Local authorities and event organisers have been increasingly using the barriers since last July’s attack in Nice when Tunisian delivery driver Mohamed Lahouaiej-Bouhlel killed more than 80 people as he ploughed a rented 19-tonne lorry into Bastille Day crowds in the southern French resort.
A copycat attack on a Christmas market in German capital Berlin in December left 12 people dead and 56 others injured.
But tests on the barriers carried out by German current affairs show Umschau appear to show they would fail to prevent similar attacks in the future.
German researchers have carried out tests on concrete crash barriers
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Wed, April 12, 2017
Some of the most horrifying terrorist attacks of all time from 9/11 to Mumbai, these murderous acts killed several thousands of people and caused millions of pounds of damage to properties worldwide.
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9/11, September 11th bombings in 2001 is one of the worst and most murderous attack to date. Two hijacked planes were crashed into the Twin Towers of The World Trade Center in New York City, killing 2,800 people
Concrete barriers erected in Hamburg after the Berlin truck attack
The anti-terrorist barriers were pushed like billiard balls in both cases
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Researchers drove a 10-tonne truck into the barriers at 30mph and found the 2.5 tonne concrete blocks were simply pushed aside by the power of the vehicle, which only came to a halt when it hit a wall.
Tester Marcus Gärtner said: “It does not matter whether the truck hits the barriers diagonally or frontally: the anti-terrorist barriers were pushed like billiard balls in both cases and the impact was relatively low.”
Renè Demmler from Dresden Police said: "This makes it quite clear that more resources are needed to reduce the risk to a greater extent."
The lorry used by terrorist Mohamed Lahouaiej-Bouhlel to kill 84 people in Nice last July
Saxony's Minister of the Interior, Markus Ulbig said concrete barriers are only part of a security concept.
He said: ”No one claims that they guarantee absolute security.
“However, concrete barriers reduce the risk of damage.
“In principle, there is no 100 per cent protection against terrorist attacks."
The lorry which ploughed into a Christmas market in Berlin
Tobias Becker, managing director of barrier manufacturer Becker Bodenbaustoffe, said he was not surprised by the results of the test.
He said: “My company is not providing security concepts but stones. How these are then deployed is a matter for the municipalities.
“To simply order bollards to get security is bit of an eyewash.”
Thomas Pampel from the concrete manufacturer Stoneland Hamburg said using bollards was aimed at reassuring the public.
He said: "This is a pure placebo effect."