Itâ€™s traffic problems. Driving is expected to remain the primary means of travel for the people living and/or working in a big city. Look at the traffic nightmare bellow.
One of the solutions can be "smart cars," equipped with a wireless technology that lets them share how fast they're going, their direction, whether they're braking and whether an accident happened ahead. Smart cars and trucks should be able to form the tight groups of up to 20 and more vehicles, all electronically talking so they can closely follow each other without crashing. These rolling networks could relay information to specially equipped traffic signals and other "smart infrastructure," which in turn would be connected to traffic-management centers.