Aggravation on the 3 Train This Morning

On my long journey to work, have a very short trip on the 1, 2, or 3 train one stop from Times Square to 34th Street on 7th Avenue.  Almost all of the time it takes no more than 2 minutes to make this connection to NJ Transit.  Today it was stuck for 20 minutes between the stations.  What was the problem?  SIGNAL PROBLEMS.

I think there should be a Nobel Prize for Engineering awarded to anyone who can permanently solve the signal problems on subways and commuter railroads.