Automated Horn System

Improve the Quality of Life in Your Community with the Automated Horn System (AHS™)

AHS™ is an innovative railroad signaling device that significantly improves safety for motorists and pedestrians and dramatically reduces the amount of noise pollution created by train horns along rail corridors in populated areas.

How It Works

AHS™ is a stationary horn system activated by the railroad-highway grade crossing warning system.

• AHS Research & Study
• AHS and Train Horn Comparison
• AHS Installations
• AHS in Action

The AHS™ is mounted at the crossing, rather than on the locomotive, to deliver a longer, louder, more consistent audible warning to motorists and pedestrians while eliminating noise pollution in neighborhoods for more than 1/2 mile along the rail corridor.

AHS™ sounds like a train horn because the tone modules in the AHS™ horns were digitally recorded from an actual locomotive horn. After receiving the signal from the railroad's track circuit warning system, AHS™ mimics the train horn warning by cycling through the standard railroad whistle pattern until the train reaches the crossing.

Once the train has entered the crossing AHS™ stops sounding its horn. A confirmation signal notifies the locomotive engineer that the AHS™ is functioning properly.

When the locomotive engineer sees that the confirmation signal is flashing, he will not be required to sound his horn unless he detects an unsafe condition at the grade crossing.

Coordination with the railroad operating company is essential since the AHS™ is directly connected to the railroad's crossing signal-warning system. The railroad operating company must issue instructions to their train crews regarding the sounding or non-sounding of the train's horn.

	Railroad Controls Limited 7471 Benbrook Parkway Benbrook, Texas 76126 817-820-6300 Fax: 817-820-6340 marketing@railroadcontrols.com