The Mobile Medical Team (MMT) of the VU University Medical Center is active in cases of severe traumatic injury, polytraumata and severe illness. The MMT is mostly transported by the helicopter or a specialized and equiped ambulance. Both transportation units allow close monitoring of vital functions, including respiration and ventilation, hemodynamic monitoring and stabilization of neurotrauma of the patients. The ALARM Vital Functions projects aims to investigate the change of the vital functions of trauma patients during Emergency Medical Service (EMS) and upon their arrival at the Emergency Room of the hospital. In this study, the status of vital functions will be related to survival scores and qualy's. Furthermore, ALARM Vital Functions will focus on interventions that may improve the relation between vital functions and posttraumatic outcome.