Answer: rapidtransit

AnswerCrossword Clue
RAPIDTRANSITCommuters' system
RAPIDTRANSITChicago 'L,' e.g.
RAPIDTRANSITTrain system
RAPIDTRANSITSubway system, e.g.
RAPIDTRANSITSubway system
RAPIDTRANSITOne of N.Y.C.'s problems.
RAPIDTRANSITThe Metro
RAPIDTRANSITCommuter's alternative
RAPIDTRANSITPublic conveyance
RAPIDTRANSITCommuter's option
RAPIDTRANSITCommuter's system
RAPIDTRANSITDriver's alternative
RAPIDTRANSITFaster way to travel