State_of_Transportation

State_of_Transportation - Virginia Tech (A.A. Trani)...

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Unformatted text preview: Virginia Tech (A.A. Trani) Introduction to Transportation Engineering CEE 3604 State of the U.S. Transportation System Dr. Antonio A. Trani Professor of Civil and Environmental Engineering Virginia Tech Virginia Tech 2 Topics for Discussion Description of various modes of transportation Recent historical trends- Highway and roads- Air transportation- Ports- Rail transportation Review of various areas of transportation technologies Virginia Tech 3 State of Transportation in the U.S. The United States has one of the most advanced transportation systems in the world Recent trends, however, point out to some de f ciencies and imbalances between transportation supply and transportation demand (for example highway modes are quite prominent) The economy of the country is tied to the ef f ciency of the transportation system The average person in the U.S. spends 15% of their Virginia Tech 3 State of Transportation in the U.S. The United States has one of the most advanced transportation systems in the world Recent trends, however, point out to some de f ciencies and imbalances between transportation supply and transportation demand (for example highway modes are quite prominent) The economy of the country is tied to the ef f ciency of the transportation system The average person in the U.S. spends 15% of their income in transportation-related activities Virginia Tech 4 Road Mileage in the U.S. Over Time 3,000,000 3,200,000 3,400,000 3,600,000 3,800,000 4,000,000 400,000 500,000 600,000 700,000 800,000 900,000 1,000,000 1960 1970 1980 1990 2000 Total Miles of Road Rural Mileage Urban Mileage Rural and Total Road Mileage (miles) Urban Road Mileage (miles) Year Virginia Tech 5 Highway System Inventory Statistics 60,000,000 80,000,000 100,000,000 120,000,000 140,000,000 160,000,000 180,000,000 200,000,000 1960 1970 1980 1990 2000 Passenger Cars Licensed Drivers Passenger Cars or Licensed Drivers Year Source: Bureau of Transportation Statistics (2005). Virginia Tech 6 Highway Vehicle Miles Traveled (VMT) 500,000 1,000,000 1,500,000 2,000,000 2,500,000 3,000,000 1960 1970 1980 1990 2000 VMT (Veh-Miles) VMT Car Millions of VMT (Veh-Miles) Year Source: Bureau of Transportation Statistics (2005). Virginia Tech 7 State of the Highway System Well developed (many miles of roads) Demand (as measured by Vehicle Miles Traveled - VMT) has grown substantially more than supply (road miles) More drivers than passenger cars in the country Discuss the impact of this in class Virginia Tech 8 Highway Safety in the U.S....
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State_of_Transportation - Virginia Tech (A.A. Trani)...

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