A Review of Pavement Performance on Virginia's Interstate System

About the report:

Extensive studies of over 800 miles of divided interstate pavements constructed prior to July 1, 1975, are reported. The studies included those of performance adequacy and the identification of certain factors which appeared to adversely affect performance. The studies showed that Virginia interstate pavements have performed very well in spite of some serious problems for which the causes have been identified and corrected in current standards and specifications. Six instances where location, pavement age, and traffic permitted valid comparisons between portland cement and bituminous concrete pavements showed the two pavement types to be performing similarly and to have incurred very similar maintenance costs. Ten recommendations relating to design, construction, and maintenance are presented. A major recommendation encourages the Department to continue to consider all the existing pavement types with appropriate modifications, for use on future construction. No major design modifications are recommended.

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