A portable changeable message sign may be used to simulate an a rrow panel display. 652.2.4 Other Devices Vertical panel markers shall be orange a nd white striped, 8 inches wide by 24 inches high. On the Interstate System, verti cal panel markers shall be orange and white striped, 12 inches wide by 36 inches high. Cones shall be orange in color, at least 28 inches high, and re tro-reflectorized. Retro- reflection shall be provided by a white band of retro-reflectiv e sheeting conforming to inch wide white band at least 2 inches below the 6 inch band. Drums shall be of plastic or other yielding material, and shall be approximately 36 inches high and a minimum of 18 inches in diameter. There shal l be at least two retro- reflectorized orange and at least two retro-reflectorized white stripes at least 4 inches wide on each drum. Metal drums shall not be used. Warning lights and battery operated flashing and steady burn li ghts shall conform to the requirements Section 712.23 - Flashing Lights. Flaggers shall use a STOP / SLOW hand held paddle as the primar y and preferred hand signaling device. Flags shall only be limited to emergencies. STOP / SLOW paddles shall have high intensity prismatic retro r eflective sheeting, have an octagonal shape on a rigid handle and shall be at least 18 i nches wide with letters at least 6 inches high and shall be constructed from light semi-rigid ma terial. The STOP (R1-1) face shall have white letters and a white border on a red background . The SLOW (W20-8) face shall have black letters and a black border on an orange backgr ound. STOP / SLOW paddles shall also incorporate either white or red flashing lights on the STOP face and white or yellow flashing lights on the SLOW face of the paddle and always be in use. Paddles must conform to any of the following patterns: A. Two white or red lights (colors shall be all white or all re d), one centered vertically above and one centered vertically below the STOP legend; and/or two white or yellow lights (colors shall be all white or all yellow), onece ntered vertically above and one centered vertically below the SLOW legend;
on each side of the STOP legend; and/or two white or yellow lig hts (colors shall be all white or all yellow), one centered horizontally on each sid e of the SLOW legend;
light centered below the SLOW legend;
diameter along the outer edge of the paddle, arranged in an oct agonal pattern at the eight corners of the border of the STOP face; and/or a series o f eight or more small all white or all yellow lights no larger than 1/4 inch in diame ter along the outer edge of the paddle, arranged in a diamond pattern along the border o f the SLOW face; or
Flashing light patterns shall be compliant with Section 6E.03 H and Signaling Devices in the most current version of the Manual on Uniform Tr affic Control Devices. All flashing light patterns on the STOP / SLOW paddle shall be visible from a minimum distance of 1000 feet. Type I barricades shall be 2 feet minimum, 8 feet maximum in le ngth with an 8 inch wide rail mounted 3 feet minimum above the ground. Type II bar ricades shall be 2 feet in length with two 8 inch wide rails, and the top rail shall be mo unted 3 feet minimum above the roadway. Type III barricades shall be 8 feet in length wit h three 8 inch wide rails, and the top rail shall be mounted 5 feet minimum above the roadway. The cross members of all barricades shall be of ½ or ⅝ inch thick plywood or other light weight rigid material such as plastic, fiberglass or fiber wood as approved by the Resident. The predominant color for supports and other barricade components shall be white, except that unpainted galvanized metal or aluminum components may be used. 652.2.5 Portable Changeable Message Sign Trailer mounted Portable Changeable Message Signs (PCMS) must be of a type that has been submitted to AASHTO’s National Transportation Product Evaluation Program (NTPEP) for evaluatio n. The PCMS unit shall meet or exceed the current specifications of the Manual on Unif orm Traffic Control Devices (MUTCD), 6F.55. The front face of the sign shoul d be covered with a low-glare p rotective material. The color of the LED elements shall be amber on a black background. The PCMS should be visible from a distance of 0.5 mile day and night and have a mi nimum 15º viewing angle. Characters must be legible from a distance of at least 650 feet . The message panel should have adjustable display rates (minimum of 3 seconds per phase), so that the entire message can be read at least twice a t the posted speed, the off-peak 85th-percentile speed prior to work starting, or the anticipate d operating speed. Each message shall consist of either one or two phases. A phase shal l consist of up to eight characters per line. The unit must be capable of displaying at least three lines of text with eight characters per line. Each character shall be 18 inches hi gh. Each character module shall use at least a five wide and seven high pixel matrix. The text of the messages shall not scroll or travel horizontally or vertically across the face of the sign. Units shall automatically adjust their brightness under varying light conditions to maintain legibility.
The control system shall include a display screen upon which me ssages can be reviewed before being displayed on the message sign. The control system shall be capable of maintaining memory when power is unavailable. Message must be c hangeable with either a notebook computer or an on-board keypad. The controller shall h ave the capability to store a minimum of 200 user-defined and 200 pre-programmed messages. Co ntroller and battery compartments shall be enclosed in lockable, weather-tight boxes . PCMS units shall have the capability of being made programmable by means of wireless communications. PCMS units shall also be fully capable of havin g an on-board radar system installed if required for a particular application. PCMS’ primary power source shall be solar with a battery back-u p to provide continuous operation when failure of the primary power source o ccurs. Batteries must be capable of being charged from a 110 volt AC power source. The u nit must also be capable of being operated solely from a 110 volt AC power source and be equipped with a cable for this purpose. The PCMS shall be mounted on a trailer in such a way that the b ottom of the message sign panel shall be a minimum of 7 feet above the roadway in ur ban areas and 5 feet above the roadway in rural areas when it is in the operating mode. PC MS trailers should be of a heavy duty type with a 2 inch ball hitch and a minimum of four leveling jacks (at each corner). The sign shall be capable of being rotated 360° relati ve to the trailer. The face of the trailer shall be delineated on a permanent basis by affixing re tro-reflective material, known as conspicuity material, in a continuous line as seen by oncomi ng drivers.
CONSTRUCTION REQUIREMENTS
652.3.1 Responsibility of the Departmen t The Department will p rovide Project traffic requirements such as allowable lane or road closures, minimum t emporary lane widths, work zone speed limits, timing limitations, and allowable special detours and temporary structures. No revisions to these requirements will be permitted unless the Contractor can thoroughly demonstrate an overall benefit to the public and a C ontract Modification is approved. 652.3.2 Responsibility of the Contractor The Contractor shall provide continuous and effective traffic control and management for the Project that i s appropriate to the construction means, methods, and sequencing allowed by the Cont ract and selected by the Contractor. 652.3.3 Submittal of Traffic Control Plan The Contractor shall submit, at or before the Preconstruction Meeting, a Traffic Control Plan (TCP) that prov ides the following information to the Department:
any) of the Contractor's Traffic Control Supervisor (TCS). The TCS is the person with
overall responsibility for insuring the contractor follows the TCP. and who has received Work Zone Traffic Control Traini ng commensurate with the level of responsibility shown in the requirements of the Contract, and who is empowered to immed iately resolve any work zone traffic control deficiencies or issues. Provide documentation that the Traffic Control Supervisor has completed a Work Zone Traffic Control Training C ourse (AGC, ATSSA, or other industry-recognized training), and a Supervisory refreshe r training every 5 years thereafter. Submit training certificates or attendance roster that includes the course name, training entity, and date of training. Traffic Control Training Course curriculum must be based on the standards and guidelines of the MUTCD and must include, at a minimum, the fol lowing:
The Traffic Control Supervisor, or designee directly overseeing physical installation, adjustment, and dismantling of work zone traffic control, will ensure all personnel performing those activities are trained to execute the work in a safe and proper manner, in accordance with their level of decision-making and responsibili ty.
impacts. The Contractor shall conduct the Work such that traff ic delays do not exceed 10 minutes unless longer periods are authorized by the Department. The Contractor shall provide advance signing to warn mot orists of expected traffic b ackups or queues.
through the Project Limits, including transitions during the ch ange from one phase of construction to the next, as applicable.
businesses, parking lots, pedestrian ways, bike paths, trails, residences, garages, farms, and other access points, as applicable.
together with the number of flaggers which will be used for eac h type of operation that flagging is needed. If the Cont ractor is using a flagging Subc ontractor, then the name and address of the Subcontractor m ay be provided instead of a list of flaggers.
government officials (including the name and phone numbers of s uch officials) whenever significant traffic impacts are anticipated or occur and the pl an for removing all lane restrictions in case of emergency or significant traffic impact . For a related provision, see Section 105.2.3 - Project Specific Emergency Planning.
maintaining, signing, and removing the detour or detours, inclu ding all temporary bridges and accessory features and complete restoration of the impacted land.
close excessive lengths of tra ffic lane to avoid moving traffic control devices.
shall provide an adequate roadway surface at all times; taking into account traffic speed, volume, and duration.
end treatments, impact attenuators, and traffic signals) with t he TCP.
emergency nighttime lighting equipment and safety personnel ava ilable on-site or have the ability to have them on site within an hour of the time of need .
105 and/or 107
requirements, Contract provisions, the current edition of the M UTCD, and Department policy and procedures. The Department will review and provide comments to the Contractor within 14 days of recei pt of the TCP. No review or c omment by the Department, or any failure to review or comment, shall relieve the contract or of its responsibility to design and implement the plan in accordance with the Contract, or to shift any responsibility to the Department. If the TCP is determined by the Department to be operationally ineffective, the Contractor shall submit modifications of the T CP to the Department for review, and shall implement these changes at no additional cost to the Contract. Nothing in this Section shall negate the Contractor’s obligations set fort h in Section 110 - Indemnification, Bonding, and Insurance. The creation and modif ication of the TCP will be considered incidental to the related 652 items. 652.3.4 General Prior to starting any work on any part of the project adjacent to or being used by the traveling public, the Contractor shall instal l the appropriate traffic control devices in accordance with the plans, specifications and the la test edition of Manual of Uniform Traffic Control Devices , Part VI. The Contractor shall continuously maintain the traffic control devices in t heir proper position, and they shal l be kept clean, legible and in good repair throughout the duration of the work. If notified t hat the traffic control devices are not in place or not properly mai ntained, the Contractor may be ordered to immediately suspend work until all deficiencies are corrected.