Chapter 47: The hump and auto racks
Twenty yards of the hump and auto racks
From the crest of the hump a whole cut rolls off one car at a time, each routed to a track as it goes, and the lot counts as a single move.
An auto rack is two car lengths long and takes two slots on a track and two behind the engine, so every capacity becomes a length budget.
20 yards, pars from 5 to 12 moves. Beside its theme, chapter 47 draws on the running track, the wye and yard orders, with two breathers of plain sorting and extra cars. Difficulty runs as a sawtooth: runs of easy yards, a spike, a breather.
The yards
| # | Yard | Par | The job |
|---|---|---|---|
| 1 | Yard 47.1 | 5 | Erie on 1, Concord on 2, Albany on 3, Boston on 4. Watch for a hump yard. |
| 2 | Yard 47.2 | 5 | Boston on 1, Erie on 2, Albany on 3, Concord on 4. Watch for a running track to the far lead. |
| 3 | Yard 47.3 | 6 | Albany on 1, Concord on 2, Boston on 3, Erie on 4. Watch for a hump yard. |
| 4 | Yard 47.4 | 8 | Albany on 1, Boston on 2, Erie on 3, Concord on 4. Watch for a wye off the lead. |
| 5 | Yard 47.5 | 6 | Dover on 1, Erie on 2, Concord on 3, Albany on 4. Watch for a hump yard. |
| 6 | Yard 47.6 | 12 | The outbound Dover, Dover, Erie, Erie on Track 1, Concord on 2, Albany on 3, Boston on 4. Watch for yard orders on the clock. |
| 7 | Yard 47.7 | 11 | Boston on 1, Dover on 2, Albany on 3, Erie on 4. Watch for a hump yard. |
| 8 | Yard 47.8 | 11 | Concord on 1, Dover on 2, Albany on 3, Boston on 4. Watch for a running track to the far lead. |
| 9 | Yard 47.9 | 9 | Concord on 1, Boston on 2, Dover on 3, Erie on 4. Watch for a hump yard. |
| 10 | Yard 47.10 | 7 | Albany on 1, Boston on 2, Erie on 3, Concord on 4. |
| 11 | Yard 47.11 | 9 | The outbound Boston, Boston, Concord, Concord on Track 1, Erie on 2, Albany on 3, Dover on 4. Watch for a hump yard. |
| 12 | Yard 47.12 | 8 | The outbound Dover, Dover, Erie, Dover on Track 1, Concord on 2, Boston on 3, Albany on 4. Watch for yard orders on the clock. |
| 13 | Yard 47.13 | 11 | Erie on 1, Dover on 2, Concord on 3, Boston on 4. Watch for a hump yard, a running track to the far lead. |
| 14 | Yard 47.14 | 9 | Dover on 1, Albany on 2, Erie on 3, Boston on 4. |
| 15 | Yard 47.15 | 10 | The outbound Boston, Dover, Boston on Track 1, Erie on 2, Concord on 3, Albany on 4. Watch for a hump yard. |
| 16 | Yard 47.16 | 9 | The outbound Erie, Erie, Albany on Track 1, Boston on 2, Concord on 3, Dover on 4. Watch for a wye off the lead. |
| 17 | Yard 47.17 | 9 | Concord on 1, Albany on 2, Boston on 3, Erie on 4. Watch for a hump yard, yard orders on the clock. |
| 18 | Yard 47.18 | 11 | The outbound Albany, Erie, Albany, Albany, Erie on Track 1, Concord on 2, Boston on 3, Dover on 4. Watch for yard orders on the clock. |
| 19 | Yard 47.19 | 9 | The outbound Concord, Albany, Albany, Concord on Track 1, Boston on 2, Erie on 3, Dover on 4. Watch for a hump yard. |
| 20 | Yard 47.20 | 11 | Albany on 1, Boston on 2, Concord on 3, Dover on 4. Watch for a hump yard, a running track to the far lead. |
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