but, the funds to take care of the roads are MORE than enough to cover the costs of the roadsRidership isn't high enough to justify the building of many roads, but they're built nevertheless, DC.
Do remember, that the original question was the cost of building a rail infrastruture v the cost of bu8ilding a road infrastructure we're debating here.
If we want to include all the operational costs of rails, then we must compare all operational costs of the proposed rail transit system against all cost of all roads and ALL the costs of all the cars using those roads to make a truly fair comparison.
Gas powered vehicular travel are probably the least efficient system (in terms of miles of service V cost per passenger mile) of any transporation system we have.
so much so, they use the excess funds to do OTHER things