A Two-Stage Stochastic Model for Maintenance and Rehabilitation Planning of Pavements

Table 4

Variables.

Variable	Description	Domain
	First stage decision variable for M&R action m, section n and year t in the M&R work planning
	Second stage decision variable for M&R action m, section n, year t and scenario s in the M&R work planning
	Condition index
	Auxiliary variable of condition
	Binary variable determining whether or not (0) auxiliary variable of condition is in index b
	Binary variable determining whether or not (0) the condition is in the poor zone in the VOC vs overall condition curve
	Binary variable determining whether or not (0) the condition is in the good zone in the VOC vs overall condition curve
	Auxiliary variable for the effect of poor condition on the VOC
	Auxiliary variable for the effect of good condition on the VOC
	Overall condition index
	Intensity of distress variable
	Auxiliary variable for intensity of distress
	Condition drop
	Auxiliary variable for condition drop
	Condition drop at once M&R action was performed at t

can be replaced by f, t, s, or r which are, respectively, related to fatigue, thermal distress, skid, or roughness.