This course consists of two ovals side by side, with the first oval leading to a fall-off section above the starting line and the second oval going back down.
The rate coefficients and products of many high-temperature gas-phase reactions change if an inert gas is added to the mixture; variations on this effect are called fall-off and chemical activation.
Public inebriation, nudity, and calls for assistance for unconscious individuals are common; a fall-off due to increased policing in the 1990s proved short-lived.