Optimization Scheme of Tradable Credits and Bus Departure Quantity for Travelers’ Travel Mode Choice Guidance

Table 1

Main variables and parameters.

Variables	Description
	The total demand for car travelers on OD pair
	The total demand for carless travelers on OD pair
	The bus travel demand on OD pair at day
	The car travel demand on OD pair at day
	The total demand for car travel on OD pair from day 0 to day
M	The number of days in the month
k	Free tradable credits to individual car travelers in that month, and
	The initial bus departure quantity on OD pair
	The bus departure increment on OD pair at day
	The bus departure quantity on OD pair at day
	The bus flow on OD pair at day
	The car flow on OD pair at day
	The total flow on OD pair at day
	The travel time on OD pair at day
	The in-bus congestion degree on OD pair at day
	The tradable credits average cost on OD pair at day
	The comprehensive cost of bus travel on OD pair at day
	The comprehensive cost of car travel on OD pair at day
	The excess tradable credits quantity on OD pair at day
	The expected comprehensive cost of bus travel at day
	The expected comprehensive cost of car travel at day