Joseph Lynskey was determined to overcome his fear and reclaim his life as a New Yorker who enjoys the city in full. On Tuesday, he filed a lawsuit against the city and the M.T.A.

The MTA struggled to move millions of New Yorkers who were called back to school and work on Tuesday after the city was buried in snow.

In two recent incidents, teenagers drove trains briefly, and in one case drove a G train into another train. A 14-year-old ...