Clearances

CEMP-E

TI 850-02

AFMAN 32-1125(I)

1 MARCH 2000

f. Increase in Gage on Very Sharp Curves. Where curves of 12 degrees or more cannot be avoided,

finished track gage will be as follows:

Curvature Range

Track Gage

(degrees)

(in.)

_______________ __________

12 to 14

56-5/8

14 to 16

56-3/4

4. CLEARANCES.

a. Clearances will be Checked. For either new construction or rehabilitation work, the location and

position of all tracks will be checked for proper clearances before the final design is prepared and after

construction is complete. Allowances will be provided for future track surfacing (adding ballast and

raising track) and for small changes in alignment during maintenance.

b. Recommended Minimum. Minimum clearances are shown in figure 6-8 and table 6-3. Vertical

clearances are measured from the top of the rail, and horizontal clearances are measured from the center

line of track.

6-8