I can't work out how they cross the course again. Google street view isn't helping, but there doesn't appear to be bridge of any kind so either a) only one rider on the course at a time or b) they've built a cyclocross style flyover.
I obviously hope for the latter.
Maybe turning left each time at the crossroads rather than going straight across? They could diagonally separate the course.
@andyp started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
I can't work out how they cross the course again. Google street view isn't helping, but there doesn't appear to be bridge of any kind so either a) only one rider on the course at a time or b) they've built a cyclocross style flyover.
I obviously hope for the latter.