We seem to be becoming more and more restricted as each day goes by.There are security cameras and barriers every where we look. All being introduced under the guise of public safety. True in some cases. There is justification for some drastic measures to be taken, such as in the case of separating and pedestrian from disastrous confrontation. This is now th ear ther they are a temporary measure, or a permanent solution they are now very widespread. In certain countries the concrete barrier is replacing the traditional metal barriers that run down the centre reservations of roads and motorways. Barriers also continue to be used to block off site entrances and provide temporary traffic channeling at shows and events.
Concrete safety barriers are used on the roads to reduce the risk to vehicles and their occupants. The main purpose of this is to ensure that the vehicles do not cross the barriers and collide with oncoming vehicles. Since 2005 the UK Highways agency has been using the Dutch step concrete barrier on new and existing roads. The reason for this has been threefold; they reduce the likelihood of vehicles crossing the central reserve; there is less maintenance work required following a collision; and the barriers are virtually maintenance free for 50 years. When this is compared to the traditional steel barriers there is no doubt that in most cases it is the preferred solution.
TVCBs are another type of barrier that is used on the roads. These are interlocking blocks that are used where temporary traffic channeling is required. These units interlock so that if a vehicle impacts the barriers they will move as a whole unit which minimises the chances of a vehicle hitting the barrier head on.
Concrete barriers have come along way since their inception. With new technology and new firms entering the market there is continuing growth in their uses and the benefits they can offer us.
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