Article 1 — Description
Furnish, operate, and maintain trailer -mounted portable changeable message sign (PCMS) units.
Article 2 — Materials
Furnish new or used material in accordance with this Item and as shown on the plans. Provide a self - contained PCMS unit with the following: sign controller, changeable message sign, trailer, and power source. Paint the exterior surfaces of the power supply housing, supports, trailer, and sign with Federal Orange No. 22246 or Federal Yellow No. 13538 of Federal Standard 595C, except paint the sign face assembly flat black.
2.1 Sign Controller . Provide the following.
A controller with permanent storage of at least 75 pre- programmed messages An external input device for random programming and storage of at least 75 additional messages A controller capable of displaying up to three messages sequentially A controller with adjustable display rates Enclose sign controller equipment in a lockable enclosure.
2.2 Changeable Message Sign . Provide the following.
A sign capable of being elevated to at least 7 ft. above the roadway surface from the bottom of the sign A sign capable of being rotated 360° and secured against movement in any position A sign with three separate lines of text and eight characters per line minimum A minimum 18- in. character height A 5 × 7- character pixel matrix A message legibility distance of 600 ft. for nighttime conditions and 800 ft. for normal daylight conditions Capability for manual and automatic dimming light sources The following are descriptions for three screen types of PCMS. Character Modular Matrix. This screen type comprises of character blocks. Continuous Line Matrix . This screen type uses proportionally spaced fonts for each line of text. Full Matrix . This screen type uses proportionally spaced fonts, varies the height of characters, and displays simple graphics on the entire sign.
2.3 Trailer . Provide a two- wheel trailer with square top fenders, four leveling jacks, and trailer lights. Do not
exceed an overall trailer width of 96 in. Shock mount the electronics and sign assembly.
2.4 Power Source . Provide a diesel generator, solar powered power source, or both. Provide a backup power
source as necessary. 775 2.5. Cellular Modem . When shown on the plans, provide a cellular modem connection to communicate with the PCMS unit remotely.
Article 3 — Construction
Place or relocate PCMS units as shown on the plans or as directed. The plans will show the number of PCMS units needed, for how many days, and for which construction phases. Maintain the PCMS units in good working condition. Repair damaged or malfunctioning PCMS units as soon as possible. PCMS units will remain the property of the Contractor.
Article 4 — Measurement
This Item will be measured by each PCMS or by the day used. All PCMS units must be set up on a work area and operational before a calendar day can be considered measurable. When measurement by the day is specified, a day will be measured for each PCMS set up and operational on the worksite.
Article 5 — Payment
The work performed and materials furnished in accordance with this Item and measured as provided under “Measurement” will be paid for at the unit price bid for “Portable Changeable Message Sign.” This price is full compensation for PCMS units; setup; relocating; removing; replacement parts; batteries (when required); fuel, oil, and oil filters (when required); cellular telephone charge (when required); software; and equipment, materials, tools, labor, and incidentals. Reimbursement for the repair of damaged devic es will be in accordance with Section 7.17.1., “Reimbursable Repair.”