The Research Infrastructure for Trauma with Medical Observations (RITMO) effort aims to combine large-volume multimodal sensor, intervention, and medical outcome data obtained from trauma patients during the early post-injury period into a single database. By using de-identified patient data, researchers can ensure that patient privacy is protected. Data collected in RITMO will support the DARPA Triage Challenge program to identify novel physiological signatures that could enhance triage decision-making in austere, complex, and mass-casualty settings.