How Norfolk and Western uses Matisa ballast cleaner to lower tunnel tracks to required clearance; machine excavates material beneath ties of track raised during resurfacing.
To get more clearance [midline ellipsis] undercuts track in tunnels
Ry Track Structures
Railway Track and Structures ; 51 , n 3
1955
2 pages
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
Track activity continues [midline ellipsis] car purchases decline
Engineering Index Backfile | 1933
Engineering Index Backfile | 1939
Maintains special shop for [midline ellipsis] off-track machines
Engineering Index Backfile | 1954
In track maintenance [midline ellipsis] automation for short lines ?
Engineering Index Backfile | 1955
|BAR takes up second track [midline ellipsis] and installs CTC
Engineering Index Backfile | 1957