Final answer:
Horn signals between the driver and tiller person of aerial ladder trucks are a set of standardized blasts that convey specific commands for maneuvering the truck safely in various situations.
Step-by-step explanation:
The horn signals used between the driver and tiller person of aerial ladder trucks are crucial for coordination and safety. These signals facilitate communication when visual cues are insufficient, particularly during reversing maneuvers or when navigating through tight environments where the driver's visibility may be restricted. Aerial ladder trucks, used by fire services, have a driver at the front and a tiller operator at the rear who steers the back end of the vehicle. The use of horn signals helps ensure the truck can maneuver safely without the risk of accidents or miscommunication.
Commonly, one short blast signifies 'stop,' two short blasts mean 'forward,' three short blasts indicate 'back,' and a continuous blast signals an emergency. It is essential for both the driver and the tiller operator to be well-versed in these signals to ensure an efficient and safe operation.