Me, model cars is ok if not too fast, as to lose control can, and sometimes does hurt folks. What i am afraid of is model Helicopters, I need a cage to get into to watch them ,no way Im going to stand out in the open to watch, I have flown them a bit, and am not good at it, sometimes Helo's can get a puff of wind and do all sorts of strange things, like come back at the operator, a large 5 pound Copter , blades at high speed, enough to cut you badly, nope, not me,  ';8-0 , I like my nose and hands hahahahaha  W8={0   no-no-no-no

THis appears to be a RC track, they need to be higher to see the cars  or what ever they are using, likely RC model cars

A flight of stairs up to an oblong box. Curious.