CONGESTION MANAGEMENT THROUGH BUS METERING AT THE LINCOLN TUNNEL

The Lincoln Tunnel is a three-tube, six-lane tunnel connecting New York to New Jersey and is owned and operated by the Port Authority of New York and New Jersey. The tunnel provides weekday 3-hr p.m. peak service for approximately 22,000 vehicles, of which nearly 10% are buses. Bus traffic is concentrated in priority access lanes to avoid the general traffic peak congestion queues. The bus priority access lanes merge with selected lanes of general traffic near the tunnel's entrance portal. The resultant "bus-rich" traffic stream is turbulent, with an average throughput of 1,050 vehicles per hour; this stream consists of 350 buses and 700 cars per lane during p.m. peak hours. In 1993, the Port Authority conducted a test on fixed-rate access metering applied upstream of the bus and general traffic merge point at the New York entrance portal. The access metering investigation results showed a 15% increase in throughput, a 20% decrease in trip travel time, and a 20% reduction in the dispersion of 1-min flow rates (i.e., a more uniform traffic stream) with access metering, compared to unmetered access. The metered bus access lane was found to be a key factor in the experiment, since the bus drivers exhibited a high degree of compliance with the meter control. Their adherence fostered passenger car compliance, resulting in a smooth-flowing traffic stream. Extrapolation of the test results to the entire Lincoln Tunnel facility yields an increase in peak hour tunnel capacity of 1,000 vehicles per hour.

Language

  • English

Media Info

  • Features: Figures;
  • Pagination: p. 35-40
  • Monograph Title: Public transportation 1995: current research in planning, management, technology, and ridesharing
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00714918
  • Record Type: Publication
  • ISBN: 0309061741
  • Files: TRIS, TRB
  • Created Date: Dec 15 1995 12:00AM