Going back to the design of the shared use footway cycle track. IM is only guidance and is ideally used for design of completely new schemes and as desired best practice when retro fitting onto the existing highway network.
A key question should be is there a need for off road provision. if so then the designers should try to provide the best solution. Cycling by Design guidance recommends and minimum of 2.0m which should cope with cycle/pedestrain flows of up to 200 per hour. From the description it looks like there needs to be great expense and environmental cost just to widen the provision by 0.55m from 2.5 to 3.05; Is this a reasonable expectation?
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