sentences:  Route 171 Commenced operating on 6 April 1952 at Stage 7 of London Transport's post-war "Tram to Buses" conversion scheme to replace Kingsway Subway Tram route 33.It ran as a daily service between Tottenham and West Norwood via Harringay, Manor House, Newington Green, Angel, Rosebery Avenue, Kingsway, Aldwych, Victoria Embankment, Westminster Bridge, Kennington, Brixton, West Norwood (Thurlow Arms) extended Sunday to West Norwood garage).The section between Harringay and Tottenham was new territory, not previously served by London buses.