Information on design and construction; it is concluded that elevated (on columns) type of superhighways, when split lengthwise into three units (one for incoming traffic, one for outgoing traffic, and one reversible in direction of its traffic at certain times of day) is by far best type for use through built-up areas of typical or near-typical big city.
Report of committee on elevated highways
Am Road Bldrs' Assn -- Bul
1941
24 pages
Report
Englisch
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