50 1-5 Event Data Recorder (EDR) System Data Element Meaning Purpose seat belt pretensioner for the driver time when the crash event occurred Time to first stage, frontal airbag, driver Elapsed time from the begin- ning of the event (T 0) to the first-stage deployment command for frontal driver airbag To analyze the time taken to deploy the frontal driver airbag (first stage) at the time when the crash event occur- red Time to second stage, frontal airbag, driver Elapsed time from the begin- ning of the event (T 0) to the second-stage deployment command for frontal driver airbag To analyze the time taken to deploy the frontal driver airbag (second stage) at the time when the crash event occurred Time to deploy, side airbag, driver Elapsed time from the begin- ning of the event (T 0) to the deployment command for side driver airbag To analyze the time taken to deploy the side driver airbag at the time when the crash event occurred Time to deploy, side curtain airbag, driver Elapsed time from the begin- ning of the event (T 0) to the deployment command for the side curtain airbag for the driver To analyze the time taken to deploy the side curtain airbag for the driver at the time when the crash event occurred Seat belt status, front passenger Buckle switch status of the seat belt of the front passen- ger, applicable to vehicles with a seat belt reminder To analyze the seat belt status of the front passenger at the time when the crash event occurred Time to deploy, seat belt pretensioner, front passenger Elapsed time from the begin- ning of the event (T 0) to the deployment command for the seat belt pretensioner for the front passenger To analyze the time taken to deploy the seat belt preten- sioner for the front passenger at the time when the crash event occurred Suppression status, frontal airbag, front passenger Suppression status shown for the frontal airbag for the front passenger, applicable to vehicles with a frontal airbag suppression switch To analyze the suppression status of the frontal airbag for the front passenger at the time when the crash event occurred