Phoenix Standard Operating Procedures (SOPs) Volume 2 Practice Test

When responding to emergencies involving traffic, proper placement of cones or flares is critical for ensuring the safety of both responders and drivers. The correct distance for placing these safety devices at a speed of 40 MPH is 105 feet. This distance is based on established guidelines that recommend placing warning devices far enough ahead of the emergency scene to provide adequate warning to oncoming traffic and allow drivers enough time to respond safely.

At 40 MPH, vehicles are traveling approximately 58 feet per second. Therefore, placing cones or flares 105 feet away gives enough time for drivers to slow down and navigate through the area securely. The choice of 105 feet takes into account the need for visibility and reaction time, ensuring that the area is marked appropriately to protect both personnel and the public from potential accidents. This distance is part of standard operating procedures aimed at promoting safety during emergency responses.