\doc\web\98\10\traffic.txt Buried in traffic Seattle Times Jan 1, 1999 peyton whitley traffic up 143% pop up 23% since 1969 natl wash state 1910 9,311 vehicles 1940 500,000 1960 1m 1980 2m 1990 nearly 3m king co 1.6m vehicles, half of the state 1998 kingco 290,845 fewer drivers than reg vehicles 10,760 age 16 32,950 35 24 age 94 4 98 1 103 I5 mercer 233,000 / day 1994 244,000 1997 520 bridge 97,000 1994 102,000 1997 national commuting 17.7% fam personal 24.2 shopping 20.2 soc rec 16.7 church school 8.8 visiting 8.2 other work 2.6 doctor dentist 1.5 avg commute 8.5 mi 1983 11.6 mi 1995 time 18.2 1983 20.7 min 1995 speed 28mph 33.6mph men 81 min per day women 64 min men drive 75% of tome when both in car women fewer workers, closer trips 41.7 dirver only 44.4 multiple transit 1.8 1.7 school bus metro 75m rides per year 7% of trips est 2010 69 car 9 transit 23 car pool us uses only 7% more gas than 1978 wa 764 mi interstate, 5445 pave highway 820 urban roads 79,556 total network, same as 1987, only 47 new 87-97 but 105 million vehicle mi in 1987, up to 140, 35% in 1997, same roads by peyton whitley texas tranportation institute http://mobility.tamu.edu