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- Homework Statement
- Bailey Mine Branch

Consolidation Coal Company’s Bailey Mine can produce and load 10,000 tons of coal

per shift. The mine works three shifts per day five days per week for 50 weeks out of the

year. They have a 19 mile-long track known as the Bailey Mine Branch that connects to

a former Conrail line located in southwestern Pennsylvania. The only traffic on the

branch is empty and loaded unit coal trains that consist of three locomotives weighing

200 tons each, and 100 hopper cars that are loaded at the mine to their full 100-ton

capacity per car.

The branch is laid with 132# rail, and has 5% on level tangents, 25% on tangents with a

1% grade, 20% on 6° level lubricated curves, 35% on 6° lubricated curves on a 1% grade,

and 15% on 10° lubricated curves on a 1.5% curve.

What is the total central angle through which the Bailey Mine Branch turns?

- Relevant Equations
- Length of curve is = Number of 100 foot chords or Length of curve =100 * Delta/Dc

0.3 | 19 | 5.7 | tangent track miles |

0.55 | 19 | 10.45 | 6 degree curves |

0.15 | 19 | 2.85 | 10 degree curves |

Length of Curve | = | I ? | |

Dc |