Birmingham International Airport has criticised the Department for Transport's management of the Midlands' overstretched rail service.
Richard Heard, the airport's managing director, said he was "bitterly disappointed" with the Government's approach.
The DfT had failed to take into account extra demands on the rail system which would follow the addition of a second runway at BIA, he said.
It had also failed to consider the effect a road pricing scheme in the West Midlands would have on passenger numbers, and it appeared to be asking bodies such as the airport and local councils to pay the cost of improving railways.
He said: "The consultation doesn't adequately address the future needs of the region."
The DfT has asked for opinions about the future of the Cross Country route, which links Birmingham to major cities, such as Bristol and Leeds, and the new West Midlands franchise, which includes local services and a Birmingham to London service.
But the airport made a series of criticisms in a response submitted to the DfT, signed by Mr Heard, including: * Birmingham International railway station has seen "a marked deterioration in quality and attractiveness" and must be improved. * Early morning and overnight rail services are not provided even though passengers arrive at all hours. Rail services are not "fit for purpose". * The DfT is focusing on using longer trains instead of adding new track capacity to allow more trains to run. * The findings of the 2003 Aviation White Paper, which paved the way for the airport to build a second runway, have not been taken into account. * The consultation document appears to suggest fares will be increased to reduce overcrowding on trains, at the same time as a possible road-pricing scheme may be making road travel more expensive. West Midland councils are currently drawing up proposals for road-pricing. * The DfT seems to be suggesting that stakeholders, such as the airport, should pay for rail improvements. * It is too soon to make any decisions about rail services while the Government is still deciding whether to build a brand new, high-speed rail line between London and Scotland, passing through the Midlands.
The airport said in a blunt section of its response: "Given the many 'missing pieces in the jigsaw', the airport company does not understand how an informed consultation process can currently be brought to a conclusion, and seeks urgent clarification from DfT Rail."
John Morris, the airport's head of corporate affairs, said: "There is no significant reference to the Aviation White Paper, and some of the proposals appear to contradict or hamper existing Government thinking or policy." The airport had expressed its concerns in a private meeting with DfT officials in April, he said.
"Nothing appears to have been done to integrate strategy, or take on board some of the very real concerns that were raised on April 6."
The DfT would not comment on responses received half-way through a consultation.