Civil Engineering Reference
In-Depth Information
Fig. 3.5 Typical traf
c congestion in downtown Los Angeles, ca. 1920s.
Source
“
Art + transpor-
tation
posted on January 26, 2012 by Larry Ehl (
http://
—
pre-crosswalk and stoplight Los Angeles
”
Fig. 3.6 Relative congestion on radial highway leading to the Chicago city center, Cook County
1943.
Source
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2
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