data;

param p_city := PITT ;

set D_CITY := NE SE ;
set W_CITY := BOS EWR BWI ATL MCO ;

set DW_LINKS := (NE,BOS) (NE,EWR) (NE,BWI)
                (SE,EWR) (SE,BWI) (SE,ATL) (SE,MCO);

param p_supply := 450 ;

param w_demand :=
  BOS  90,  EWR 120,  BWI 120,  ATL  70,  MCO  50;

param:      cost  capacity  :=
  PITT NE    2.5    250
  PITT SE    3.5    250

  NE BOS     1.7    100
  NE EWR     0.7    100
  NE BWI     1.3    100

  SE EWR     1.3    100
  SE BWI     0.8    100
  SE ATL     0.2    100
  SE MCO     2.1    100 ;