Comparison of macadam and telford roads; with development of automobile traffic specifications have changed; enumeration of general requirements; ordinary surfacing of broken stone involves wear on vehicles and tires, and maintenance cost is high; bituminous treatment estimated to give total average saving of 3 centavos per mile; notes on road conditions on north-central highway, near Bogota, requiring frequent repairs; use of oil surface treatment is urged.
Powerful rival of railroads
La poderosa rival de linea ferra
Anales de Ingenieria ; 38 , n 430
1929
2 pages
Article (Journal)
Spanish
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