Bridge guardrails - What Are They And What Do They Do

Download Bridge guardrails - What Are They And What Do They Do

Post on 12-Jun-2015

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Ever wondered where those rails on the sides of bridges came from, or why they were there? We can explain it to you. There are different kinds of bridge guardrails around and where they are depends on the environment where the bridge is.

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1. Bridge Guardrails what arethey and what do they do? 2. Ever wondered where those rails on the sides of bridges came from,or why they were there? We can explain it to you. There are differentkinds of bridge guardrails around and where they are depends on theenvironment where the bridge is.Why do you see bridge guardrails at all?Bridge guardrails are there to increase safety for drivers. Withoutguardrails on the road or a bridge, it can mean drivers areunprotected and more susceptible to things like falling off the side ofa bridge into water and ruining their cars. It also decreases the chanceof driver fatality. When there is a guardrail installed on the side of abridge, it helps the driver to realise how close they are to the edge,since they are highly visible at night.What variations can you have on a bridge barrier?Generally, you can choose from low, regular or medium performancelevels. The level that is most appropriate will depend on factors suchas road alignment, road and site characteristics, vehicle speeds andtypes and traffic volumes. Its also important to consider possibleconsequences for the people in a vehicle, as well as people orproperty underneath a bridge and how they can be affected by anaccident. Risk assessments are carried out on bridges and roads todetermine what level is appropriate. Another factor that must beconsidered is the approach end of the barrier, it needs to be suitablytransitioned or terminated to prevent vehicles being speared.Its important to remember that guardrails are there to protectpeople. Bridge guardrails in particular are very important and shouldalways be installed after the right amount of testing and work. Ifanything is missed out in an assessment, it could mean the differencebetween a vehicle falling off a bridge or being saved. Consider this thenext time you see a bridge guardrail, and consider how much workwent into it being there.