Rail Degradation Prediction Models for Tram System: Melbourne Case Study

Table 1

List of dummy variables.

Variables	Converted dummy variable
Rail support	Concrete = 1 and steel sleepers = 0
Rail type	Grooved = 1 and T-shapes = 0
Track surface	Asphalt = 1 and concrete = 0
Rail profile	42 kg = 1 and others = 0
	57 kg = 1 and others = 0
	60 kg = 1 and others = 0
	96 lb = 1 and others = 0