ProTrak Library

Prototype Construction Specifications

Note: Most are pdf files. To access files, click on file, then "Open in new tab", then "Open"

1. Legally required clearances around track, bridges and structures, 1948 (AREA)
2. Legally required clearances around track, bridges and structures, 1958 (ASCE)
3. Specifications for road crossing signs
   • Dimensions and setbacks, railroads A-H
   • Dimensions and setbacks, railroads L-P
   • Requirements by State, A-N
   • Requirements by State, N-W
   • Statutory Inscriptions, by State, A-W
   • Designs and dimensions
   • Metal crossing sign, dimensions
4. Tie layouts at turnouts, switches and crossovers
   • Switch tie layout for a straight turnout, AREA
   • Switch tie layout for a curved turnout, AREA
   • Switch tie layout for a No. 6 turnout, AREA
   • Switch tie layout for a crossover, AREA
   • Switch tie layout for a turnout, AREA
5. Recommended wood trestle construction, AREA
6. Recommended wood tunnel construction, AREA
7. Track scales
   • B&M track scale capacities and locations
   • ICG track scale locations
8. Track pans and watering locations
   • NYC watering and track pan locations
9. Example of modern hump yard layout, circa 1981