22 During the Bow Road station modernisation London Underground agreed that a number of large existing assets should not be replaced. However, a number of other assets which were considered by Metronet to be "fit for purpose and not expected to require significant maintenance before the next scheduled station refurbishment" were replaced. These assets included all electrical equipment and all mechanical assets, regardless of their condition.
23 London Underground did not generally accept responsibility for additional costs arising from increases in scope compared to the original bid. London Underground complained that Metronet failed to generate evidence of increased costs. It refused to accept Tube Lines' proposal to include an appendix in each work package plan for each station that would have tracked the cost implications of London Underground requested scope additions.