Protective wall made of individual protective wall
elements for the protection of traffic routes

(10) US 2016/0053614 (22) Feb.18,2015 (43) Feb. 25, 2016 (71) Herrenknecht AG, Schwanau, (DE) (57) The invention relates to a protective element for connecting to a concrete element (10) of a tunnel...

Both tests were passed in the lowest impact security class “A” (ASI<1.0), which means the highest degree of security for the passengers of a vehicle in accordance with DIN EN 1317. The company...

Unfortunately, graffiti quite rarely appears to be art. Mostly, it is vandalism and provocation through slogans meant to attract attention - and besides using inappropriate places. Spray paints,...