Speed-time curve of main line service differs from those of urban and suburban services on following account
A)it has longer free running period
B)it has longer coasting period
C)accelerating and braking periods are comparatively smaller
D)all of the above

Question

Quizplus · Accepted Answer

The speed-time curve of main line services differs from urban and suburban services in that it typically has a longer free running period, a longer coasting period, and comparatively smaller accelerating and braking periods, encompassing all the mentioned aspects.

Speed-Time Curve of Main Line Service Differs from Those of Urban