Methods and apparatus for quickly erecting a vehicle barrier acr

Details Methods and apparatus for quickly erecting a vehicle barrier acr Methods and apparatus for quickly erecting a vehicle barrier acr

1987-11-06

1989-04-25

Massie, IV, Jerome W.

Road structure, process, or apparatus

Traffic steering device or barrier

49 9, 49 33, 49 34, E01F 1300

Patent

active

048242829

ABSTRACT:
A barrier system is provided for blocking a roadway to prevent passage of a vehicle. The barrier system comprises a series of inflatable bags connected to a flexible net, and energy dissipating units connected to ends of the net. The system is normally located in a subterranean chamber when deactivated. When activated, the air bags are inflated and rise above the ground surface while pulling the net upwardly therewith. A vehicle which impacts the barrier is rapidly decelerated under the energy dissipating action of the air bags, energy dissipating units, and net.

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