Wire rope safety fences

BMF briefing note on wire rope safety fence. May 1998... 

Work by Candappa et al. [CAN 09] has also examined the effectiveness of flexible barrier systems, this time on the Australian road network. In this case, a total of 101.6 km of road length was installed with wire rope safety fence. The study compared the impact frequency at road sections before and after treatment. The results indicated that the barriers could be associated with significant reductions in the risk to both casualty and serious casualty rates. These reductions varied from site-to-site, but were, on average, around 76% for all casualty impacts and 77% for serious casualty impacts. The report also states that these figures align closely with work from previous International studies citing, in particular, reports from Sweden and the USA. The report concludes that the introduction of flexible barrier systems, such as wire rope is likely to produce substantial reductions in incident occurrence, in particular in cases of off-road and head-on impacts for both casualty and serious casualty impacts. 

Figure 5.18 A wire rope safety fence used on a 2 plus 1 in Ireland...

The effectiveness of two safety barrier types prevalent in the US the GA-type strong post, corrugated beam safety fence system and a wire rope median barrier have been examined by Alluri et al. [ALL 12]. In the case of the strong post system they identified that on a 1,652.3 km length of the barrier there were 8,674 cases in which the safety barrier was impacted. Of these impacts, 94.5% of the impacts... 

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See also in sourсe #XX -- [ , ]

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