https://en.wikipedia.org/wiki/Gateway_Program_(Northeast_Corridor) , https://www.youtube.com/watch?v=hn77VrtVTSw
https://www.gatewayprogram.org , https://www.youtube.com/watch?v=xyQX5iiIrfM
https://en.wikipedia.org/wiki/Gateway_Program_(Northeast_Corridor)#Project_components
https://www.youtube.com/watch?v=kalQChm9O1c
https://en.wikipedia.org/wiki/Access_to_the_Region%27s_Core#New_York_City_Subway_extension
https://en.wikipedia.org/wiki/Gateway_Program_(Northeast_Corridor)#Related_projects
https://en.wikipedia.org/wiki/High-speed_rail_in_the_United_States#New_York