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PUBLIC TRANSPORTATION:
TYPES OF PUBLIC TRANSPORTATION
Buses
Paratransit
Streetcars
Light-Rail Transit
Heavy-Rail Transit
Commuter Rail Transit
Automated Guided Transit
Ferries
DEVELOPMENT OF PUBLIC TRANSPORTATION IN THE UNITED STATES
HISTORY

AUTOMOBILE:
POWER SYSTEM
Engine
Engine Types
Fuel Supply
Exhaust System
Cooling and Heating System
DRIVETRAIN
Transmission
Front- and Rear-Wheel Drive
SUPPORT SYSTEMS
Suspension System
Wheels and Tires
CONTROL SYSTEMS
Steering
Brakes
ELECTRICAL SYSTEM
Ignition System
SAFETY FEATURES
HISTORY
Automobiles Through the Years
Internal-Combustion Engine
Early Electric Cars
AUTOMOBILES IN THE 20TH CENTURY
NEW TECHNOLOGIES

AUTOMOBILE INDUSTRY:
ECONOMIC IMPORTANCE
Domestic Impact
Foreign Trade
HOW CARS ARE BUILT
Research, Design, and Development
Manufacturing and Assembly
Sales and Service
Customer Feedback
HISTORY OF THE AUTOMOBILE INDUSTRY
Early Automobile Concepts
Henry Ford and Mass Production
Other Automakers
The Great Depression of the 1930s
Labor Unions and Strikes
Wartime Production
Postwar Production
Automobile Safety
Foreign Imports and the Energy Crisis
The 1980s and 1990s
FUTURE AUTOMOBILE INDUSTRY TRENDS
Computerization
Alternative Fuel Research
Materials and Safety


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Light-Rail Transit


Many congested cities have turned to Light Rail Transport (LRT) because these systems offer relative simplicity and versatility. For instance, in areas that cannot geographically handle a subway system, the light rail may operate high above street level. This LRT services the London docklands, providing convenient transportation through the industrial network.

Light-rail transit is an electric railway system that evolved from streetcar systems. Like streetcars, light-rail cars operate as single units or as short trains of two or three cars. Light rail is designed to use a variety of rights-of-way, providing more flexibility than the streetcar. In some cities, light-rail systems operate like streetcars in downtown areas but then move to reserved lanes of traffic to service outer neighborhoods. Light-rail systems may also operate in tunnels under congested areas or on elevated tracks mounted over city streets. Light rail is popular in Europe and is in use in several U.S. cities, including Portland, Oregon; San Diego, California; and Baltimore, Maryland. Light rail is a cheaper and more versatile alternative to older rail systems.

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TRUCK:
LIGHT TRUCKS
MEDIUM TRUCKS
HEAVY TRUCKS
TRAILERS
TRUCKING OPERATIONS AND REGULATIONS
HISTORY

ROAD:
TYPES OF ROADS
Highways
Urban Streets
Rural Roads
ROADWAY ENGINEERING
Roadbed
Base Course
Wearing Course
Bituminous Pavement
Concrete Pavement
ROAD PLANNING AND ADMINISTRATION
HISTORY OF ROAD CONSTRUCTION