Depression of central roadway, and widening to provide for service roadways; traffic congestion in Queens; in each case of grade separation, two important problems given require attention; depress, rather than elevate, one of cross-roads; essential provisions on Grand Boulevard and Concourse, New York.
Grade separations at arterial highway intersections
Am. City
American City ; 39 , n 2
1928
3 pages
2 Figs.
Article (Journal)
English
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