880.02 Construction Signing and Traffic Control
878.05 Method of Measurement — Vacant
878.06 Basis of Payment
The Department will pay for each pay item at the contract unit price per the specified pay unit as follows: Pay Item: Pay Unit:
A.MODULAR GLARE SCREEN (PERMANENT) Each or Linear Foot [Meter]
B.MODULAR GLARE SCREEN (TEMPORARY) Sign Day
880.01 Description
This work consists of providing and erecting signs, lights, barricades, and other devices.
880.02 Materials
A.General Provide materials for construction signing and traffic control in accordance with NCHRP 350 report or MASH Test Level 3 (TL -3), with letter of acceptance/eligibility from the FHWA.
B.Construction Signing and Traffic Control Materials
1.Arrow Display Provide each arrow display with a circuitry control unit, a mounting frame, and a sign panel with yellow sealed beam lamps attached in accordance with MUTCD Section 6F-3. Provide non -reflective black finish for panel fac es exposed to oncoming traffic. Provide a control unit to display higher intensity during the day and lower intensity at night. Ensure lamps display the same light intensity for a given setting. The Department will only allow the substitution of larger p anels for smaller panels. Provide a mounting frame to support the sign panel so the bottom edge of the panel is at least 7 ft [2.1 m] above the roadway surface when displayed to oncoming traffic. Mount arrow displays so the panel rotates on a horizontal a xis to hide it from the view of oncoming traffic when not in use. Mount mobile arrow displays on pneumatic -tired vehicles. Provide a power source with a separate auxiliary power source that can be immediately available to operate flashing lights. Provide a self -contained battery or electric generator power source on mobile arrow displays. CONSTRUCTION SIGNING AND TRAFFIC CONTROL 880.02 Provide arrow displays with a solid -state electronic circuitry control unit with four modes that contain switching controls for operator selection in accordance with Tab le 880:1: Table 880:1 Arrow Display Controls Mode Display Pass Right Flashing arrow Pass Left Flashing arrow Pass either side The apex of the outermost chevrons point to the nearest panel edge Caution At least four lamps in a pattern not indicating a direction
2.Construction Signs and Barricades Provide metal, wood, or plastic supports and sign blanks. Provide two supporting legs for each sign 10 ft² [1 m²] or larger. Provide wide -angle flat -top retroreflective sheeting for signs and barricades i n accordance with Type IV-A sheeting, unless otherwise shown on the Plans. Construct sign messages and symbols in accordance with MUTCD and as shown on the Plans. Mark and immediately replace construction signs not in accordance with Subsection 719.04, “Retroreflective Sheeting.”
3.Construction Signs 32.3 ft² [3 m²] and Larger Provide aluminum or galvanized steel to construct signs. If ground mounting, provide and install breakaway signs in accordance with GMS -1, FGS -1, FGS -2, and SPA -1. The Resident Engineer will approve installation locations before construction begins. The Department will not require reinforcing steel in the sign footings. Place signs on existing overhead signs if shown on the Plans. Retroreflect orize signs as required by the Contract. Provide signs of the designs and colors shown on the Plans.
4.Vertical Panels Provide vertical panels in accordance with MUTCD Section 6F-5. Place Type IV-A reflectorized sheeting on both sides of each vertical panel.
5.Warning Lights Provide warning lights in accordance with MUTCD Section 6F-7OF.
6.Cones Provide cones in accordance with MUTCD Section 6F-7.
7.Surveillance of Traffic Control Provide an ATSSA or Department -certified observer to maintain traffic control devices in position for work zones at the construction site 24 hr a day, seven days a week when traffic is directed away from the normal traffic lanes or when directed by the Resident Engineer. Provide
880.02 Construction Signing and Traffic Control
the ob server with a cell phone. Certification must be issued by a National or State Traffic Engineering/Safety association and approved by the Department.
8.Traffic Surveillance, Police Make arrangements through the Oklahoma Highway Patrol, Chief’s office to provide one officially marked Oklahoma Highway Patrol car and one law enforcement officer capable of issuing traffic citations. Ensure the Oklahoma Highway Patrol insures, licenses, bonds, and approves the officer for this work. Ensure the duty hours of the officer and vehicle match the Contractor’s working hours.
9.Flagger If required by the Contract, provide two flaggers per sign day. Provide lighting to illuminate the flagger stations at night.
10.Plastic Drums Provide two-piece breakaway drums in accordance with the MUTCD. The drums must accommodate conventional barricade warning lights that are in accordance with the NCHRP 350 or MASH, Category I device requirements. These drums will be used as channelizing devices f or construction and maintenance operations. Provide plastic drums at least 36 in [900 mm] high and at least 18 in [450 mm] wide regardless of orientation. The plastic drum must be capable of withstanding 60 mph [100 km/h] winds, turbulence created by vehi cles, and repeated movements during construction and maintenance operations. Ensure the top portion of the unit deforms and breaks away from the base upon vehicular impact. Ensure the base remains in place, allowing the vehicle to pass over it. Ensure t he base, or combination of stacked bases, weighs at least 40 lb, and the outside edge does not exceed 4 in [100 mm]. Provide rubber base collars that are clean cut, the proper size, black in color, and not curved at the top edges. Ensure the maximum diam eter of the base does not exceed 36 in [900 mm]. Provide bright orange plastic drums that resist color fading. Ensure the plastic drum is crash worthy in accordance with the NCHRP 350 or MASH. Ensure sheeting surfaces provide maximum adhesion of reflecti ve sheeting to the drum body. Provide weather tight drums designed to accept horizontal, circumferential bands of reflectorized sheeting, 4 in to 6 in [100 mm to 150 mm] wide. Provide drums with a D -shaped configuration at the base attachment point to min imize rolling after impact. Provide drums with enclosed tops, and drains to prevent water accumulation. Ensure that stacking the drums will not damage the reflective surface. Ensure each drum allows the attachment of two Type A conventional barricade wa rning lights. Provide warning lights capable of remaining attached during repeated impacts at speeds of at least 55 mph [88 km/h] and in accordance with NCHRP 350 or MASH. Provide drums that have alternating fluorescent orange and white horizontal circumf erential stripes of retro -reflectorized sheeting. Ensure there is a minimum of two fluorescent orange and two white stripes, beginning with a fluorescent orange stripe at the top of the drum. If there are non-reflectorized spaces between the horizontal o range and white stripes, ensure they are no CONSTRUCTION SIGNING AND TRAFFIC CONTROL 880.02 more than 2 in [50 mm] wide. Ensure the non -reflectorized portions of the drum are orange. Provide reflective sheeting that meets the requirements of the latest ASTM D4956, and the Federal Highway Administratio n Luminance Factor for fluorescent orange, Type VI reboundable sheeting (see Table 880:2). Table 880:2 Luminance Factor, Y T Sheeting Type Min Max Fluorescence Luminance Factor Limit Y F Fluorescent Orange 25 None 15
11.Tube Channelizers Provide orange tube channelizers, at least 27 in [700 mm] high and at least 2 in [190 mm] wide when facing traffic. Ensure the channelizers do not damage vehicles upon impact. For nighttime use, equip each tube channelizer with two 3 in [75 mm] wide white bands w ith retroreflectivity at least that of Type IV sheeting. Place the white bands no greater than 2 in [50 mm] from the top of the tube and no greater than 6 in [150 mm] apart.
12.Cone Channelizers Provide orange cone channelizers, at least 42 in [1000 mm] high and at least 7.5 in [50 mm] wide at the bottom of the cone portion. Provide a base for each cone channelizer of a minimum 30 lbs. Each channelizer shall have alternating 6” stripes of white (2) and orange (2) Type IV retroreflective sheeting (4 tota l sheeting stripes) to be spaced 4” apart.
13.Sampling and Testing Submit to the Resident Engineer a Type D certification in accordance with Subsection 106.04, “Materials Certifications.”
14.Temporary Roadway Lighting Assembly Provide temporary roadway lighting assemblies of the type specified, meeting the material requirements of applicable subsections of these specifications. Include all of the following items, unless otherwise specified: 2/C or 3/C No. 4 AC SR electric conductor (aerial), between the lighting poles and to the temporary service pole. 1/C No. 12 electric conductor, to the luminaries. In-line fuse connector with a 15 amp. Fuse. (Optional) An existing or new permanently installed roadway pole wit h either one or two luminaires may be considered a temporary roadway lighting assembly for payment as outlined in
880.04 Construction Signing and Traffic Control
Provide the following specific items for the various assembly types: Assembly Type 40 40' (12.2 m) Class 6 wood pole with an 8' (2.4 m) galv. steel mast arm 250 watt high pressure sodium roadway luminaire rated at 27,000 lumen, Type M -S-III Assembly Type 55 55' (16.8 m) Class 4 wood pole with a 10' (3.0 m) galv. stee l mast arm. 400 watt high pressure sodium roadway luminaire rated at 50,000 lumen, Type M -S-III
15.Temporary Service Pole Assembly Provide temporary service pole assemblies meeting the material requirements of applicable subsections of these specificatio ns. Include all of the following items, unless otherwise specified: 35' (10.7 m) Class 6 wood pole 60 or 100 amp. , 2 -pole lighting controller 60 or 100 amp. disconnect switch Miscellaneous equipment including PE cell, conduit, electrical conductors, fuse s, connectors and meter base, if required
880.03 Equipment — Vacant
880.04 Construction Methods
Perform construction traffic control in accordance with MUTCD Chapter VI and as shown on the Plans, or as further modified by the Resident Engineer. Traffic con trol devices shall meet the requirements of the MUTCD as pertains to shape, size, color, mounting height, and placement. Place signs, lights, and barricades on portable or fixed supports as required by the Contract. Monitor and maintain the condition of de vices. Immediately replace damaged signs or devices as directed by the Resident Engineer. If directed by the Resident Engineer, clean the sign or device. Coordinate with Department personnel to conduct nighttime traffic control device reviews at the begi nning of the Project, in conjunction with major changes to traffic signing, and at monthly intervals. Record the date and result of the nighttime inspection in the contractor signing log. Immediately remove or cover unnecessary traffic control devices as approved by the Resident Engineer. Light the flagger stations at night and ensure the lighting does not impede the vision of passing drivers. The Resident Engineer will give written notice of unacceptable conditions to facilitate prompt maintenance and cha nges in construction traffic control devices. Correct the specified devices within 24 hr of notice. Continue providing construction traffic control and maintain the log of devices until completion and acceptance at no additional cost to the Department. CONSTRUCTION SIGNING AND TRAFFIC CONTROL 880.05 Install the temporary roadway lighting assembly and temporary service pole assembly at the direction of the Engineer, and in cooperation with the local utility company and the local governmental agency. Repair any damage to the temporary roadway lighting assembly and/or temporary service pole assembly inflicted during the installation, relocation, and/or removal of these items at no additional cost to the Department. Install Assembly Type 40 on two -lane and three -lane roadways. Install Assembly Type 50 on roadways with more than three lanes. The suggested maximum spacing between temporary lighting poles is 150' to 170' (45.7 m to 51.8 m) for Assembly Type 40, and 180' to 210' (54.9 m to 64 m) for Assembly Type 55. Connect the temporary lighting poles to e lectrical power at a temporary service pole using aerial conductors. Using portable median barrier, protect the temporary light poles and service pole assemblies rom the traffic flow in a manner approved by the Engineer. Operate temporary roadway lighting at 480 volts.
880.05 Method of Measuremen T
A.Sign Day Pay Item If Plans show itemized pay items for construction traffic control devices, the Resident Engineer will measure each device used for construction traffic control per calendar day. For non -work ing periods, the Resident Engineer will use the sign log from the previous and successive working days to measure payment for devices. The Resident Engineer will measure one calendar day for devices used at multiple locations in one day. Maintain a log of devices used for construction traffic control per calendar day. Update the log daily throughout the project to confirm the addition or deletion of individual devices. Submit the log to the Resident Engineer before each pay period. The Department will no t allow unnecessary devices to remain in place for more than 5 days unless covered as directed by the Resident Engineer. The Resident Engineer will not measure unnecessary devices left in place. After 5 calendar days, the Resident Engineer will deduct th e contract unit price of the relevant pay item every day the unnecessary device remains in place and uncovered. If an unnecessary device remains in place and uncovered for more than 30 calendar days, the device will become the property of the Department.
B.Lump Sum Pay Item Additional compensation for prolonged use of the traffic control devices will be considered for the following instances: A change order is approved that provides additional work and additional time, or A delay beyond the control of the Contractor occurs which renders the project unable to be completed within the contract time; such as a utility or Department caused delay. If additional and compensation is warranted, the Resident Engineer will calculate a daily rate by dividing the lump sum contract unit price for Construction Traffic Control by the number of calendar
880.06 Construction Signing and Traffic Control
days in the contract time. The Resident Engineer will calculate the additional compensation by multiplying the daily rate by the number of additional days. If the Contract or fails to make corrections to devices as directed by the Resident Engineer within 24 hr, the Resident Engineer will assess a daily charge equal to half of the daily rate calculated in the previous paragraph. The Resident Engineer may assess the daily ch arge for each additional 24 hr until the devices are corrected. The Department will deduct this amount, as a non -recoverable charge, from the next progress payment.
C.Luminaire Day Pay Item The installation and removal of the Temporary Roadway Lighting A ssembly will be measured by the unit, complete in place, for each calendar day the device is required and is in place in an acceptable condition and position to meet all of the above requirements. Measurement for payment will be by the Luminaire Day (LMDY ) beginning on the day that the temporary roadway lighting assembly is in place and operational. A Luminaire Day is defined as any 24 -hour day that the assembly is operational. Temporary or permanent lighting assemblies with two luminaires will be measure d as two luminaire days. Temporary Roadway Lighting Assembly will be measured for payment with a 30 -day minimum for each relocation. The cost bid for Temporary Roadway Lighting Assembly may also be used for compensation for temporary lighting utilizing e xisting and/or permanent pole installations during the interim time between the time they are installed and operational and before the final circuit is accepted and the permanent service pole is operational. Any existing lighting pole assembly that is bein g used for temporary lighting during construction will not be paid for until that assembly is connected to a circuit for which the Contractor is furnishing the electrical energy.
880.06 Basis of Payment
The Department will pay for each pay item at the cont ract unit price per the specified pay unit as follows: Pay Item: Pay Unit:
A.ARROW DISPLAY (TYPE) Sign Day
B.CONSTRUCTION SIGNS (SIZE) Sign Day
C.CONSTRUCTION BARRICADES Sign Day
D.VERTICAL PANELS Sign Day
E.WARNING LIGHTS (TYPE) Sign Day
F.DRUMS Sign Day
G.TUBE CHANNELIZERS Sign Day
H.CONES (SIZE) Sign Day
I.FLAGGER Sign Day CONSTRUCTION SIGNING AND TRAFFIC CONTROL 880.06 Pay Item: Pay Unit:
J.CONSTRUCTION TRAFFIC CONTROL Lump Sum
K.SURVEILLANCE OF TRAFFIC CONTROL Sign Day
L.TRAFFIC SURVEILLANCE, POLICE Hour
M.TEMPORARY ROADWAY LIGHTING ASSEMBLY Luminaire Day The Department will consider the cost of installing, maintaining and removing all construction traffic control to be included in the contract unit price for relevant traffic control pay item . Unless otherwise shown on the Plans or Special Provisions, construction traffic control devices remain the property of the Contractor upon project completion.
A.Sign Day Pay Item The Department will consider the cost of providing two flaggers and lighting the flagger stations at nigh t and any other incidental items to be included in the contract unit price for Flagger. If the Resident Engineer suspends contract time for public safety in accordance with Subsection 108.07, “Administration and Extensi on of Contract Time,” the Department will pay for construction traffic control during the period of suspension. The Department will not pay for devices on liquidated damage days.
B.Lump Sum Pay Item The Department will pay for Construction Traffic Control as a percentage equal to the project percent complete. The Department will pay for amounts of Construction Traffic Control remaining on the date of completion in the next estimate. The Department will pay for Surveillance of Traffic Control , Traffic Surv eillance, Police, and Temporary Roadway Lighting Assembly separate from the Lump Sum construction traffic control pay items. If the Resident Engineer requires additional signage for safety, the Department will pay in accordance with Subsection 109.04, "Differing Site Conditions, Changes, and Extra Work." The Department will not pay additional compensation for construction traffic control for time extensions due to unusually severe weather.
C.Luminaire Day Pay Item Payment will be considered full pay for this item of work. Include all costs for the Temporary Roadway Lighting Assembly in the unit price bid for this item of work, including all materials, hardware, installation, relocations, removal upon completion of the project, any temporary service pole assembly, costs of electrical energy to the service pole necessary to operate the completed temporary lighting system, and all maintenance or repairs required to keep the system in operation during construction. Do n ot include the cost for portable median barrier used to protect the temporary lighting assembly in this item of work.
882.02 Changeable Message Sign
SECTION 882 CHANGEABLE MESSAGE SIGN
882.01 Description
This work consists of providing, maintaining, and using a trailer -mounted changeable message sign or remote -controlled changeable message sign.
882.02 Materials
Provide an internally -illuminated variable -message sign including the following characteristics: A magnetically operated matrix, LED, fiber optic, or lamp matrix message board, A solar and battery power supply, Hardware for connection to a 110 V power source, An on -board computer, and A computer -operated interface. Mount on a towable, heavy duty trailer. Provide a sign capable of t hree lines of text or symbols, each with seven rows and 40 columns of LED pixel display elements. Provide solid state LEDs and LED energize/de -energize circuitry, directly embedded in the display element panel. Ensure each line consists of eight separate , interchangeable display element panels with seven rows and five columns of display elements. Provide display element panels with an evenly installed horizontal matrix, with 3 in [75mm] between individual characters. Ensure each display element panel me asures 18 in [457 mm] high by 13 in [330 mm] wide, with no separate driver boards required to drive the LEDs. Provide a separate wiring harness to power each LED pixel on the display element panels. Provide sign display elements consisting of wide -angle L EDs that allow 30° legibility of the sign message. Ensure LEDs rated for at least a 100,000 hr life. Ensure the display elements operate at temperatures from −20 °F to 140 °F [−29 °C to 60 °C]. Ensure clear sign legibility from 1,000 ft [305 m]. Provide an onboard computer to control the sign. Ensure the sign automatically changes to a pre-selected default message upon failure, and it remains on display until the problem is corrected. Equip the remote -controlled changeable message sign unit with a cellul ar telephone and a security system that prevents unauthorized sign access, but allows access through a password or code unique to that sign. If the password or code is not entered within 60 s of initial telephone contact, terminate the call. Control the remote -controlled changeable message sign with a touch tone modem decoder. Provide a sign capable of storing up to 199 preprogrammed messages, and displaying any of the messages with a call through the trailer -mounted terminal for the changeable message si gns and the remote -controlled changeable message signs. Ensure the sign retains the messages during power failure. Ensure sign operation if the sign keyboard controller is disconnected. Provide a solar recharged battery pack as the primary power supply.
Source: Oklahoma Standard Specifications for Highway Construction, 2019 Edition. Pages 910–917 of 935.