I noticed this symbol while following along on Foreflight one day on an airliner and, like Doug, wondered what it meant.
The answer was found on page 62 of the Aeronautical Chart User's Guide here:
https://www.faa.gov/air_traffic/fli...aero_guide/media/Chart_Users_Guide_12thEd.pdf
It means "unusuable route". Not sure why there would be an unusable route published, but seems there's a few of them.
More importantly, I learned a few other things I didn't previously know about charts just from scanning the guide. Not a bad review for those who haven't done it recently.
The answer was found on page 62 of the Aeronautical Chart User's Guide here:
https://www.faa.gov/air_traffic/fli...aero_guide/media/Chart_Users_Guide_12thEd.pdf
It means "unusuable route". Not sure why there would be an unusable route published, but seems there's a few of them.
More importantly, I learned a few other things I didn't previously know about charts just from scanning the guide. Not a bad review for those who haven't done it recently.