John Hennessy III,
P.E.
TEXAS TRANSPORTATION INSTITUTE
The Florida Department of Transportation (FDOT) is responsible for the safe operation and management of thousands of miles of highways. More than 12,000 centerline miles are on- system miles, of which roughly half are located in urban areas (i.e., areas with a population of at least 5,000) (1). This total includes 456 centerline miles that are part of the Florida Turnpike Enterprise.
TEXAS TRANSPORTATION INSTITUTE
The data behind the 2012 Urban Mobility Report are hundreds of speed data points on almost every mile of major road in urban America for almost every 15-minute period of the average day. For the congestion analyst, this means 600 million speeds on 875,000 thousand miles across the U.S. – an awesome amount of information. For the policy analyst and transportation planner, this means congestion problems can be described in detail and solutions can be targeted with much greater specificity and accuracy.
TEXAS TRANSPORTATION INSTITUTE
The U.S. Army Corps of Engineers (Corps) is responsible for building and maintaining much of the federal water resources infrastructure in the nation and is responsible for construction and maintenance of navigation projects on 12,000 miles of river channels that comprise 27 inland river systems, and 207 lock chambers at 171 lock sites.
Congestion is a significant problem in America’s urban areas. This is well documented in the
Texas Transportation Institute’s Urban Mobility Report. Powered by 2010 INRIX traffic data,
the 2011 Congested Corridors Report includes analysis along 328 specific (directional) freeway
corridors in the United States. These corridors include many of the worst places for congestion
in the United States, and the detailed data allow for more extensive analysis and a better picture of the locations, times and effects of stop-and-go traffic. The report doesn’t list every bad location for congestion, but the issues explored here advance the understanding of when, how and where congestion occurs.
TEXAS TRANSPORTATION INSTITUTE
Each regional map has dots linking to a file containing the Urban Mobility and Congestion Statistics—congestion index, travel delay, fuel consumption, congestion cost—for every city included in the study. The files are in PDF format. You can get the numbers—all the numbers—for each of the 101 cities. You can also view the national congestion tables which provide comparison measurements for all 101 cities included in the study.
CEOs for Cities
The secret to reducing the amount of time Americans spend in peak hour traffic has more to do with how we build our cities than how we build our roads. While peak hour travel is a perennial headache for many Americans — peak hour travel times average 200 hours a year in large metropolitan areas — some cities have managed to achieve shorter travel times and actually reduce the peak hour travel times. The key is that some metropolitan areas have land use patterns and transportation systems that enable their residents to take shorter trips and minimize the burden of peak hour travel.
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