9−47923.05.3 Fluorescent Traffic Cones. The accepted quantity of "Fl uorescent Traffic Cones" will be paid for at the contract unit price per each such cone as listed in the Proposal. The price so-stated constitutes full and complete compensation for a ll labor, material, and equipment, including placing cones at their initial locations and for eventually removing said cones from their final locations, and all incidentals necessary to finish the work, complete and accepted by the Engineer. Payment for removing barricades and traffic cones from their initial locations and for hauling, maintaining, transporting, and relocating said barricades and traffic cones to storage or to subsequent intermediate locations at which they are to be used for traffic control is not included in this Section but is included under SECTION 937; MAINTENANCE AND MOVEMENT OF TRAFFIC PROTECTIVE DEVICES , of these Specifications.
924.01 DESCRIPTION . This work consists of providing, operating and maintaining a portable
trailer on which is mounted a flashing "arrow" unit at locations indicated on the Plans or as directed by the Engineer, all in accordance with these Specifications and MUTCD standards. 924.02 MATERIALS. 924.02.1 Trailer . The trailer shall be a portable, rubber-tired unit.
924.02.2 Flashing Arrow Unit . The flashing "arrow" unit consists of a black background panel
constructed of light weight aluminum. The panel shall be approximately 4 feet high and 8 feet wide. It shall be wired and have receptacles for at least 12 No. 4412A amber sealed beam lamps, or approved equal. Each such lamp shall have a ma ximum initial intensity of 6,000 candle power and a flash rate of approximately 30 flashes per minute. The unit shall be provided with a locking switch box and an automatic dimming device capable of reduc ing maximum lamp intensity by at least 50 percent during nighttime operation. The flashing arrow unit shall be capable of indicating a bar (warning mode), an arrow to the left, an arrow to the right, or an arrow in both directions simultaneously to approaching traffic. 924.02.3 Power Supply. The portable flashing arrow unit shall be powered by diesel fuel. The generator shall be equipped with battery powered backup. The portable flashing unit shall also be provided with a hardwire capability. 924.03 CONSTRUCTION METHODS. The advance warning arrow panel shall be available for use throughout the duration of the Contract. It shall be positioned and repositioned at the direction of the Engineer. The Contractor shall be required to perform all maintenance recommended by the manufacturer of the units, as required to keep the unit operating properly. Said maintenance shall include the periodic cleaning of the units. 9−48 The units shall be kept in good repair at all times. If there is a failure, malfunction, or damage to the unit for any reason, the Contractor will expedite the repair and furnish adequate flaggers or other approved means to provide a safe m eans for control or traffic until the units are put back into service. 924.04 METHOD OF MEASUREMENT. "Advance Warning Arrow Panels" will be measured by number of days the unit is actually employed in t he construction work in accordance with the Plans and/or as directed by the Engineer. 924.05 BASIS OF PAYMENT. The accepted quantity of "Advance Warning Arrow Panels" will be paid for at the contract unit price per day as listed in the Proposal. The price so-stated constitutes full and complete compensation for all labor, materials, and equipment including the unit itself, first placement thereof, temporary storage, repositioning at different locations, diesel fuel, electric power, batteries, maintenance, and all incidentals necessary to finish the work, complete and accepted by the Engineer. SECTION 925 PORTABLE CHANGEABLE MESSAGE SIGN
925.01 DESCRIPTION. This work consists of providing, operating and maintaining a portable
trailer on which is mounted a changeable message sign at locations indicated on the Plans or as directed by the Engineer, all in accordance with these Specifications and MUTCD standards. 925.02 MATERIALS. 925.02.1 Trailer. The trailer shall be a portable, rubber tired unit.
925.02.2 Message Sign. The sign shall consist of either a la mp matrix or a rectangular disk matrix
system capable of a flash and sequence rate of one to six seconds. The message displayed from the unit shall be visible from a distance of one-half mile and have an average legibility distance of 850 feet under conditions of normal sunlight.
a.The Lamp Matrix Sign. The sign shall consist of a three line, eight character/module matrix. Each character/module shall be a minimu m of 17 inches high and shall be configured in a 7 by 4 dot matrix. All characters/modules within a message line shall be equally spaced, both horizontally and vertically. Under a normal operation range of 9 volts to 20 volts, the clamp matrix bulbs shall have a projected design life of 10,000 hours. The bulb shall be a two-inch diameter, par-16, sealed beam, double contact bayonet base unit. All lamp matrix characters/modules shall hav e their own lamp driver circuit board mounted on and connected to the back side. The characters/modules shall be hinged to the bottom on the
Source: Rhode Island Standard Specifications (Bluebook), 2024 Edition. Pages 579–580 of 826.