But, Janh, they're not going to adjust for gas-guzzlers, according to A Darling.
Public transport is no alternative for us - we don't have any, except for three buses on a Thursday between 9.50 and 11.20am which only go to our small town, not to where most people work. (And no, I've no idea who thought up that bizarre little scheme!)
Actually, I think doing nothing about congestion is a valid option. If it ever gets as bad as they say (and gridlock has been predicted for years but still hasn't happened yet!) and people don't like the hold-ups, they'll find alternatives. For now, the promotion of car-share and lane schemes could be useful.
We could also use our roads more efficiently. In Jakarta, whose traffic problems make the M25 look like a picnic in the park, the authorities have some novel ideas. The one which impressed us most was that of having one-way systems in which the direction of flow was reversed at certain times of day, or having part-time one-way roads, according to the rush hour. It sounds complicated but was simple and cheap to implement, with signs showing the times of travel in which direction.