Freight Model Parameters

Mode Choice and Shipment Size Choice Model Parameters

These are the parameters used in the joint mode choice and shipment size choice model to decide the chosen mode as well as the shipment weight. The parameters are contained in the CRISTAL_Model Parameters_MC_ShSize.json file

These parameters are read in in the MT_Path_Choice_Methods.h header file.

Category	Parameter Name	Description	Default	Data Type
Commodity	DiscountBulk	The discount rate per year for bulk goods	nan	float
	DiscountInt	The discount rate per year for intermediate goods	nan	float
	DiscountFin	The discount rate per year for finished goods	nan	float
	DiscountAnimals	The discount rate per year for animals	nan	float
	DiscountOth	The discount rate per year for other types of goods	nan	float
	dppBulk	The unit value of bulk goods	nan	float
	dppInt	The unit value of intermediate goods	nan	float
	dppFin	The unit value of finished goods	nan	float
	dppAnimals	The unit value of animals	nan	float
	dppOth	The unit value of other types of goods	nan	float
	AirDamageRatio	The percentage of damaged goods for air mode	nan	float
	TruckDamageRatio	The percentage of damaged goods for truck mode	nan	float
	RailDamageRatio	The percentage of damaged goods for rail mode	nan	float
Cost	_Modecost	Cost coefficients for different modes, including truck, rail, air, and courier	nan	float
Distance	RailMileRatio	The ratio of rail delivery distance to the highway distance	nan	float
Mode Choice	_Beta	The coefficient matrix that corresponds to different modes (truck, rail, air, and courier) and influencing factors, including the constant value, different commodity types, commodity characteristics, commodity values, shipping distance, and the number of employees	nan	float
Model parameter	_Theta	The dependence parameter of the copula function	nan	float
Rate	TruckRate_200mi	Truck rate in $/ton-mile when delivery distance is within 200miles	nan	float
	TruckRate_200_500mi	Truck rate in $/ton-mile when delivery distance is between 200 and 500miles	nan	float
	TruckRate_500_1000mi	Truck rate in $/ton-mile when delivery distance is between 500 and 1000miles	nan	float
	TruckRate_1000_1500mi	Truck rate in $/ton-mile when delivery distance is between 1000 and 1500miles	nan	float
	TruckRate_1500plus	Truck rate in $/ton-mile when delivery distance is more than 1500miles	nan	float
	AirRate_1000mi	Air rate in $/ton-mile when delivery distance is within 1000miles	nan	float
	AirRate_1000_2000mi	Air rate in $/ton-mile when the delivery distance is between 1000 and 2000miles	nan	float
	AirRate_2000plus	Air rate in $/ton-mile when the delivery distance is over 2000miles	nan	float
	RailRate_200mi	Rail rate in $/ton-mile when the delivery distance is within 200 miles	nan	float
	RailRate_200_500mi	Rail rate in $/ton-mile when the delivery distance is between 200 and 500 miles	nan	float
	RailRate_500_1500mi	Rail rate in $/ton-mile when the delivery distance is between 500 and 1500 miles	nan	float
	RailRate_1500_2000mi	Rail rate in $/ton-mile when the delivery distance is between 1500 and 2000 miles	nan	float
	RailRate_2000plus	Rail rate in $/ton-mile when the delivery distance is more than 2000 miles	nan	float
Shipment Size Choice	_Gamma	The coefficient matrix that corresponds to different shipment size groups and influencing factors, including constant value, different commodity types, commodity characteristics, commodity values, shipping distance, and number of employees	nan	float