Alternative TMA carriers: crash test with a tractor, an articulated front-end loader and a rigid frame


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.



Millions for research into maritime transport and the environment

Maritime transport is a major source of emissions of harmful air pollutants and carbon dioxide. In a new project, a research team from the Swedish National Road and Transport Research Institute (VTI) and the University of Gothenburg has received SEK 6.4...


New research programme for more efficient travel

The Swedish National Road and Transport Research Institute (VTI) is playing an important role in a major new research programme to find radical solutions leading to fewer trips and more efficient travel, along with tools to enable better use of roads and...


Simulator used to practice emergency responses safely

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Simulation of cut-in by manually driven vehicles in platooning scenarios

A study in a VTI-driving simulator has showed that a platoon will be able to handle a cut in from a manually driven car. The results of this study have recently been presented at two conferences in Japan.



The five-year anniversary of European Road Profile Users' Group (ERPUG) Forum will take place at Ramboll head quarter, Copenhagen, Denmark October 19-20, 2017.


Self-driving buses in Sweden next year?

A self-driving, fossil-free bus. This idea might become reality through a forthcoming collaborative project involving the Swedish National Road and Transport Research Institute (VTI), Linköping University and several other participants. The project group aim...