Canals and inland waterways
Canals and inland waterways, natural or artificial waterways used for navigation, crop irrigation, water supply,…
Bridge
Bridge, structure that spans horizontally between supports, whose function is to carry…
National and international highway systems
The Romans had realized that a coordinated system of roadways connecting the…
New highways
The parkway The achievement of such a system in the automobile age required…
Changes in finance
From corvée to toll Through the millennia, responsibility for financing and building…
New paving materials
When urban street paving became widespread in the latter half of the…
Roads in the age of the automobile
Beginning in the 1840s, the rapid development of railroads brought the construction…
Early U.S. road systems
The Lancaster Turnpike The first engineered and planned road in the United States was the…
The birth of the modern road
The master road builders In Europe, gradual technological improvements in the 17th and…


