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  CEMP-E
TI 850-02
AFMAN 32-1125(I)
1 MARCH 2000
6-3
Typical cross section - curved track ....................................................................................... 6-2
6-4
Typical cross section with sub-ballast layer - curved track...................................................... 6-3
6-5
Typical cross section - track with adjacent service road ......................................................... 6-3
6-6
Typical cross section - track with seotextile............................................................................ 6-4
6-7
Typical cross section with sub-ballast layer - track with geotextile .......................................... 6-4
6-8.
Clearance diagram for tangent track...................................................................................... 6-9
6-9
Location of clearance points ................................................................................................ 6-11
6-10
Example load distribution along the track............................................................................. 6-12
6-11
Example vertical pressure reduction through the track ......................................................... 6-13
6-12. Maximum track deflection and long-term track performance. ............................................... 6-14
6-13
Design wheel configurations................................................................................................ 6-16
6-14
General method for determining the frost susceptibility of soils ............................................ 6-21
6-15. Design air freezing indexes in North America ...................................................................... 6-22
6-16
Air freezing index/surface cover/frost penetration relationship.............................................. 6-23
6-17
Required subdrainage where open side ditches cannot be installed..................................... 6-25
6-18
Geotextile installation under a turnout.................................................................................. 6-27
6-19
Geotextile installation at a bridge abutment ......................................................................... 6-26
6-20
Anti-splitting devices for tie ends ......................................................................................... 6-32
6-21
Tie plates ............................................................................................................................ 6-36
6-22
Recommended minimum rail anchor application.................................................................. 6-38
6-23
Rail anchors ........................................................................................................................ 6-39
6-24
Rail anchor applications at open deck bridges and rail crossings ......................................... 6-40
6-25
General arrangement of turnouts and crossovers ................................................................ 6-41
6-26
Parts of a turnout ................................................................................................................ 6-42
6-27
Determining frog number (turnout size) ............................................................................... 6-43
6-28
Turnout design .................................................................................................................... 6-46
6-29
Diverging route connection .................................................................................................. 6-48
6-30
Ladder track layout.............................................................................................................. 6-50
6-31
Location of derails ............................................................................................................... 6-51
7-1
Typical type 1 gravel crossing with timber flangeway header.................................................. 7-4
7-2
Typical type 2 timber crossing ............................................................................................... 7-5
7-3
Typical type 3A asphalt crossing............................................................................................ 7-6
7-4
Typical type 3B asphalt crossing with timber flangeway header ............................................. 7-7
7-5
Typical type 3C 4-rail asphalt crossing................................................................................... 7-8
7-6
Typical type 3D 6-rail asphalt crossing................................................................................... 7-9
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