§ Mr. Peter Bruinvels
asked the Secretary of State for Transport whether full tests have now been carried out on 263W the Marconi RCMM, remote computer maintenance and monitoring system; and if it is being considered for use throughout Britain's motorways and tunnels.
§ Mrs. Chalker
I assume my hon. Friend is referring to the Marconi environmental control system installed in the Holmesdale and Bell commons tunnels on the M25 to monitor visibility and pollution from exhaust fumes. The system has been tested and accepted.
A similar Marconi system has been accepted for the A1(M) Hatfield tunnel which at present is under construction.
Wider use of such systems may be considered, where appropriate, and would be the subject of specification and competitive tendering.