Not only were delays in 2012/13 lowest on record, but the last year has also been the busiest for the capital's tubes. Transport for London says one of the contributing factors was the Olympics, boosting the number of journeys to one point two billion.
More top news
Angela Millington's remains were discovered by ramblers near Southend in Essex in 2014.
Angela Kelly and her daughters, 12-year-old Shanti Harbourne, and Maya-Rose Kelly-Johnson, five, were last seen in Camberley, Surrey.
Voters in part of London have reportedly been turned away from polling booths due to "problems with the lists".