added pit stalls 23-30 (nascar=pit_box for perimeter and nascar=pit_stall for area), and pit segments 6-7 (nascar=pit_segment)

added 22 pit stalls (nascar=pit_box for perimeter and nascar=pit_stall for area), commitment line (nascar=commitment), start-finish line (nascar=start_finish), and first 5 pit segments (nascar=pit_segment)

Added Miami-Homestead barriers

Added Miami-Homestead barriers

safer barriers

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(no comment)

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