The Washington DC subway system (Metro) is undergoing a series of safety surges where they are either shutting down sections of track or "single" tracking over sections. Surge #6 affects the red line and I am having trouble understanding how frequently the trains will run. The documentation I have says:
- Red Line trains between Shady Grove to NoMa every 6 minutes
- Red Line trains between Glenmont to Grosvenor every 12 minutes
The Shady Grove and Glenmont stations are the ends of the lines. There are depots at the NoMa and Grosvenor stations.
How long will I have to wait for a train when I am heading from:
- NoMa to Grosvenor
- Grosvenor to NoMa
Finally, if the waits going in the two directions are different, what happens to all the "extra" trains?