I am starting to move into G scale slowly since the cost is pretty significant. I have about 36' of track to start and an engine plus some rolling stock. However, I have noticed that everyone digs a trench for the roadbed. Is that totally necessary? Can you just lay down some mesh directly on the ground and place the track on top which the negate any weed or grass growing issues? Then top the track with ballast and a few long nails or tacks to keep the rails in place? I have a very flat lawn on a hill and I believe all and any water will flow down hill and not be an issue.
What are the negatives to building a railroad bed in this fashion?
Any thoughts would be helpful.
Regards,
John
Rhode Island.