We wanted to have borders all the way around the track, but because of the compact layout we had to cut the borders to fit
We used masking tape and a pen to get the correct shape, by first marking the centre where the curves will meet and then using a piece of track to draw a straight line down the middle.
After you have cut the first one, you can then use this as a pattern, note we have keep the rumble strip in one piece.
The barriers can be cut with a craft knife. We angled the ones that are close to the other track.