As a result of a growing concern over the degree of environmental pollution caussd by automobiles, a study was made of the effect of taxis in Midtown Manhattan, site of the largest fleet of taxis in this country. An analysis of the taxi industry was made, differentiating between public livery vehicles and medallion taxis, the latter being the type upon which the study focused. The operating characteristics of these taxis were examined with the finding that about 3,500 taxis are on the streets of Midtown at any one time. The total amount of vehicle miles of travel was determined by two methods, and the contribution to air pollution was calculated using emission rates. A survey was made to determine the amount of CO emitted as a result of taxi cruising. It was found that empty taxis account for 34 percent of the total number in operation during the day; however, this percentage fluctuates at different peaks during certain hours Morning, midday, and evening peaks were studied separately, with the resulting conclusion that on a weekday between 7 A.M. and 7 P.M., taxis account for about 25 percent of the carbon monoxide in Midtown. Since the movement of empty taxis is about 34 percent, their contribution to CO is about 8 percent. In order to cut down on air pollution, the author recommends that taxi stands be placed at strategic locations throughout the area to be operated on a voluntary basis. At present, taxis line up in front of certain establishments that produce a goodly number of fares. It is recommended that this practice be expanded to benefit both drivers and passengers, and to provide an alternative to cruising.

  • Corporate Authors:

    Institute of Traffic Engineers

    2029 K Street, NW
    Washington, DC    20006
  • Authors:
    • Brugger, R L
  • Publication Date: 1975-5

Media Info

  • Features: Figures; Photos; References;
  • Pagination: p. 26-29
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00098544
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 13 1975 12:00AM