CALLAHAN TUNNEL CAPACITY MANAGEMENT

The Callahan Tunnel capacity management actions that were implemented beginning May 1983 in conjunction with one-way inbound toll collection are described. Traffic operations and capacities for both "before" and "after" conditions are analyzed. The analyses of existing Callahan peak-hour traffic volumes, flows through the parallel Sumner Tunnel, and volumes in the four New York City tunnels provided a basis for estimating tunnel and tunnel-system capacity. The analyses suggested a tunnel capacity of 1,600 to 1,650 vehicles per lane per hour compared with average peak-hour system volumes of 1,450 vehicles per lane. Channelization of the tunnel approach, elimination of outbound toll collection, and realignment of the tunnel exit lanes were estimated to increase system throughput by about 350 to 400 vehicles per hour--up to 200 vehicles per lane. "After" studies conducted during June 1983 indicated that flow rates of more than 1,600 vehicles per lane were achieved. The plan is significant in another respect--speed of implementation. Improvement concepts were formulated during March and April 1983, and their implementation began during May of that year

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1985/1005/1005-001.pdf
• Summary URL:
  https://scholar.google.com/scholar_lookup?title=CALLAHAN+TUNNEL+CAPACITY+MANAGEMENT&author=H.+Levinson&author=M.+GOLENBERG&author=J.+Howard&publication_year=1985
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• Supplemental Notes:
  • Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Corporate Authors:

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• Authors:
  • Levinson, Herbert S
  • Golenberg, Marvin
  • HOWARD, JANE
• Publication Date: 1985

Media Info

• Media Type: Print
• Features: Figures; Maps; References; Tables;
• Pagination: pp 1-10
• Monograph Title: HIGHWAY CAPACITY, TRAFFIC CHARACTERISTICS, AND FLOW THEORY
• Serial:
  • Transportation Research Record
  • Issue Number: 1005
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Before and after studies; Flow; Highway capacity; Highway operations; Peak hour traffic; Toll collection; Traffic control; Traffic volume; Vehicular tunnels
• Uncontrolled Terms: Channelization; Flow rate
• Old TRIS Terms: Tunnel capacity; Tunnel traffic operations
• Subject Areas: Highways; Operations and Traffic Management; I71: Traffic Theory;

Filing Info

• Accession Number: 00451820
• Record Type: Publication
• ISBN: 0309038154
• Report/Paper Numbers: HS-039 125
• Files: HSL, TRIS, TRB
• Created Date: Dec 31 1985 12:00AM