Track staff may remotely slow or stop some go-karts using what control method?

Track staff may remotely slow or stop some go-karts using radio control. A marshal or race referee can transmit a command to the kart's electronic control system when an accident, hazard, or rule violation requires immediate intervention.

On suitable electric or electronically equipped karts, remote control can reduce speed, impose a low-speed setting, or stop vehicles altogether. Some systems address one kart, a group, or every kart on the track. Operators can also use the feature to restrict younger drivers to a slower setting while allowing higher speeds for adults.

This is not the same as a hand signal or a pit board. Flags and signals communicate instructions to drivers, who must react themselves; radio control acts on the kart remotely. Laser timing measures performance and does not provide the safety command.

The technology is especially associated with amusement-park and indoor electric karts, but compatible control systems can also be fitted to combustion-engine karts. It adds a layer of track safety without requiring staff to reach a vehicle physically.