The Effect of Simultaneous Pavement Repair in Urban Highway Network

Abstract

The repair range must be appropriately decided for effective pavement management. Pavement deterioration depends on its location, therefore it is optimal to repair only deteriorated place (independent repair policy), if life cycle cost is composed of only repair cost. However, sometimes, deteriorated place and not-deteriorated place are simultaneously repaired (simultaneous repair policy), because of traffic delay during repair activities. This paper consider traffic delay cost during pavement repair in life cycle cost, and describe the effect of simultaneous repair policy. As a result of case study implemented to Hanshin Expressway, simultaneous repair policy is optimal when traffic delay occurs, but independent repair policy is optimal when traffic delay does not occur. Simultaneous repair policy decreased 37.5 thousand billion yen per a year of its life cycle cost.