Update: I decided to try something out.
I had some track that I had temporarily just laid on top of tan-bark. Lifted up a straight length of track (about 1.5m), and dug out a channel about 30cm wide. Laid a concrete slab to about 1-2cm below where I wanted the track to sit, with a slight concave. Once it set, I laid some gravel to the right level, laid the track on the gravel, and then filled in between the sleepers with more gravel.
I like this technique. Laying the track on the gravel makes it easier to smooth out the surface and adjust the height, and filling in the gaps with gravel helps hold the track in place and looks really good.
I had some track that I had temporarily just laid on top of tan-bark. Lifted up a straight length of track (about 1.5m), and dug out a channel about 30cm wide. Laid a concrete slab to about 1-2cm below where I wanted the track to sit, with a slight concave. Once it set, I laid some gravel to the right level, laid the track on the gravel, and then filled in between the sleepers with more gravel.
I like this technique. Laying the track on the gravel makes it easier to smooth out the surface and adjust the height, and filling in the gaps with gravel helps hold the track in place and looks really good.
