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eliteauto wrote:wtf Trinis living in TRINIDAD cannot spell the name of the most popular local beach correctly
tr1ad wrote:Chemical....
yuh from d whust?
Chemical wrote:eliteauto wrote:wtf Trinis living in TRINIDAD cannot spell the name of the most popular local beach correctly
Easy does guy..just a typo error.
tr1ad wrote:is chaps or chups yuh really wha say
Highway cables can be deadly
Story Created: Aug 18, 2010 at 11:55 PM ECT
Story Updated: Aug 19, 2010 at 1:30 AM ECT
The proposed installation of high-tension cable barriers is an excellent crash prevention measure for rural and confined areas with low to moderate vehicular speeds (non-highway speeds) such as hilly/mountainous areas along the north coast roads in Trinidad and similar hilly terrains in Tobago.
Metal beam barriers and concrete barrier systems are best suited for highway environments, for both the shoulders and the more critical medians, in order to prevent vehicles crossing over onto opposing lanes.
The practice of utilising the metal beam barriers and concrete barriers systems on highways has been used very successfully in North America, Europe and South America.
The potential problem with high tension cable barriers (which are used on highways where speeds are high) is the very high pressure certain situations generate. This pressure (P=F/A) can be defined as force over (divided by) area. A vehicle travelling along our nation's highways (80 km/h-plus) would have a certain force (calculated by the weight and size of the vehicle multiplied by its speed). The area is defined as the surface area of the barrier system (either high tension cable barriers, metal beam barriers or concrete barriers). The smaller the surface area (such as a couple of one-inch (25 mm) diameter cables), the higher the pressure, and the larger the surface area metal beam barriers (12 inches or 305 mm) and concrete barriers (minimum of 34 inches or 850 mm) the lower the pressure.
Vehicles travelling along our nation's highways at speeds in excess of 80 km/h, when coming into contact with the proposed high-tension cable barriers, can be sliced by these cables (like a hot wire cutting through cheese). This can result in severe injuries.
I would like to suggest that a risk analysis be undertaken prior to the procurement and installation of the high tension cable barriers on our highways.
Jan Landreth-Smith
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