TM 5-628/AFR 91-44
13-4. Track centers.
13-5. Changes to clearances.
The minimum spacing between the centerlines of
Whenever changes in alinement or elevation are
adjacent tracks shall be maintained as follows:
made, clearances shall be checked for compliance
with the criteria given in this chapter. This is es-
pecially important in the vicinity of buildings,
bridges, overhead structures, platforms, and tun-
nels.
13-3
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