Our main research methods are outlined below. Further details are on our website www.nao.org.uk/M25-2010.
Method | Work carried out |
Document review | We reviewed the key documents relating to the procurement including the Invitation to Tender, bid summaries, the evaluations, and correspondence between the Agency and the Department. |
Semi-structured interviews | Highways Agency procurement and operational teams, and its advisers: Department for Transport Connect Plus Bidders |
Quantitative and financial analysis | We carried out financial analysis to support a number of areas of the report, including analysis of the Agency's value for money comparisons, the bids, the Agency's spend on advisers, and Connect Plus's early operational performance. |
Benchmarking | We have benchmarked various areas of the Agency's performance, including: spending on advisers procurement timetable financing margins on the M25 contract to other deals |