Crashworthy omni-directional bases are designed to meet NCHRP Report 350 criteria regardless of which direction they are struck.
Q: Should we use omni-directional breakaway bases everywhere?Ī. Crash tests of luminaire supports with pickups is very limited (we are not aware of any such tests) so we have no way to assess the potential for roof crush except through full-scale testing. The old “rule of thumb” limiting luminaire supports to 1000 pounds cannot be relied upon because vehicle structures have changed and MASH now requires the pickup truck be used.
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Based on experience in reviewing both full scale testing and pendulum tests of breakaway supports, we do not see how pendulum testing can answer those questions. Whatever test method you use must evaluate the roof crush and windshield damage as required in MASH. If they are totally new designs, then they need to be tested under MASH. The status of pendulum testing under MASH is undetermined – if the bases can be considered modifications of bases tested under Report 350 then we will agree to review pendulum testing done under 350 criteria (until 1/1/11). Q: Can we still use pendulum tests to assess breakaway performance of sign and lighting poles?Ī. Work zone signs may be mounted on barriers if you use roll up signs on fiberglass supports as they have less potential for causing serious damage. Larger passenger vehicles as well as their occupants may contact objects on top of barriers under severe impact conditions. The point is to minimize the potential for broken poles to fly into the opposite roadway.
If you transition to a vertical face and/or taper the width of the barrier you can provide additional offset to the pole. The potential for a pole being struck by the box of the truck can be minimized by making the barrier wider.
A rigid pole may or may not break off, but there is no safety advantage in making it easier for the pole to break away and fly into the opposing travel lanes. Mounting any pole on top of a median barrier should be avoided because trucks will lean over the barrier upon impact and hit whatever is on top. Q: SHOULD WE USE BREAKAWAY BASES FOR SIGN AND LIGHT POLES MOUNTED ON CONCRETE MEDIAN BARRIERS?Ī. Is it OK to add a decorative shell or casting to a breakaway light pole to make it more aesthetic?.Does the combination have to be crash tested? We want to add lights, a battery, and a solar panel to our school zone sign.What is the Janudeadline for breakaway supports?.Should trees, poles, or other fixed objects be allowed in a roundabout?.Should we use omni-directional breakaway bases everywhere?.Can we still use pendulum tests to assess breakaway performance of sign and lighting poles?.Should we use breakaway bases for sign and light poles mounted on concrete median barriers?.Releasing bombs and missiles that strike their targetsīefore the thunderous boom of his passage can catch up.Frequently Asked Questions: Breakaway Sign and Luminaire Supports While other pilots focus on aerial acrobatics that confound the enemy,īreakaway is content to speed over a fight at seemingly impossible velocity, He is one of the very few among the elite autobot flyers and he is unmatched *Serving in an army of robots tied to the ground makes Breakaway unique.
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*This Movie Collector’s Series Was Released In “2009” from Hasbro. Figure (s) and all accessories inside packaging are perfect and come sealed in their “Original Factory Released Format Packaging”!!** * Please Note “Product Information”: This Action Figure Has a 13+ Years Age Factor and are no longer available from th e Manufacture (“Discontinued”), Packaging “May Have” Slight Shelf Wear (Slightly Bent Cardboard Corners, Dents in Plastic Areas, Minor Scratches, Also Some Packaging Clarity Distortion “May Occur”, Due to aging Packaging Only etc.).
***Please View Photographs!***Breakaway “Deluxe Class Autobot Revenge of the Fallen Series” ! **This Item Is No-Longer Available From Hasbro** Breakaway “Deluxe Class Autobot Revenge of the Fallen Series” ! (Transformers Movie Collector’s Series) “Rare-Vintage” (2009)
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