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

Mark Hansen, David Gillen, Allison Dobbins, Yuanlin Huang and Mohnish Puvathingal

University of California Transportation Center, Working Papers from University of California Transportation Center

Abstract: 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.

Keywords: Social; and; Behavioral; Sciences (search for similar items in EconPapers)
Date: 1993-04-01
References: View complete reference list from CitEc
Citations: View citations in EconPapers (16)

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