Traffic Volume Trends - Urban
Estimated Vehicle Miles (Millions) and Percent Change
from Same Period Previous Year
(Includes Preliminary Data for December 2001)

Year 2001

Urban Interstate			%	Urban Other Arterial			%	Other Urban			%	Total Urban			%	All Systems			%
Jan	30,526		3.0	Jan	70,219		2.5	Jan	28,662		2.2	Jan	129,407		2.6	Jan	208,543		2.3
Feb	29,190		0.4	Feb	66,823		0.3	Feb	27,557		0.2	Feb	123,570		0.3	Feb	199,524		-0.0
Mar	33,259		-0.4	Mar	76,730		-0.9	Mar	31,419		-0.8	Mar	141,408		-0.8	Mar	231,162		-0.7
Q1	92,975		1.0	Q1	213,772		0.6	Q1	87,638		0.5	Q1	394,385		0.6	Q1	639,229		0.5
Apr	33,363		2.4	Apr	75,222		0.9	Apr	31,437		1.5	Apr	140,022		1.4	Apr	231,087		1.3
May	35,071		0.8	May	78,724		0.4	May	32,775		0.3	May	146,570		0.5	May	243,960		0.5
Jun	34,637		-0.2	Jun	77,971		-1.1	Jun	32,063		-0.8	Jun	144,671		-0.8	Jun	242,334		-0.4
Q2	103,071		1.0	Q2	231,917		0.1	Q2	96,275		0.3	Q2	431,263		0.3	Q2	717,381		0.5
1st Half		196,046	1.0		1st Half	445,689	0.3		1st Half	183,913	0.4		1st Half	825,648	0.5		1st Half	1,356,610	0.5
Jul	34,886		2.4	Jul	78,276		1.3	Jul	32,706		1.8	Jul	145,868		1.7	Jul	249,171		1.6
Aug	35,298		1.0	Aug	80,447		0.7	Aug	33,044		1.5	Aug	148,789		1.0	Aug	251,263		1.3
Sep	31,944		-1.8	Sep	71,454		-2.5	Sep	30,012		-1.1	Sep	133,410		-2.0	Sep	224,243		-1.5
Q3	102,128		0.6	Q3	230,177		-0.1	Q3	95,762		0.8	Q3	428,067		0.3	Q3	724,677		0.5
3 Qs		298,174	0.8		3 Qs	675,866	0.2		3 Qs	279,675	0.5		3 Qs	1,253,715	0.4		3 Qs	2,081,287	0.5
Oct	34,107		1.0	Oct	78,023		0.9	Oct	32,021		0.4	Oct	144,151		0.8	Oct	239,671		1.2
Nov	33,222		2.3	Nov	75,351		1.1	Nov	30,954		2.8	Nov	139,527		1.8	Nov	229,220		2.8
Dec	32,990		4.2	Dec	75,147		2.1	Dec	32,028		3.8	Dec	140,165		3.0	Dec	227,837		4.2
Q4	100,319		2.5	Q4	228,521		1.4	Q4	95,003		2.3	Q4	423,843		1.8	Q4	696,728		2.7
2nd Half		202,447	1.5		2nd Half	458,698	0.6		2nd Half	190,765	1.5		2nd Half	851,910	1.0		2nd Half	1,421,405	1.6
Year		398,493	1.3		Year	904,387	0.5		Year	374,678	1.0		Year	1,677,558	0.8		Year	2,778,015	1.0