00:00London's ageing transport infrastructure is costing commuters hundreds of thousands of hours in delays.
00:07A London Assembly committee says problems linked to deteriorating assets are becoming more frequent and disruptive.
00:14The estimated renewals backlog at Transport for London stands at £6.5 billion, with track work accounting for around half.
00:23Data for April and May suggest delays linked directly to declining assets could cost passengers 830,000 hours across the
00:32financial year.
00:33The backlog is forecast to reach £7.4 billion by 2030.
00:38TfL says safety remains its priority, but decades of underinvestment have constrained maintenance.
