<page_title> Articulated buses in London </page_title> <section_title> Background </section_title> <table> <cell> 507 <col_header> Route </col_header> </cell> <cell> 24 July 2009 <col_header> Ceased </col_header> </cell> <cell> single decker buses <col_header> Replaced by </col_header> </cell> <cell> 521 <col_header> Route </col_header> </cell> <cell> 31 August 2009 <col_header> Ceased </col_header> </cell> <cell> single decker buses <col_header> Replaced by </col_header> </cell> </table>
The first articulated vehicles to be replaced were on 507 (in July) and 521, which were replaced by single-deck buses in 2009.