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The Air Quality Impacts of Urban Highway Capacity Expansion: Traffic Generation and Land Use Change

  • Hansen, Mark
  • Gillen, David
  • Dobbins, Allison
  • Huang, Yuanlin
  • Puvathingal, Mohnish
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    Since the mid-1970s, traffic congestion on California’s urban highways has increased markedly. The roughly 3 per cent annual growth in the ratio of vehicle-miles to lane-miles that occurred during the 1960s accelerated to 4 per cent from 1974 to 1985 and 5 per cent after 1985. Moreover, there was comparatively little upgrading of existing lane-miles over this period. As traffic density increased, so did congestion. By 1988, some estimates put the economic cost of congestion to California at $16 billion in time lost and $1 billion in fuel. Despite a California Division of Highways Plan, developed in 1958, calling for 12 thousand miles of limited access roadways, by 1990 less than 6 thousand had been completed.

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    File URL: http://www.escholarship.org/uc/item/6zz3k76c.pdf;origin=repeccitec
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    Paper provided by University of California Transportation Center in its series University of California Transportation Center, Working Papers with number qt6zz3k76c.

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    Date of creation: 01 Apr 1993
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    Handle: RePEc:cdl:uctcwp:qt6zz3k76c
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