Traffic and operating subjects receive major attention; Pennsylvania tests of cable guard rail; machine mixing of concrete; new data on tire and wind resistance; bond issues or pay-as-you-go financing contrasted; traffic analysis; safety; highway economics; financing road work; pavement slab action; maintenance; and maintenance equipment; fills in peat marshes.
Annual meeting of highway research board
Eng. News-Rec
Engineering News Record ; 101 , n 25
1928
3 pages
Article (Journal)
English
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