NOTES ON FREEWAY CAPACITY

A DISCUSSION OF OPERATING CHARACTERISTICS ON RURAL FREEWAYS AT VOLUMES LESS THAN CAPACITY WHICH WILL RESULT IN A LEVEL OF SERVICE IS GIVEN. BOTH DESIGN CAPACITY AND POSSIBLE CAPACITY OF A UNIFORM SEGMENT OF AN URBAN FREEWAY ARE THEN DISCUSSED. THE GENERAL PROCEDURE DETERMINED FOR CHECKING WEAVING AND MERGING IS' 1/ ESTABLISH A GIVEN GEOMETRIC CONDITION, 2/ ESTIMATE VOLUMES THE VARIOUS TRAFFIC MOVEMENTS, 3/ VOLUME DETERMINATION BY USE OF DISTRIBUTION BY LANE OF ONE-WAY THROUGH TRAFFIC AND PERCENTAGE DISTRIBUTION OF ON-AND OFF-RAMP TRAFFIC IN RIGHT LANE AND AUXILIARY LANE, 4/ AVERAGE VOLUME PER LANE ACROSS ALL LANES SHOULD NOT EXCEED 1800 PER LANE, AND 5/ NUMBER OF WEAVING VEHICLES IN ANY 500-FT SEGMENT SHOULD NOT EXCEED 2100 VPH. THE ANALYSIS OF INTERCHANGE CAPACITY IS ESSENTIALLY THE ANALYSIS OF CONDITIONS AT RAMP TERMINALS.

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  • Supplemental Notes:
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  • Authors:
    • Moskowitz, Karl
    • Newman, Leonard
  • Publication Date: 1963

Media Info

  • Media Type: Digital/other
  • Features: Appendices; Figures; References; Tables;
  • Pagination: pp 44-68
  • Monograph Title: Highway and interchange capacity
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00224751
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Dec 12 1994 12:00AM