Doctor Yellow
Doctor Yellow are a group of Japanese trains which are used to test the condition of Shinkansen high-speed train lines. The trains check the tracks on the ground and also the wires which run above the trains. Their name comes from their unusual equipment onboard "Doctor", and the color that they are painted in "Yellow". The color scheme was made from reversing the color scheme (blue with a yellow stripe) used on test trains on non-high speed lines into yellow with a blue stripe.
The trains can go as fast as normal shinkansen trains, up to 270 km/h on the Tōkaidō Shinkansen.
Gallery on the doctor yellow
JR West Class 922 "Yellow Liner"
Class 923 JR West
Class 925/0 JR East
Class 925/10 JR East
A Preserved Class 922 at SCMaglev
Doctor Yellow Media
JR Central Class 922 set T2, October 1998
JR Central Class 923 set T4, April 2013
E926 East i train, August 2020
Interior of car number 1 used to inspect signalling, communications and power
