MTA to unveil alert system for riders

An impatient looking woman sat waiting for the N train at the Times Square/42nd Street subway station, the loud music leaking from her headphones. At the sight of oncoming lights, she peered down the tunnel and slammed her fist against the wooden bench in frustration - it was the R train. Asked if the N is often late, she took off her headphones long enough to roll her eyes and nod in response.