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DCAN 15: Vehicular Access Standards
Diverging and Merging Tapers

6.1 Major accesses (i.e. carrying more than 250 vehicles per day) on busy or high speed roads may require diverging and/or merging tapers.These allow vehicles to leave or join the priority road more safely by giving them a separate lane in which to decelerate or accelerate.Merging tapers are not permitted on single carriageways.
6.2 Design shall be in accordance with TD 42/95, DMRB4 - Volume 6.
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