Clean ballast is better ballast - Mud and rocks mix all too easily, fouling ballast's vital role in promoting track drainage. Cleaning ballast can restore it to good drainage.
Railway age ; 207 , 11 ; 32-34
2006
Aufsatz (Zeitschrift)
Englisch
Clean ballast is better ballast
IuD Bahn | 2006
|Clean ballast -- Essential of good track
Engineering Index Backfile | 1944