Recreating board game track

Hi,

I've been hitting brick walls with an idea I've had for a while now so wanted to check if anyone could give me any ideas on where I might be going wrong.

Basically, I'm looking to recreate a board game based on Formula One and I'm falling at the first hurdle when it comes to recreating the track, which for my early tests is this:



I've managed to create the start-finish straight by essentially creating a rectangular grid of TrackPieces but it...

Recreating board game track