Abstract: Introduction :Trauma remains the leading cause of death in people aged 1-44 years in developed countries. In Indonesia, trauma is the main cause of death in the 15-24 year age group and number two in the 25-34 year age group. Multiple trauma patients have a 1.9 times greater chance of mortality than non-multipletrauma patients. Organized trauma centers and trauma systems, including prehospital triage criteria and transportation plans have been shown to significantly reduce trauma patient mortality. Previous studies have shown that increasing the distance from the location of the trauma to the trauma center can lead to increased mortality. Geographical variations in EMS services maycontribute to the effect of the association between distance and mortality in trauma patients.