Delta Scientific
The HD300 barrier will stop a 15,000-pound vehicle traveling 50 mph. Available with either a fully electric or hydraulic control unit, remains in its 24-inch foundation upon impact and the opening stays blocked, providing a multiple hit capability.
Protimeter: Aquant
Sensaphone: Sentinel PRO
KI: Passel
Sielox: AnyWare
Global Drain Technologies: 2000 T-Series Threshold Drain