Other variants have now been created, such as the higher "Ontario Tall Wall" or the "F barrier," which has a different slope to be more effective during crashes involving smaller cars and pickup trucks. "Modern vehicles have relatively short distances between the bumper and the wheel as a result, bumper contact is followed almost immediately by wheel contact," McDevitt said.Įither way, the vehicle doesn't get through the barrier and is deflected. As the vehicle moves in this direction it becomes nearly parallel with the barrier, allowing the wheels to then be able to contact the lower slope. He explained that at higher impact angles the bumper hits the barrier and begins to slide upward. McDevitt wrote in a 2000 article about concrete barriers for Public Roads magazine. "For the more common shallow-angle hits, the (New Jersey barrier)-shape is intended to minimize sheet metal damage by allowing the vehicle tires to ride up on the lower sloped face," Charles F. The original Jersey barrier is a little less than 3 feet tall, with the first 2 inches rising straight up, then 10 inches rising at a moderate slope and then the rest rising nearly vertically. More engineering goes into these barriers than might meet the eye. For some perspective: one barrier is 20 feet long, so that means 264 barriers per mile of any given project, according to Highway Operations Superintendent Ray Baca. Its most obvious purpose is separating lanes, including those heading in opposite directions.Īnd we need a lot of them. Since then it's become ubiquitous around the country due to its modular design and functionality.
This type of barrier was developed in New Jersey in the 1950s.
Valley residents may have seen them recently as our crews have set these short concrete walls up along the Loop 101 Pima Freeway to prepare a safe zone for crews to get started on a widening project, as seen in the photo above. After receiving feedback from our customers, we’ve also included holes on each side of the part that can be used to zip tie or bolt barricades together (Note: Barricades do not have to be secured together to be effective in channelizing cars).If you've ever driven through a construction zone, then odds are you're familiar with the humble Jersey barrier, even if you didn't know its name. In addition, the barricade features a large fill cap, drain cap and two mounting points to accommodate traditional pancake-style lights. Thus we achieve a 68% increase in linear feet per full truckload, significantly reducing shipping costs for our customers. Its compact size allows us to fit 24 parts on a single pallet. The newly improved smaller LCD is 32 pounds empty. However, its imposing size limits the maximum number of units per full truckload to only 80 parts. It has been one of our most popular products since it was introduced. OTW’s 42-inch LCD is an effective channelizing device. The new design functions for p rojects that require 32-inch barricades, though at a fraction of the size and cost. Cost-Effective Fulfillmentįor work zones that require 42-inch tall barricades the 42-inch LCD works great but this height is not always necessary. The angles used give the barricade a unique look and a very rigid and strong internal structure. To create a smaller version, only 32 inches high and 45 inches wide, that would function like a larger part, our engineering team designed internal bracing structures and modified the proportions of the original. It has three sloping ridges and two concave sections in between that give the barricade a rigid but light structure. Our current traffic rated part is 42 inches high and 72 inches long with a 24-inch base. What really makes this barricade different is the interior geometry that allowed for a significant size decrease while maintaining the function and impact strength of a larger barricade. This innovative new part is a hybrid of the well-known Jersey barrier shape and the more effective F-shape – widely regarded as the safest shape for drivers in a collision. Since the first concrete barriers were implemented on highways, little has changed in regard to their form. It’s smaller and lighter than any of our other jersey barriers and features the most unique geometry we have designed thus far. The new compact 32-inch LCD jersey barrier represents the next step in the evolution of temporary plastic jersey barriers.
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