Today it seems the UK OSM data appears to have a lack of lane assistance tags…
(In fact they are almost non-existent compared with Germany for example)
i.e. tags ‘turn:lanes’, ‘destination’ and ‘destination:ref’
It means that drivers using OSM based sat-navs and similar smart-phone applications are at a disadvantage here in the UK. There are rarely any arrows nor signs to indicate suggested lane choice at important junctions.