We have started looking at several large cities and fast growing cities for which the
Profiles have been released. We are seeing slight declines (%) in carpooling, and slight
increases in driving alone (%) . Transit shares seem to be about the same.
The most important difference from 1990 to 2000 that we have noticed is the large
increase in travel time. We are seeing 4 minutes increases in average travel time across
the board for both the large cities and the fast growing cities. About ½ minute of this
increase may be attributable to the difference in "top coding" travel time, from
99 minutes in 1990 to 200 minutes in 2000.
As data for additional States are released, we will compile our results and post to the
listserv. We are planning to add Metro Area analysis in addition to examining cities.
Elaine Murakami, FHWA
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