Here are some photographs taken of various scenes on our exhibition layout. Many people ask what the rock wall is made of. It's ceiling tile, scored about 2" from the edge then broken off. Glue all the pieces together and, if necessary, roughen face with a steel brush. Add bushes and grass to taste.
The signal gantry is a working model made by John Houghton. There are some fancy electronics and Arduino circuits controlling the lights and if an engineer does fail to heed them he/she will, without a doubt, have some sort of accident, either a derailment or a head-on collision, a.k.a. a 'cornfield meet'.