One of the top items from our process safety audits, PHAs, assessments, etc. is the lack of vehicle protection around critical equipment/infastructure. Number one target in process plants is overhead piping! It seems no matter how high we put it, it will get hit. Already this year we were told that the pipe bridge over the main raod was “high enough” and that no height signs or protection systems were needed. Months later the safety manager sent me a picture of a dump truck stuck under that same pipe bridge with its bed fully up. The accident cost them a reportable release, a visit by EPA (still awaiting the damage assessment from that visit) and around $300K in damages, not counting the lost production! Case in point… keep in mind this vehicle was traveling at a higher rate of speed than those in our plants, but the force is great even at 10-15 mph.