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  2. List of steepest gradients on adhesion railways - Wikipedia

    en.wikipedia.org/wiki/List_of_steepest_gradients...

    Balsam Mountain Grade, Balsam N.C. Balsam Mountain, home of highest railroad station east of the Rockies; average grade about 4.0%, max 4.5%. 1 of 2 grades on southern railways former Murphy branch that are +4% grade. Balsam Mountain has seen many runaways. It is still in service operated by the Blue Ridge Southern Railroad . 1 in 22 (4.5%)

  3. Ruling gradient - Wikipedia

    en.wikipedia.org/wiki/Ruling_gradient

    The term ruling grade is usually used as a synonym for "steepest climb" between two points on a railroad. More simply, the steepest grade to be climbed dictates how powerful the motive power (or how light the train) must be in order for the run to be made without assistance. Even if 99% of the line could be run with a low-powered (and ...

  4. Grade (slope) - Wikipedia

    en.wikipedia.org/wiki/Grade_(slope)

    If one looks at red numbers on the chart specifying grade, one can see the quirkiness of using the grade to specify slope; the numbers go from 0 for flat, to 100% at 45 degrees, to infinity as it approaches vertical. Slope may still be expressed when the horizontal run is not known: the rise can be divided by the hypotenuse (the slope length).

  5. List of rail transport modelling scale standards - Wikipedia

    en.wikipedia.org/wiki/List_of_rail_transport...

    In terms of model railway operation, gauge 3 is the largest (standard gauge) scenic railway modelling scale, using a scale of 13.5 mm to the foot. The Gauge '3' Society represents this aspect of 2 + 1 ⁄ 2-inch gauge railway modelling with both electric and live steam operation. Gauge '3' corresponds to NEM II scale, also known as "Spur II" in ...

  6. Steep grade railway - Wikipedia

    en.wikipedia.org/wiki/Steep_grade_railway

    A steep grade railway is a railway that ascends and descends a slope that has a steep grade. Such railways can use a number of different technologies to overcome the steepness of the grade. Such railways can use a number of different technologies to overcome the steepness of the grade.

  7. Route availability - Wikipedia

    en.wikipedia.org/wiki/Route_availability

    Route Availability (RA) is the system by which the permanent way and supporting works (bridges, embankments, etc.) of the railway network of Great Britain are graded. All routes are allocated an RA number between 1 and 10. Rolling stock is also allocated an RA (again between 1 and 10) and the RA of a train is the highest RA of any of its ...

  8. Rail profile - Wikipedia

    en.wikipedia.org/wiki/Rail_profile

    Weight mark "155 PS" on a jointed segment of 155 lb/yd (76.9 kg/m) "Pennsylvania Special" rail, the heaviest grade of rail ever mass-produced Cross-section drawing showing measurements in Imperial units for 100 lb/yd (49.6 kg/m) rail used in the United States, c. 1890s New York Central System Dudley 127 lb/yd (63.0 kg/m) rail cross section

  9. List of track gauges - Wikipedia

    en.wikipedia.org/wiki/List_of_track_gauges

    For ridable miniature railways and minimum gauge railways, the gauges are overlapping. There are also some extreme narrow gauge railways listed. See: Distinction between a ridable miniature railway and a minimum gauge railway for clarification. Model railway gauges are covered in rail transport modelling scales.