There are fewer reasons starting today of coming down with a case of the subterranean homesick blues when riding the New York City subways as Google began inserting planned service disruptions and other alerts into Google Maps.

Heading to work or for a night on the town in the Big Apple?

Then just consult maps.google.com or Google Maps for Mobile on Android, select a subway station, and then take a peak to see if any scheduled service disruptions are going to get in the way of getting you from here to there.

All 468 stations are covered, according to a post today in the Google Lat Long blog.

Of course, this new Google Maps service doesn’t cover spontaneous disruptions — there’s no hedge against the blues when an A train stalls, there’s a flood on the D line, or the Times Square Shuttle stops shuttling.

These subway alerts also appear when Google provides transit directions.