TRW Automotive designs its pipe fasteners and hose bands to improve passenger comfort by reducing the vibration and noise introduced into the car interior as a natural by-product of the car's operation. The vibrations and noise are associated with the pipes used in systems for power-assisted brakes, power steering and air conditioning. The right fastening system can go a long way toward damping down these movements and sounds. TRW Automotive components also are built to last, despite the toughest operating conditions. Hinged lid covers and complete brake pipe covers, for instance, mean that the pipes are protected and fastened safely even under extreme conditions, such as in off-road use and on loose surfaces. These features have grown in importance with the popularity of sports utility vehicles and light trucks.