Table 3. Cost of candidate sites (Unit: 10 thousand RMB).

Station level L	${\mathit{C}}_{\mathit{j}}^{\mathbf{1}}$	${\mathit{C}}_{\mathit{j}}^{\mathbf{2}}$	${\mathit{C}}_{\mathit{j}}^{\mathbf{3}}$	${\mathit{C}}_{\mathit{j}}^{\mathbf{4}}$	First year CL	Adjust coefficient	Total cost range CL
1	900	500	300	200	1,900	±10%	1,800~2,000
2	600	300	180	120	1,200	±15%	1,000~1,200
3	400	200	120	80	800	±10%	720~880
4	300	150	100	50	600	±20%	480~720