Page:Graphic methods for presenting facts (1914).djvu/87

 Railway Age Gazette

Fig. 65. Train Chart for Bald Eagle Valley for February 3, 1912

This chart shows the train movement over an extremely busy single-track railroad. Time is indicated on the horizontal scale of the drawing, and distance on the vertical scale. Trains in opposite directions must pass at points where there are turnouts, as can be seen from the chart itself