Under contract No. DOT-FH-11-9606 the Nevada Department of Transportation (NDOT) conducted crash testing to study the capability of "Captive Column" light standard appurtenances under controlled conditions. The studies were precursors of actual on site studies and dealt with applicability under nearly ideal conditions and controlled crash guidance. Further testing will be completed under field study conditions (actual). The "Captive Column" was utilised to verify crashability. The tests were to simulate an actual automobile impact at a level angle. Two tests were run at a speed of 20 mph (8.9 m/x) and two at 40 mph (17.9 m/s) using slip bases and fixed bases. The lower section of the column broke away clean at the base and travelled with the vehicle, riding up and over the hood and top of the vehicle leaving marks at striking points. The "Captive Column", under conditions as ideal as possible, reacted exceptionally well, giving a favourable indication to test further. Tests will continue in actual service areas to further determine proper function. (FHWA)
Samenvatting