Driving simulators are used for entertainment as well as in training of driver's education courses taught in educational institutions and private businesses. They are also used for research purposes in the area of human factors and medical research, to monitor driver behavior, performance, and attention and in the car industry to design and evaluate new vehicles or new advanced driver assistance systems. Training Driving simulators are being increasingly used for training drivers. Versions exist for cars, trucks, buses, etc. Uses Novice driver training and testing Professional driver training and testing Training in critical driving conditions Testing the effects of impairment on driver performance Analysis of the driver behaviours Analysis of driver responses Evaluating user performances in different conditions (handling of controls) Assessing fitness to drive for aging drivers Testing future in-vehicle technologies on drivers or passengers (Human -Machine Interface) entertainment and fun Types Ambulance simulator: Used to train and assess ambulance drivers in basic and advanced vehicle control skills as well as how to respond to emergencies and interact with other emergency responders. Car simulator: Used to train and test novice drivers in all the skills required to pass a driver's license road test as well as hazard perception and crash risk mitigation. Modular-design simulator: Interchangeable vehicle cabins or cockpits can be configured for use as tractor/trailer trucks, dump trucks and other construction vehicles, airport-operated vehicles, emergency response and police pursuit vehicles, buses, subway trains, passenger vehicles, and heavy equipment such as cranes. Multi-station driving simulator: This type of simulator enables one instructor to train more drivers at the same time thus saving time and reducing costs... These systems are equipped with instructor stations connected to control several driving simulators. Truck simulator: Used to train and assess novice and experienced truck drivers in skills ranging from basic control maneuvers, e.g. shifting and backing, to advanced skills, e.g. fuel efficiency, rollover prevention, defensive driving. Bus simulator: is used to train bus drivers on route familiarisation, safe driving techniques, fuel efficiency techniques. It can be used for training drivers on a variety of bus models and on different types of gear transmissions. Physical simulator: Large scale simulators employ Stewart platforms and xy tables to physically move the driver around in 6-axis space, simulating acceleration, braking and centripetal forces, similar to physical flight simulators. Entertainment In the 1980s, it became a trend for arcade racing games to use hydraulic motion simulator arcade cabinets.