Hudson River Vehicular Tunnel and Delaware River Bridge

Hudson River Vehicular Tunnel and Delaware River Bridge

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1920 edition. Excerpt: ...are needed prices will be below rather than above the present level. Tunnel construction, on the other hand, is more fiexible than bridge construction, because the cost of a tunnel is a direct function of its length, with the volume of excavation increasing as the square of the diameter. As the cost of excavation represents a large part of the total cost of the tunnel its cost will increase nearly as the square of the diameter, and an increase in width of roadway, therefore, can be made only at a considerable expense. The proper way to plan tunnels is to avoid the disadvantages inherent in bridge construction and to build only for the needs of the present and the near future, and when these facilities are outgrown other tunnels should be built at other locations. Traffic crossing the Hudson River to-day is distributed by ferries to convenient points both in New York and New Jersey for the entire length of Manhattan Island. N0 one tunnel could attract all of this trafiic, however large the tunnel might be. The trafiic would be best served by constructing a tunnel at the point where it is most needed, and when its facilities are outgrown building another tunnel at some other point which trafiic conditions at that time indicate as the best location. Vith such a development. it may be possible in the future, if trafiic conditions should warrant, that during rush hours one tunnel would be used by slow-moving vehicles only and another tunnel by fast-moving vehicles only. Such an arrangement is in effect at the present time on some of the East River bridges and appears to have given satisfactory results. In this connection it seems proper to point out that at the present time traffic congestion in our large cities is a matter of more

Product details

  • Paperback
  • 189 x 246 x 2mm | 82g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236569016
  • 9781236569011