Bright and reflective yellow stripes have finally been pasted by authorities concerned on large plastic barrels of water that are being used as crash barriers at a diversion on D Ring Road.
Gulf Times had reported on September 18 that the black barrels posed a hazard by themselves due to the absence of reflective markings that would to make them stand out in low light conditions.
“I had a miraculous escape some weeks ago as I almost crashed into the water barrels at night,” a motorist had told Gulf Times then.
The practice across the world is either to use barrels of bright colours, such as orange or yellow, or paste bright reflective strips to make them visible in low light.
The crash barrier in question is located near Birla Public School, when one proceeds on the new North Road towards the Soudan area.
The nine black plastic barrels, lined up one after the other, constitute a crash barrier at the point where the road diverges to right, proceeding to Al Attiya and Midmac Interchanges and other interior roads.
The logic behind using water barrels as crash barriers is that if a vehicle hits them, the water inside shoots in all directions, and dissipates the kinetic energy from the crash, thereby reducing damage to the vehicle and its occupants.
Energy is dissipated in a linear fashion as each barrel in a line of them requires the same amount of energy to throw its water upwards.
http://gulf-times.com/site/topics/article.asp?cu_no=2&item_no=397456&version=1&template_id=36&parent_id=16
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