There is a widening gap between what we expect of public transport and what can be delivered, given the circumstances in which we seem to expect it to operate. Our expectations for travel are increasing, both in quantity and in the standards of speed, reliability and comfort. Out-of-town shopping, leisure parks and business parks all involve more travel than did their predecessors. Cars are becoming more like mobile sitting rooms with all the home comforts such as CD player and telephone. To give all this up for a bus or train is asking a lot.