Cars weighing 3000 lb were driven against Dansk Auto Vaern concrete beam crash barrier with increasing severity of impact; curved face of concrete guard rail extended from 10 to 22 in. above ground, lower edge making first contact with vehicles, whose centers of gravity were 24 in. above ground; in similar tests with double-sided steel beam barrier, with guard rails blocked out to give 9 in. clearance between beam and central support posts car was reflected, without noticeable rolling action toward barrier, up to impact at 50 mi/hr and 18°; steel guard rail extended from 15 to 27 in. above ground, and operated at height of center gravity of car.
D.A.V. and blocked-out beam crash barriers
Great Britain. Ministry Transport -- Road Research Laboratory -- Report
1967
18 pages
Report
English
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