Typical Bristol transit route as created by the planner. Quite a reasonable route, there are now broad shared pavements on most of the parts of the A403 used, probably excepting the first railway bridge. The second bridge, over the entrance to the former Avalon works, now the incinerator (sorry energy from waste) site has a short section of narrow pavement. Direct but somewhat industrial, there are more attractive ways through NW Bristol. Still with 160 odd kilometres of mostly rural perhaps some industrial estates, warehouses, docks, car pounds, tank farms, incinerators and so on make a refreshing and memorable change.
In Lawrence Weston I would use NCN41 past Saint Bede's school rather than Kingsweston Lane.