Safety fences

Constructional timber in freshwater areas Noise barriers, highway safety fencing, earth-retaining structures, avalanche control, livestock fence posts Utility poles (electric power transmission, telecommunications)... 

The service station comes with one complete mould carrier on its freestanding frame. It is equipped with a dedicated thermoregulator for warming of moulds destined to be inserted on the moulding line, along with all the required safety fences/light barriers, controls, and connections for air, water and electrical power. 

The concept of encapsulated packets of resin has proved most popular for polyester resin grouts. The degree of intimate mixing required is not so critical as with epoxies, curing rates are faster and installation can take place at lower temperatures. The range of applications is enormous - the fixing of reinforcement starter bars, foundation bolts, machinery and base plates, barriers and safety fences, railway and crane rails, etc. 

Modem roads are safer than roads opened before the mid-1980s due to improvements from widespread use of hard strips, safety fencing, wide single carriageways, and fewer and better designed junctions. 

Roads with median safety fences and fewer and better designed junctions have fewer accidents, all else being equal. 

Vehicle restraint systems such as safety fence and crash cushions are designed to minimise the severity of an accident when an errant vehicle leaves the carriageway rather than preventing an accident happening. 

P4-type terminal end of safety fence now used instead of ramped ends... 

Where gaps in safety fence are less than 50 m, the gaps should be closed. 

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

End Treatments to safety fences in Great Britain, European Road Safety Conference, Stephen Proctor, 1996... 

They can be used an alternative to safety fence in certain circumstances. 

Vehicle restraints (safety fence) (mentioned in 17 reports)... 

Road Safety Audit Teams are sometimes asked to audit a new typ>e of scheme, or a scheme with new design elements within it for example, introducing a diagonal pedestrian crossing at a set of traffic signals or using a new type of safety fence. 

Figure 4.3.9 Schematic diagram of a key exchange system for a multi-gate safety fence (Courtesy Ridley Pearce)...

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... 

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. 

If, however, the hazards cannot reliably be kept in check, recourse can be taken to the direct protection of the human body. The worker must be supplied with appropriate personal protective devices. Examples of hazard protection are isolating open electrical units with a locked door protecting robots by locked safety fences, transporting hazardous material in particular containers. Examples of personal protection are personal protective equipment such as safety glasses, fire resistant clothing, ear protection, work gloves and safety shoes. The protection approach has only limited value, because isolation of hazards can be undone by unsafe behavior. For example, safety fences can be climbed, safety shields removed, and personal protective equipment not worn. 

Vehicle restraint systems such as safety fence and crash cushions are designed to minimise... 

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

This advice note gives guidance on the use of passively safe posts to reduce the risk of personal injury if errant vehicles strike the posts. They can be used as an alternative to a safety fence in certain circumstances. 

Figure 6.7 A foot path blocked by the safety fence...

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