Another significant role the computer has played is in transport sector. It has very efficiently utilised by the Indian Railways. Now, a commuter could get latest information about the availability of seats, the arrival and departure of trains. He can book the tickets from any counter in the city and cancel it from any counter. Road transport has taken the cue from Railways and adopted it successfully. Even air traffic control is through the use of Computers. They have helped in minimizing accidents to a great extent. Vehicles can now be tracked by using a technology called GPS (Global Positioning System).