State system carries 70 per cent of total traffic and county highway 30 per cent; data on budget expenditure, cost of road maintenance per mile per vehicle, car-miles of traffic on state highways and total gasoline consumption.
Arizona knows the cost of its road maintenance
Pub. Works
Public Works ; 60 , n 7
1929
2 pages
6 Figs.
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
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