Columns in the tti2003 Excel spreadsheet

A Urban area
B 2001 population in thousands
C Area in square miles
D Density in people per square mile
E 1982 population in thousands
F 82-01 population growth
G 2001 Travel Time Index
H 1982 Travel Time Index
I Increase in Travel Time Index
J 2001 thousands of hours of delay
K Delay per capita
L Increase in per capita delay since 1982
M Millions of gallons of fuel wasted
N Gallons wasted per capita
O Congestion cost in millions of dollars
P Cost per capita
Q Average annual percentage growth in vehicle miles traveled
R 2001 daily vehicle miles traveled on freeways in thousands
S 1982 daily vehicle miles traveled on freeways in thousands
T 2001 daily vehicle miles traveled per freeway lane mile
U 2001 daily vehicle miles traveled on other arterials in thousands
V 1982 daily vehicle miles traveled on other arterials in thousands
W 2001 daily vehicle miles traveled per other arterials lane mile
X 2001 freeway lane miles
Y 1982 freeway lane miles