Cardiff council haven't got a pot to piss in. Since 1997 (or 1999 depending on your point of view) CCC and WG have managed to build around 1 mile of new infrastructure road in and around Cardiff - the recently opened Rover Way/Bay link. The fact they haven't the funds to build a flyover, or complete the dualing of Rover Way says an awful lot.

Cardiff is growing rapidly and it is correct that we extend the suburbs rather than elsewhere, simply put the jobs are in Cardiff. Building them further out only increases the commute and increase commute times. however, unless the council or WG can start investing in the right areas (ahem, Metro, ahem), then rush hour traffic for drivers in North Cardiff is going to get significantly worse.