proceedings against the BSC consortium over delays to the project, and track-laying on Leith Walk, Shandwick Place and Haymarket was suspended. At issue were alleged changes to BSC's work specification, including track works on Princes Street and £5 million additional costs for foundation work near Murrayfield Stadium. The BSC consortium alleged that TIE had not diverted the underground utilities in time for track-laying to begin, breaching contractual agreements and costing the consortium additional staffing expenditure. In January 2010 the independent arbiter found in favour of TIE on some points, but on most of the disputed issues ruled in favour of BSC and awarded the consortium 90% of its additional costs, estimated to be up to £80m. Delays in track laying and depot construction affected vehicle testing. By September 2009, construction was reported to be nine months behind schedule, and CAF was due to deliver the first trams from its factory in Spain. With key project dependency out of synchronisation, TIE held discussions with Transport for London about delivering the trams to Croydon to conduct operational tests on the Tramlink network. Tram vehicle testing commenced in March 2010 on the Siemens test track in Wildenrath, Germany. The tests included recreating the steep gradients of Leith Walk, and using weights to simulate the heavy passenger load expected during a Murrayfield match day. Funding crisis Following further disputes and delays, it was reported in March 2010 that Edinburgh Council was considering cancelling the contract with Bilfinger Berger. By June 2010, the project's cost had risen to £600 million. Council project managers were reported to be in crisis talks, considering options including: borrowing £55 million to fund the increased costs; phasing the introduction of the tram line, so that trams would initially run between the airport and Haymarket; and terminating the contract with Bilfinger Berger. The council asked TIE to draw up costs for truncating the line at four places: Haymarket station, York Place, the foot of Leith Walk or Ocean Terminal. Work resumed in May 2011 at priority locations, Haymarket Yards and Gogar, while the project's future was decided by the council. In August 2011 it was announced TIE would be disbanded and consultants Turner & Townsend would manage the project. On 30 June 2011, Edinburgh Council voted to continue the line between Edinburgh Airport and St Andrew Square. Costs rose to an estimated £770m, leaving the council with a shortfall of more