AS PEAK HOUR DEMAND BUT AS A FUNCTION OF PEAK HOUR OVERLOADING AT TWO DELECTED BOTTLENECKS: THE CAPACITY OF THE FREEWAY ASSOCIATED WITH THE PEAK HOUR SAMPLE WAS DEFINED AS THE MAXIMUM ORDINATE OF THE BEST-FIT FLOW-DENSITY CURVE. RAIN WAS FOUND TO REDUCE THE CAPACITY OF THE FREEWAY SECTION TO BETWEEN 81 AND 88 PERCENT OF ITS DRY WEATHER CAPACITY AT A CONFIDENCE LEVEL OF 95 PERCENT. /AUTHOR/

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 74-82
  • Monograph Title: Highway capacity and quality of service
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00228028
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Dec 28 1970 12:00AM