text: I was in Lancaster last week and there I doubt a bus would be able to get down New Rd. The 42 bus does go via Bridge Ln as you suggest according to the route map here: http://www.lancashire.gov.uk/roads-parking-and-travel/public-transport/bus-timetables/bus-timetable-service.aspx?service=LAAO042
  I'm not great at relations so feel free to make the correction :-)