According to Buses Magazine, Public Transportation Safety International Corp. is pushing school bus manufacturers to fit the MDZ Shield in order to reduce the risk of children being crushed by the rear wheels of their vehicles.

CEO Mark B. Barron says 55 American children have been killed and many more injured over that past decade in accidents in the school bus danger zone.

To reduce the gap around the dual rear wheels, PTS has developed a one-piece polyurethane shield in partnership with Pacific Metal Fab. To counter resistance from school bus manufacturers reluctant to increase costs in a highly price competitive market, PTS says it would bear all tooling costs.