Listen to this article That’s because the placement of the chicane, and the tight sequence of corners around it, has been almost forced on organisers because of its geographical location under the Turnpike road bridges. In effect, it has been necessary to “thread the needle” to satisfy FIA track safety regulations. UK-based track specialists Apex Circuit Design laid out the 5.41-kilometre anti-clockwise circuit around the Hard Rock Stadium. Its most sinuous section was Turns 13-16, which wound around the entrance and exit ramps and beneath the flyover sections of the Florida Turnpike and NW 203rd Street. Sebastian Vettel, Aston Martin AMR22 Photo by: Zak Mauger / Motorsport Images FIA regulations regarding clearance of overhead structures to the track surface meant the layout needed to dip beneath the two overpasses, shortly after rising 11 feet to cross the Southbound access ramp, creating a …