Track Centerline Spacing. Between parallel siding tracks 14 feet
shall be provided. Between parallel and mainline tracks 15 feet shall be
Minimum Tangent Distance. The minimum allowed tangent distance
between reverse curves, including crossovers, shall be according to the AREA
Manual, Chapter 5, Part 3, Reverse Curves. The desirable tangent distance
between reverse curves in yards and terminals should be 100 feet or more.
Gradients. Level or non-rolling gradients are most desirable.
necessary, a maximum of up to 1.5 percent may be used.
Track Ends. Track ends shall be provided with stops or bumpers as
follows, based on cost and traffic density:
Commercially available fabricated stops.
A timber fastened across the rails.