TMAs (Truck Mounted Attenuator) are used as mobile protectors for road work zones. They are typically mounted on trucks. In this project the VTI has crashtested TMAs installed on alternative TMA carriers, i.e. a tractor and an articulated front-end loader. Later on, the project was enhanced with an additional crash test on a steel frame intended for transportation on trucks and, in cooperation with Autoliv, a further crash test where the risk of whiplash injuries was to be studied. The latter was done by repeating the crash test with a TMA on a tractor and having a BioRID crash test dummy in the driver seat. The test was run according to NCHRPR 350 3-52 procedure. In an external elongation of the project, sled tests were run at Autoliv; the results are included in this report as an annex. The outcome of this project is a recommendation to allow certain types of alternative TMA carrier vehicles, under the condition that the vehicle weight limits are still met. (Author/publisher) This report may be accessed by Internet users at http://www.vti.se/EPiBrowser/Publikationer%20-%20English/R684A.pdf
Abstract