Airports take a lot more space than train stations. Living near an airport is horrible due to noise. Trains are a lot quieter than planes. You can fit more pe

Airports take a lot more space than train stations. Living near an airport is horrible due to noise. Trains are a lot quieter than planes. You can fit more people on a train than on a plane. You can load that train with more people a lot more quickly than a plane. Train stations can be underground if necessary. You'll have less pollution from the train. One downside pointed out below, it seems there is a problem with building the rail line. You need to train up high speed rail engineers, create the manufacturing base to make the thing and maintain it, and probably won't have another in the whole country. Or maybe one other in the north east.