CEMP-E
TI 850-02
AFMAN 32-1125(I)
1 MARCH 2000
7-7
Typical type 4A cast-in-place concrete crossing................................................................... 7-10
7-8
Typical type 4B prefabricated concrete panel crossing......................................................... 7-11
7-9
Typical type 4C sectional monolithic concrete (no ties) ........................................................ 7-12
7-10
Typical type 5 full depth rubber crossing. ............................................................................. 7-12
7-11
Rubber flangeway fillers ...................................................................................................... 7-13
7-12
Lagless concrete panel crossing.......................................................................................... 7-16
7-13
Typical geotextile/subdrain installation for vehicle road crossings......................................... 7-17
7-14
Typical Drainage at road crossings. ..................................................................................... 7-17
7-15
Recommended track construction for road crossings ........................................................... 7-18
7-16
Recommended crossing road approach profile .................................................................... 7-19
7-17
Clear crossing visibility area for approaching vehicles.......................................................... 7-20
7-18
Clear crossing visibility area for stopped vehicles ................................................................ 7-21
7-19. Cooper load configuration for bridges .................................................................................. 7-23
7-20
Variation in Cooper E value with span length ....................................................................... 7-24
7-21
Loading diagram for train of 100-ton boxcars. ...................................................................... 7-24
8-1
Typical small yard with storm drainage .................................................................................. 8-2
8-2
Vehicle terminal..................................................................................................................... 8-4
8-3
Track and approach road lengths for vehicle loading ............................................................. 8-4
8-4
Concrete end ramp ............................................................................................................... 8-6
8-5
Portable multilevel ramp ........................................................................................................ 8-7
8-6
Concrete Side Ramp. ............................................................................................................ 8-8
8-7
Interchange yard ................................................................................................................. 8-10
8-8
Auxiliary tracks .................................................................................................................... 8-12
TABLES
Table
Title
2-1
Common cargo types and loading requirements .................................................................... 2-2
2-2
Common car types and design wheel loads........................................................................... 2-4
3-1
Grade design categories for main running tracks ................................................................... 3-1
3-2
Recommended minimum grade lengths................................................................................. 3-2
3-3
Curve design categories for main running tracks ................................................................... 3-2
3-4
Curve compensation for a 1 percent grade ............................................................................ 3-4
3-5
Estimating locomotive tractive effort ...................................................................................... 3-5
3-6
Design gross car weights ...................................................................................................... 3-6
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