ERP is only useful..for now.
look at the number of cars on Singapore's roads now, and this is
not including the ever-growing immigrants/professional workers here
who just might be able to purchase cars in a few years time.
guess what? if you have like, a million cars running all over
Singapore any time, ERP wont be able to stop only the problem,
because cars will just take the routes which does not have ERP!
(logical)
and so what, you gonna start to build ERPs EVERYWHERE?
imagine, ERP turn on, pass through 1 time $2 or so, and in
particularly crowded places like rochor..imagine the $2 notes
flying up into the sky, and landing into god-knows-whose
pockets.
