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Subcentering and Commuting: Evidence from the San Francisco Bay Area, 1980- 1990

Our study has sought to refine the analysis of the spatial implications on commutinbgy disaggregating data among employment centers, measuring highway and transit network distances, and examining commuting behavior during the entire 1980-1990 window of rapid suburban employment growth. When combining refined commute distance measures with data on shifts in modald istributions and occupancyl evels, it is clear that employment decentralization has been associated with substantial increases in commuteV MTpe r employee, at least in the San Francisco Bay Area. Since stfifts in VMTpe r employeea re thought to be strongly associated with transportation externalities, the broader social implications of job decentralization on commuting, we would argue, deserve more public policy attention.