THE INTERCHANGE
Once you have loaded or emptied a car at one of the industries
on your layout, where will the car go? It goes either: to another
industry on your layout, or off your layout altogether. The latter
requires hidden layover tracks, a hidden fiddle yard, and/or hidden
interchange tracks. My "waybills" send empty cars to the interchange,
and usually send loaded cars to the interchange.
The interchange is switched "at night". The yard engine pulls from
the yard the cars for the interchange, parks them, pulls the cars from
the interchange tracks to the yard, and runs the parked cars to the
interchange.
Once the cars are in the hidden, off-layout track(s), the waybills
are updated. All this adds operation and adds purpose to moving the
cars around.
SUMMARY
