Joe Biden has announced more than $16 billion dollars in new funding to improve Amtrak's aging Northeast Corridor, the nations busiest passenger rail line. The new funding is part of the $66 billion allocated by the Bipartisan Infrastructure Bill for rail, and will help increase speeds, modernize tracks, and allow for larger capacity throughout the corridor.

Railroad track switches are used on rail systems. They change the railroad track's direction from one track to another. When trains go over the switch, depending on it's alignment, the train goes to one...