10,000 daily riders * 365 days = 3,650,000 riders per year * $5 per fare = $18,250,000 fare per year

$3,000,000,000 cost to finish / $18,250,000 fare per year = 164 years and 4 months to break even on fares, not counting maintenance costs

i'm onboard (hah) for viewing public rail investments as a cost of internal improvement rather than as return on investment equity...but this is such a useless addition to the existing rail infrastructure and the cost of it has to be looked at like this. it's a frivolous investment, nothing else to be said