Imagine a future where most of us have easy access to cars whenever we want but few people have a car of their own. Does that sound horrifying or wonderful to you? Chris Bradshaw is an imaginative thinker about urban transport. A retired planner form Ottawa in Canada, he has long been an advocate for pedestrian rights. More recently, he has made car-sharing a passion. Bradshaw's vision for the role of carsharing is ambitious and striking. He envisages a future in which having a car of your own becomes the exception. The normal way to get access to a car would be through what he calls MASC, or 'metered access to shared cars' . This would make car-sharing, taxis and car-rental much more central to urban transport policy making than they are now. [Note: Carsharing enterprises are sometimes called car-clubs or car co-ops but don't confuse carsharing with ride-sharing or car-pooling.] He explains his ideas in a paper entitled, 'How Carsharing Can Reduce the ''D...