Construction costs:
The cost of the rail network using existing ROW is 625 x 7 = $4.4 billion
The cost of 100 stations with extended facilities is $700 million
The 10,000 parking rails (100 per district) cost $500 million
The infrastructure cost for the "Dial-a-RUF" system is $900 million
50,000 MAXI-RUFs are bought at a cost of $45,000 each, totalling $2.3 billion
50,000 public RUFs are bought at a cost of $15,000 each, totalling $750 million
Total construction costs: $9.55 billion