If I had my way, I'd close down LGA and DCA and build dedicated trains between the airport and the city centers, similar to HKG, BKK, and NRT. I find it absurd that airlines schedule identical flights between co-terminals and another city with two smaller planes when one larger one can do the job.
And I'd build high-speed (220 mph) trains connecting Boston, Hartford, New York, Philadelphia, and DC, eliminating flights between those airports, similar to what happened to Germany.
With both solutions, the skies in the NE would be less congested, and delays wouldn't be as bad as they are today in the NYC area.
Bear in mind that I live just 4 miles from DCA. Yes, I'm spoiled for my personal trips; however, I'd still like it closed for the long-haul.
- Pat