The problem with buses for transport is they use the same infrastructure as cars. So, as congestion increases they become less viable. Light rail really solves 2 problems, it can transport more people than an equivalent investment in roads and it increases property values by decreasing the need for parking spaces while increasing mobility.
PS: Roads are really expensive if you compare road infrastructure costs to miles driven you need a ~3$ / gallon gas tax to break even. Anything less than that and your just subsidizing cars which does not lower costs it just hides them.
PS: Roads are really expensive if you compare road infrastructure costs to miles driven you need a ~3$ / gallon gas tax to break even. Anything less than that and your just subsidizing cars which does not lower costs it just hides them.