In August 2009, TIE began legal 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.