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摘要

When pavements fail in this country, more often than not engineers with our transportation departments are faced with a dilemma: Do we fix this road? Or do we just patch it up for a while? These decisions are often completely guided by currently available funding and the predicted available funding for repair needs in the future. The job of the transportation engineer is as much a balancing act as it is designing and building our nation's roads and bridges. So when faced with the decision to maintain, repair or reconstruct, one that should be guided by the needs of that particular road, transportation engineers instead look to their balance sheets to help determine what treatment the road will receive.