I agree that this is the problem. But the problem is possible in part because governments are not forced to set aside funds for the future maintenance. If they

I agree that this is the problem. But the problem is possible in part because governments are not forced to set aside funds for the future maintenance. If they had to fund an annuity to cover lifetime maintenance, then the budget would prove unattractive relative to public transit projects which suffer currently from the appearance of higher up-front costs (but most likely have lower total lifetime costs).