ABSTRACT
Riverside County is one of the fifty-eight counties in California. According to the 2010 census data, the population of the County was more than 2 million, which makes it the 4th-most populous county in California and the 11th-most populous in the United States. A major challenge for Riverside County is to preserve and rehabilitate the roadway pavement in a cost-effective way. A detailed evaluation of the pavement management system, including the decision tree, is expected to help provide the public with quality roadways with limited funding and assist the County to make decisions that will lead to the best pavement management options that are cost effective and environmentally sustainable. Different funding scenarios and Pavement Condition Index (PCI) goals were evaluated to help dictate the allocation options for pavement preservation and rehabilitation for the County’s future needs.
This paper summarized the results for short-term 5-year funding strategies, mid-range 10-year funding strategies, and long-range 20-year funding strategies. Over 30 different budget scenarios were analyzed, the total amount of asphalt and aggregates for each scenario was calculated, the Green House Gas (GHG) emissions were estimated, and the most beneficial budget scenarios were presented in this paper. A properly balanced preservation and fixing the worst strategy will give the County the best solution based on this study.
