How should warning devices be placed for stopped vehicles on all other roadways when lights are required?

The placement of warning devices for stopped vehicles is essential for ensuring the safety of both the driver and other road users. The correct answer specifies the placement of warning devices in a manner that maximizes visibility and adequately alerts oncoming traffic.

According to safety regulations, one warning device must be positioned at least 10 feet from the rear of the vehicle to give early warning to approaching drivers. The second device should be directed towards oncoming traffic at a distance of 100 feet, providing clear and timely notice for drivers to adjust their speed and be prepared for a potential hazard. The third device is placed 100 feet in the opposite direction to extend the warning range, further alerting drivers from both directions. This arrangement effectively creates a buffer zone around the stopped vehicle.

This systematic placement of warning devices helps to prevent accidents by ensuring that other road users have ample time and distance to notice a potential hazard and respond appropriately. It aligns with the general best practices in traffic safety management for stopped vehicles, clearly indicating the need for multiple warning devices distributed around the vehicle to account for varying traffic conditions.