sentences:  The remaining segment of 40's route between Union Station and Capitol Heights station, was replaced by the 96 and 97.On December 28, 2008, a new route 43 was introduced to operate alongside 42 between Mount Pleasant and Farragut Square skipping Dupont Circle station via the Connecticut Avenue underpass.Route 43 will operate during the weekday peak-hours in the peak direction to alleviate crowding problems on the 42.