In the figure above I have shown how the uni-jointed barricades are shifted to the side to allow traffic to do the U-turn during non peak hours. The ALO or the TRO at that place are to be given charge of opening and closing of these barricades. When the gaps are opened, the smaller segment of the barricade is moved laterally as depicted in the figure. This is a helpful feature for regulating the traffic flow: the short segment helps to deflect the flow of oncoming traffic away from the gap in the median and thus enable the U-turning traffic to easily join the traffic stream of the opposite side.
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