Doug Bedell — October 5, 2007, 10:54 am

A Barrier Primer

Here’s a bit of a primer on barrier terms that might be helpful to you:

Wedge barriers were named as such because of their wedge shape when viewed from the side. Sometimes called plate barriers, the most common type uses a solid steel plate angled toward the approaching vehicle. The main advantage of this type of barrier is the fast-acting mechanism. In an emergency a wedge barrier can close off a roadway in about two seconds. However, wedge barriers have been in existence for nearly 30 years with very little change to the design concept of using brute force as the primary stopping mechanism. Feedback on this design indicates that, though the barrier itself is an ominous presence, the wedge barrier has multiple-moving parts creating difficult, hazardous and often costly maintenance for the end-user.

Hybrid barriers, designed by PRO Barrier Engineering, incorporate the operating characteristics of a wedge barrier with the more open composition of a beam barrier. Coupled with PRO Barrier’s newly developed energy-absorbing band technology, the lighter-weight beam material offers a clean, sleek barrier profile without relinquishing any stopping power. PRO Barrier Engineering’s Arrestor and Lightfoot series hybrid barriers are advancing the science of anti-terrorism vehicle access control. Customers have complimented the aesthetic appeal of the hybrid design. Not only is the barrier more visually pleasing, but the simplicity of the design itself affords both ease of operation and a more cost-effective maintenance program for the end-user. Hybrid barriers have essentially only one moving part – the beam. Quarterly checks on oil levels and the two hydraulic actuators, which raise and lower the beam, are recommended. Otherwise, routine daily operational testing, and cleaning of the channel are the only requirements to ensure that the barrier is working properly.

Arrestor photo
PRO Barrier’s Arrestor hybrid barrier

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