TRW is focusing its integrated safety efforts on technology combinations that offer the greatest potential to enhance the safety of drivers and passengers. The company has developed a core suite of active and passive safety technologies that are making these systems possible today. TRW's Adaptive Cruise Control (ACC) technology uses an advanced long range radar sensor to detect a target vehicle up to 200 meters in front and automatically adjusts the vehicle speed and gap accordingly. When short range radar is added ACC evolves into a safety system that can follow the vehicle in front to a complete stop and accelerate when the vehicle ahead pulls away. It also enables object detection and works as an integral part of systems such as collision warning TRW's Electronic Stability Control (ESC) monitors steering wheel angle, yaw rate and lateral acceleration using a variety of sensors to determine how well a vehicle is responding to the drivers steering input. If a potential loss of vehicle control is sensed, ESC can automatically modulate brake pressure on individual wheels and cut engine throttle to help bring the vehicle back in line with the driver's intended path. TRW's Active Control Retractor (ACR) seat belt system uses signals from active safety systems such as electronic stability control or brake assist to sense a possible loss of lateral vehicle control or an emergency stop situation. Once a potentially dangerous situation is sensed, the active control retractor seatbelt rapidly removes slack to help better position the occupant for a possible accident. These and other technologies such as active suspension or side and curtain airbags systems form the building blocks of integrated safety.