Although I'm happy with the layout when playing with it at home, I've been conscious for a while that certain things could be improved upon when exhibiting the layout at model railway shows. The road over bridge acts as the break between the scenic part of layout and the "off stage" fiddle yard as show in the picture below.
Fiddle yard and rear of road over bridge
The problem at exhibitions is that the fiddle yard can clearly be seen under the road bridge spo