Specifications include, but are not limited to: 1.0 CART: 1.1 Carts shall be equipped with one signal head containing three (3) 12” diameter LED signal lamps (Red, Amber & Green) mounted in a vertical position.; 1.2 Signal heads shall be mounted on a retractable vertical upright and equipped with a manual hand crank.; 1.3 Each cart shall be equipped with batteries and a slow 110-volt charger in a lockable weather-proof compartment.; 1.4 Batteries shall be capable of a minimum of five (5) days of continuous operation at 72° degrees without charging.; 1.5 Each cart shall be equipped with solid rubber tires and retractable handles to facilitate deployment, relocation, and removal. Each cart shall be painted highway safety orange.; 2.0 SIGNAL HEAD: 2.1 The signal head shall meet the physical display and operational requirements of conventional traffic signals as specified in part IV of the manual on uniform traffic control devices.; 2.2 Signal heads shall be cast aluminum and have three (3) 12 inch diameter LED indications, conforming to ITE specifications Vehicle Traffic Control Signal Heads and NEMA standards TS1 and TS2.; 2.3 Signal heads shall be equipped with visors which extend beyond the signal head a minimum of the 10 inches.; 2.4 Signal heads shall have the ability to accommodate back plates.; 2.5 Signal heads shall be mounted to a vertical upright at a minimum height of eight (8) feet measured from the bottom of the green indication to the road surface.; 3.0 OPERATIONAL REQUIREMENTS: 3.1 Each unit shall be equipped with a conflict monitoring system conforming to NEMA standards.; 3.2 Each unit shall have the capability of being operated in a fixed time, traffic actuated, or manual control mode.; 3.3 Fixed time mode operation option must include the ability to provide a minimum of five (5) automatic signal timing changes within a 24-hour period.; 3.4 The operating system shall have the ability to control a minimum of seven (7) traffic phases.; 3.5 Each unit shall require programmable green time from 1 second to 999 seconds and red times from 1 second to 999 seconds in one (1) second increments.
