As you stroll past the Royal Observatory in Greenwich and that place where Thor fought in The Dark World, you'll soon see driverless pods gliding next to you. That's the plan, anyway. The GATEway project, which has already been experimenting with a self-driving shuttle around the O2, will soon be taking some unusual vehicles onto south London's streets. They'll be repurposed Ultra Pods -- electric four-wheelers that already operate at Heathrow Airport. Until now they've been locked to tracks, but project organiser TRL wants to upgrade them so they can navigate Greenwich independently. Furthermore, the new trial will be used to record exactly how the public reacts to self-driving vehicles.