Department for Transport, Traffic Signs Manual/Chapter 3… (2008)
“ It might be better to provide parking bays partially on the footway on both sides of the road rather than parking bays wholly on the footway on one side with carriageway parking on the other. This would evenly distribute available footway width on both sides of the road, although it would not be practicable if one footway is very narrow or non—existent. In some roads, the provision of parking bays partially on the footway on one side only might be sufficient to allow safe passage of through traffic. ”
