What the heck do you expect? A politician sees a pot of money, it hasn't ALL been spent on what it was supposed to be spent on, what do you expect him (or her) to do, just leave it to be spent as you were told it would be spent when they collected it? No no no, money is always to be redistributed, even if it's just from one government pile to another.
Otherwise said, transportation smansportation, we gotta keep spendin' on our other stuff. See, it's more important stuff, stuff you wouldn't understand, so don't even ask.