- When the speed of the inspection train alone remains low, train
scheduling is inconvenienced.
- In the inspection train, dynamic status of the track, contact wire and
others while running are identified correctly, so it is hoped that
running performance is as close as possible to the operating
conditions of the passenger train.
For these two reasons, the speed of the track inspection car has
needed to be increased.
This required commercial use of a two-bogie type inspection car free
from running performance problems. To meet this requirement, we
started development for commercial use using the train STAR21, etc.
that had been manufactured on a tentative basis for high-speed
running tests. Using the achievements of this development, we
adopted a new inspection train East-i for electrical equipment and
track, capable of running at 275 km per hour, the same speed as
HAYATE and KOMACHI.