Seatbelts are just the starting point in occupant safety, not the total solution. Industry standards require static pull tests to insure the belts stay attached, but dynamic testing is the only way to check the true effectiveness of a belt solution. Notice the large wiring harness coming from the Hybrid III test dummies in the picture on the right.
Static load tests, like the FMVSS in progress left, test hardware, not the impact on an attendant.
Horton’s detachable three-point harness system is used in conjunction with barrier seat bolsters to confine the occupant in fairly open spaces. The detachable feature on the over the shoulder portion of the harnesses on the squad bench and the CPR seat permits the EMT to move forward to access the patient without removing his seat belt.
