|Apex and track-out curbs and rumble strips are being formed around the circuit using jigs and molds for their profile and surface texture. These curbs will define track limits and help prevent wheels going off track and debris coming on track.
The initial curbs will be formed at select corners and painted for visibility. Once the first curbs are done they will be tested to ensure they function in both directions, as intended.
A small crew can build a section of curbs in ~3 days, working through the off-season while weather permits.
There is more to this story -- for those interested in track safety designs: Click Here.