Research on Traffic Congestion Based on System Dynamics: The Case of Chongqing, China

Table 3

Initial values of the model.

Variable (unit)	The initial value
Private car ownership (10,000)	89.89
Bus ownership (vehicle)	8118
Other car holdings (ten thousand)	39.69
Purchase price (yuan)	150000
Per capita GDP (yuan/person)	34500
Total household registration population (10,000)	3392
Permanent residents (10,000)	3048
Total area of the city (ten thousand square kilometers)	17776
Purchase tax rate	0.1
Private car scrap rate	0.11
Total freight car (ten thousand)	26.01
Fuel costs (yuan)	5000
Cargo volume (ten thousand tons)	9.68
NO2 dissipation rate	0.1
Initial time	2011
Final time	2030
Time step	1
Units for time	Year