Birmingham International Airport should work more closely with public transport promoter Centro to get more people to give up their cars, according to local councillors.
Members of the West Midlands Passenger Transport Authority have added their support to plans to expand the airport but say more needs to be done to encourage more passengers and employees to travel by bus, train or tram.
"We want to ensure that the planned expansion of Birmingham International Airport reduces impact on road congestion and the environ-ment by providing better public transport links," said PTA chairman Councillor Gary Clarke (Con Walsall Streetly).
"Our hope is that the airport company, which runs Birmingham International, will support public transport by making adequate provision for buses, trains and light rail within the expansion project."
In 2003, the Government's Future of Air Transport White Paper set the Airport Company a target of 25 per cent of people arriving at the airport by public transport.
"We also welcome the airport's continuing support for the planned Midland Metro lines, and hope to secure a protected route for the trams alongside the A45 and within the expanding airport."
In a letter to airport bosses commenting on the Master Plan - involving an extension to the current runway, a new second runway and a third terminal - Coun Clarke set out the main issues of concern with the expansion.
He listed capacity on the surrounding motorway network, capacity on the rail network and at Birmingham International railway station, provision of bus priority in and around the site with provision of public transport services which meet the needs of employees.
"Most of these issues are acknowledged in the Master Plan," said Coun Clarke.
"However there is not sufficient information about provision.
"So we must request that there remains a close liaison with Centro officers in the coming months and years as these issues are addressed and schemes developed."
Centro, which carries out policy for the WMPTA, wants to see car parking provision minimised, thereby reducing land take, adverse environ-mental issues and traffic levels and work with partners to improve bus and rail services to the site.