London and into the Home Counties with a branch to Heathrow Airport. It is Europe's biggest construction project, with a £15 billion projected cost. London is the centre of the National Rail network, with 70 per cent of rail journeys starting or ending in London. Like suburban rail services, regional and inter-city trains depart from several termini around the city centre, linking London with the rest of Britain including Birmingham, Brighton, Reading, Bristol, Cardiff, Derby, Exeter, Sheffield, Southampton, Leeds, Liverpool, Manchester, Cambridge, Newcastle upon Tyne, Edinburgh and Glasgow. Some international railway services to Continental Europe were operated during the 20th century
Groton–New London Airport Airport come from the Connecticut State Transportation Fund. Likewise, revenue derived from the airport is returned to the Transportation Fund. The airport is integrated into the statewide transportation plan, as well as the National Airport System Plan. There were 80,319 aircraft operations during 1999 at Groton–New London Airport which included military, general aviation and commercial flights. The airport has recently undergone $2,000,000 in renovations. The passenger terminal has been updated with new counter and seating areas and improved lighting. Groton–New London Airport covers an area of 489 acres (198 ha) at an elevation of 9 feet (3 m) above mean