Side Impact Integration System - TRW active safety technologies such as Electronic Stability Control (ESC) or Active Dynamic Control (ADC) are the first line of defense to avoid or mitigate the impact of vehicle accidents. Should an accident be unavoidable, passive safety systems such as TRW's Active Control Retractor work in concert with active systems to better position occupants. In the case of a side impact collision TRW's curtain or side and thorax airbags inflate to offer a greater measure of protection.