This idea of a driverless car can be found in many science-fiction novels and movies of the past, but the recent examples of the technology has shown it to be completely achievable in the near future. In fact, the technological requirements are no longer viewed as particularly challenging, and the vast majority of time currently spent on the technology is being aimed at ensuring its safety on the road. Most prototypes of wireless cars implement a set of invisible sensors - typically based on infrared electromagnetic radiation - to formulate a three-dimensional picture of the area. The generated image is meant to allow the vehicle to ascertain the distance between various objects in its path, as well as find the proper speed needed to safely maneuver around them. In addition, the three-dimensional model is needed to continuously updated in real-time, to ensure that such driverless vehicle can change its speed and direction if any new object, such as a fast moving pedestrian or bicycle rider, happens to find himself or herself in the vehicle's path. Furthermore, such vehicle must also be considerate of other vehicles on the road, and know how to properly respond without any of their automated actions posing a danger to other drivers.
One of the best examples of future driverless cars is certainly the recently-unveiled Audi, which has shown to be fully capable of driverless operation that includes finding a parking space in a parking garage and self-parking, and later starting and moving on its own in order to pick up its owner from in front of a convenience store. Also, this type of driverless cars also requires multiple sensors to be built into the environment, in order for the vehicle to be able to accurately develop the three-dimensional model of the area. However, several areas in the United States are already interested in converting their roads and equipping them with various sensors used by future driverless cars