2021 Volume 76 Issue 5 Pages I_233-I_240
To repair road pavements in work zones, it is expected to reduce the fixed work zone/repair cost per single continuous work zone, by simultaneously conducting repairs to spatially neighboring pavement sections within a single continuous work zone. Furthermore, if a pavement section, whose condition state does not reach the control limit but deteriorates, is located near a pavement section to repair, work zones in different time points can be consolidated into a single continuous work zone, by repairing those pavement sections in a single continuous work zone. In this study, we formulate an optimization problem of spatio-temporal repair synchronization policies for small-scale road pavements. Then, in a numerical study, we discuss the effectiveness of the spatio-temporal synchronization policy by comparing an independent policy, a spatial synchronization policy, and a spatio-temporal synchronization policy. The numerical study also includes a sensitivity analysis in terms of the fixed work zone/repair cost.
