Impact Behavior of Barriers on Nonlevel Terrain

by Hayes E. Ross, Jr., (M.ASCE), Research Engr. and Prof.; Texas Transportation Instit., Texas A&M Univ., College Station, Tex., 77843,
Darrell G. Smith, Research Assoc.; Texas Transportation Instit., Texas A&M Univ., College Station, Tex., 77843,


Serial Information: Transportation Engineering Journal of ASCE, 1981, Vol. 107, Issue 1, Pg. 69-79


Document Type: Journal Paper

Abstract: Six full-scale crash tests were conducted to evaluate the impact behavior of two widely-used roadside barriers when placed on a 6:1 side slope. Four of the six tests involved a standard W-beam rail on metal post —G4(1S) system? and the other two tests involved a three-cable barrier mounted on metal posts (G1 system). The tests were conducted and evaluated in accordance with national guidelines for testing of roadside appurtenances. Based on the results, it is recommended that the G4(1S) system not be placed on 6:1 or steeper side slopes. Placement of the G1 system on a 6:1 side slope is acceptable provided ample space exists between the barrier and the hazard it is shielding.

Subject Headings: Slopes | Highway barriers | Metals (chemical) | Traffic accidents | Full-scale tests | Impact tests | Web beams | Rail transportation

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