London Underground's troubled Jubilee Line Extension was partially opened to passengers last month.
The official opening date of the stretch from Stratford to North Greenwich at the Millennium Dome, just four stops, was 14 months late. The £3.2bn line has been beset by problems, including a major delay in tunnelling of almost one year following the Heathrow Express tunnel collapse in 1994. The project is expected to come in some £1.3bn over budget.
It is hoped that trains will be running along the entire route by the end of October, some 19 months after the original March 1998 opening date.