Diagram - Reverse Entry System (Main Gate).pdf

This is a site plan/architectural diagram depicting a proposed wrong-way vehicle detection system at a gated facility entrance. The plan shows a 297-foot by 31-foot detection zone (shown in purple) positioned at the inbound traffic lanes leading to a gate house, with provisions to expand the detection area to include a third lane if needed. The diagram identifies four key components: a base perimeter fence (marked in red), a manual swing gate (marked in yellow), a traffic island separating inbound and outbound lanes, and the proposed detection area spanning approximately 297 feet in length.

The plan specifies three equipment installation locations: an external speaker for the alarm system (marked with a red star), an internal visual warning sign (marked with a blue star), and CPU or other detection equipment (marked in purple/magenta). The inbound traffic flow is indicated with blue arrows, outbound traffic with green arrows, and the detection zone is positioned to intercept vehicles attempting to enter through the wrong direction. The 31-foot measurement at the top indicates the width of the gate structure, and the 68-foot measurement on the right side indicates the distance along the outbound traffic lane. This diagram serves as the technical specifications for implementing a vehicle detection and alarm warning system to prevent wrong-way traffic at the facility entrance.