703Temporary Traffic Control

Temporary Traffic Control

703.1DESCRIPTION

1 This section describes the requirements for furnishing, placing, maintaining, repairing, and removing temporary traffic control devices.

703.2MATERIALS

703.2.1 General

1 Use temporary traffic control devices that meet the testing requirements of the Manual for Assessing Safety Hardware (MASH16), test level 3 (TL-3). Temporary traffic control devices manufactured on or before December 31, 2019 and successfully tested to NCHRP-350 or MASH09, TL-3, may continue to be used throughout their normal service life or until December 31, 2022. Maintain and submit certification records in accordance with Subsection 703.4.2, Documentation.

2 Use temporary traffic control devices and flagger paddles fabricated with retroreflective sheeting in accordance with Subsection 816.4, Retroreflective Sheeting.

703.2.2 Drums, Cones, and Tubular Markers

1 Use drums, cones, 42-inch [1067 mm] cones, and tubular markers that are plastic and predominantly orange.

2 Use drums and 42-inch [1067 mm] cones that have alternating stripes, two orange and two white with orange on top, that are retroreflective and equal width.

703.2.3 Signs

1 Use the same sign sheeting material for each sign face on any sign installation. If hinged signs are used, ensure that the hinge does not block any part of the sign message. Use surfaced, four -sided (S4S), untreated timber posts for temporary timber sign post installations. Other sign posts that meet the testing requirements of MASH16, TL-3 may be used as approved by the engineer.

703.2.4 Sign Panels

1 Construct sign panels of either:

plywood sheets meeting the requirements of the Product Standards PS1-95 for

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construction and industrial plywood published by the U.S. Department of Commerce.

the requirements of Subsection 816.1, Sheet Aluminum for Sign Panels.

mm] or smaller.

703.2.4.1 Backing Angles

1 Use sign panels backed with 2 in x 2 in x 3/16 in [50 mm x 50 mm x 5 mm] galvanized steel or aluminum backing angles and mounted to the post with 2 in x 2 in x 3/16 in [50 mm x 50 mm x 5 mm] galvanized steel clip or aluminum angles except that sign panels 48 in x 60 in [1220 mm x 150 mm] or smaller may be backed as follows:

or 2 in X 4 in [50 mm x 100 mm] dimensional lumber.

1 Use galvanized bolts, locknuts, and washers that meet the requirements of Subsection 815.6, Bolts and Fasteners, to attach the sign panels to the backing members. Use locknuts that have a fiber or nylon insert. Use elevator bolts with heads flush with the surface of the sign panel.

703.2.4.2 Sign Supports

Use sign supports that have enough vertical rigidity to support the sign in an upright position and provide continuous legibility of the sign legend in gusty conditions (wind or vehicle gusts). Remove temporary sign supports that fail to provide adequate visibility of the sign.

703.2.5 Striping Paint and Glass Beads

1 Use commercially manufactured yellow or white highway striping paint for temporary pavement markings, and apply it without dilution. Make the painted pavement markings reflective by dropping or spraying glass beads onto the wet paint. Use retroreflective beads that meet the requirements of AASHTO M 247, Type I.

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703.2.6 Temporary Pavement Striping Tape

1 Use temporary retroreflective pavement striping tape that is pressure-sensitive and manufactured for use as pavement striping.

703.2.7 Temporary Raised Pavement Markers

1 Use temporary raised pavement markers that are the same color on the face and body as the markings for which they are substituted, have a dimension of at least 2 in × 4 in [50 mm × 100 mm], are constructed of a high impact-resistant plastic material, and have at least 1.0 in² [645 mm²] of retroreflective area in each face.

2 Use markers that are designed for adhesion to the road by either hot melt bitumen, epoxy, or butyl pads. Use an adhesion method that allows for easy removal of markers without pavement damage.

703.2.8 Flags

1 Use flags 24 in [600 mm] square, except on signs use flags 18 in [450 mm] square or larger. Use flags with weighted corners or reinforcing to keep the flag extended away from the post. Do not use mesh flags.

703.2.9 Portable Plastic Water Filled Barrier

1 Use portable, longitudinal, crashworthy plastic barrier that meets the following requirements:

December 31, 2019 and successfully tested to NCHRP-350 or MASH09, TL- 3, may may continue to be used throughout their normal service life or until December 31, 2022.

(length × width × height).

703.2.10 Temporary Concrete Barrier

1 Provide temporary concrete barrier and terminals meeting the requirements of the contract. If the barrier is to remain the property of the contractor and does not have to connect to state furnished barrier, it is acceptable to furnish another temporary concrete barrier type meeting the requirements of MASH 16, TL -3 with a maximum dynamic deflection of 6 ft [1.8 m]. Temporary concrete barrier manufactured on or before December 31, 2019, successfully tested toNCHRP -350 or MASH09 TL- 3, and meeting the maximum dynamic deflection distance may continue to be used throughout their

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normal service life or until December 31, 2030. Furnish FHWA letter of acceptance for the barrier type and connection detail and evidence of maximum dynamic deflection to the engineer.

2 Use bidirectional delineators that match the color of the adjacent edgeline pavement stripe. Attach delineators to the barrier and terminal in accordance with the manufacturer’s recommendations.

703.3EQUIPMENT

703.3.1 Sequential Chevron

1 Use portable, wheel-mounted units that meet the requirements of the MUTCD and provide or are capable of all the following:

percent or other levels as needed.

2 Replace units that are not reliable or do not provide the necessary constant light source.

3 Maintain sequential chevrons in working order at all times. Chevrons may be powered by a generator on site, utility power, or solar power. Ensure that the power source is able to maintain constant operation. Generator power will be allowed only as approved by the engineer.

703.4CONSTRUCTION

703.4.1 General

1 Furnish, install, locate, maintain, and remove construction traffic control devices.

2 If changes to the traffic control plan are proposed, prepare a revised traffic control plan, and submit it to the engineer at the preconstruction conference, or as requested by the engineer, in accordance with Subsection 108.3.3, Preconstruction Conference. Do not change traffic operations from the details and standard plans included in the contract, unless an alternate plan is submitted to and approved in writing by the engineer. Ensure the alternate plan is the same quality and detail as the one shown in the contract. Modify the plan as the situation warrants, and submit the revised plan to the engineer for approval.

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3 If traffic or workers may be affected, do not begin work until the necessary construction traffic control devices are in place and approved by the engineer.

4 When pl acing, maintaining, and removing traffic control devices, provide the traffic control necessary for the safety of the public and the workers.

5 Schedule work to minimize the number and duration of required traffic control set-ups. Whenever possible, sequence work operations so that traffic control can be removed within one half of an hour before sunset to allow full use of the roadway.

6 Construction traffic control device spacing is approximate; adjust it to fit field conditions. To provide maximum visibility of warning devices to oncoming motorists, consider roadway conditions, obstacles, geometrics, and permanent signing when placing construction signs . Changes in location and spacing are subject to approval by the engineer.

7 Check construction sites periodically, day and night, to ensure adequate traffic control is in place.

8 Completely cover or remove existing traffic control devices conflicting with construction traffic control, as approved by the engineer, and return them to their previous locations, as necessar y, at the completion of the work. Ensure the method of cover does not damage or puncture the existing sign. Remove or completely cover construction traffic control devices during seasonal suspensions and when not in use or needed. 9 When anchoring traffic control devices, sand bags or an approved alternate may be used for ballasting, not exceeding 12 in [300 mm] in height above ground level. Do not ballast devices by heavy objects such as rocks, chunks of concrete, or plant mix.

10Roll-up signs cannot twist in the wind or be affected by any conditions that distort the sign message.

11 When providing traffic control for operations not shown in the contract use the current edition of the Traffic Control for Roadway Work Operations minimum traffic control guidelines as approved by the engineer.

12 Mow or trim vegetation to insure that the complete visibility of signs, barricades, and other warning devices is maintained at all times. Maintain vegetation to a height less than 12 in [300 mm] around all devices.

703.

4.2Documentation

1 Maintain certification records that each temporary traffic control device meets the testing requirements specified. Furnish appropriate documentation to the engineer.

2 When temporary traffic control is paid by traffic control device (TCD) units, or flagging is paid by the hour, and unless agreed otherwise, provide a daily record of the traffic control

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device units and flagging hours used on the project for that day to the engineer. Include all of the information required on the “Daily Traffic Control Device Record” (Form E-101) in the daily record. If Form E-101 is not used, use a form with consistent layouts for every daily traffic control record submitted on the project. Discuss and agree on the submittal process for the daily traffic control record with the engineer at the preconstruction conference.

703.4.3 Traffic Control Maintenance

1 Submit the name(s) of a designated traffic control maintainer(s) and the telephone number where the contractor’s superintendent and maintaining personnel can be contacted, at any time, to the engineer before installing any traffic control. Provide cellular or other portable phone service when needed to ensure the availability of the superintendent and maintaining personnel.

2 Provide a maintainer if traffic is being diverted or protected by channelizing devices, barricades, portable signs, flagging, or pilot car operations.

3 Ensure the traffic control maintainer(s) performs the necessary traffic control device maintenance by keeping the devices in the proper location and in good condition. Provide the number of traffic control maintainers necessary to meet the specified requirements.

4 Ensure traffic control devices are maintained while in use on the roadway.

703.4.4 Channelizing Devices

1 Mark initial channelization device locations with paint so that replacement devices can be installed in the proper locations without measuring again.

2 In rural areas, 42-inch [1067 mm] cones, or 42-inch [1067 mm] tubular markers may be used instead of drums as channelizing devices during the daytime only.

3 The name and phone number of the channelizing device owner may be shown on the non-reflective surface at the bottom of the device or on the back of signs in letters and numbers that are a non-reflective color and not over 2 in [50 mm] in height.

703.

4.5Signs

703.4.5.1 General

1 “Road Work Next ___Miles” and “End Road Work” signs are not required for projects less than 2 mi [3 km] in length or less than 28 calendar day in anticipated duration.

2 Use “Road Work Ahead” warning signs on major approach ramps or roads in close proximity to construction areas.

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3 Ensure the backs of signs are not distractive to motorists.

4 Ensure backing angle materials are covered by sign sheeting.

5 If the duration of a sign installation is less than 14 calendar days, the sign mounting may be portable. If the duration of a sign installation is 14 calendar days or more, use a fixed sign mounting.

6 Use sign posts that do not extend above the sign and are installed plumb. Determine sign post lengths. Use break away holes for timber posts as specified, and do not allow any additional or plugged break away holes within the visible post section.

7 Request detail layouts of temporary traffic control sign lettering from the engineer.

8 Flags may be added to construction signs for better daytime visibility. Use flags on the “Flagger Ahead” and the “Be Prepared to Stop” signs.

9 If sign panels installed without backing will be in use throughout the suspension, install backing angles in accordance with Subsection 703.2.4.1, Backing Angles, before the suspension of work.

703.4.5.2 Special Signs

1 Furnish special signs that are unique to the project, i.e., signs not specified or included in part VI of the MUTCD, and signs containing a message which is unique to the project. Furnish posts, hardware, and equipment for fixed and portable installations: determined post length; and erect special signs. The engineer will stake locations for special signs.

703.4.5.3 Portable Signs and Mounts

1 When portable traffic control devices are not in use, remove them as far from traffic as possible and, at a minimum, outside of the clear zone specified, as approved by the engineer. Position them so as not to confuse approaching motorists.

703.

4.6Flagging

1 Use flaggers that have completed and passed a flagger training program approved by the State Construction Office before flagging. A three-day grace period will be allowed to meet this requirement in an unplanned emergency situation. Ensure that flaggers are tested every three years. Ensure flaggers have a current certification card in their possession when they are on the project or the supervisor has a list on hand of all certified flaggers.

2 Ensure that flaggers wear a strong yellow-green vest or an orange and strong yellow- green combination vest with reflectorization on the front, back, and sides and a strong yellow-green hard hat (full hard hat covers are acceptable), and they have a paddle and flag (optional) in their possession at all times. The color of strong yellow-green for vests

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and hard hats is for flagger use only. Supply and maintain the vest, hard hat, paddle, and flag in a “like new condition.” Do not place company name or logo on the flagger vest.

3 Ensure that flaggers have positive communication between flagging stations appropriate to the various types of operations. This communication may include but is not limited to the following:

4 Use flagger radios for communication between flagging stations only. Use radios that are good quality and reliable so that communications are continuous for various types of operations (including no sight and long distance situations). Do not use radios in electrically sensitive areas involving blasting or instances where the radio transmissions interfere with other established communication mediums.

5 For nighttime flagging, provide illumination for flagger stations that meets the following:

roadway;

10 feet from the edge of travel lane, aimed downward at the flagger and no greater than 30 degrees from straight down;

4000k. Other types of lamps will need to be pre-approved by the engineer;

higher lumens in urban areas to make the flagger standout when illuminance from background lighting is extensive.

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703.4.7 No Passing Zones

1 Use “No Passing Zone” signs to delineate no passing zones. In addition to the “No Passing Zone” signs, mark the no passing zones in accordance with Subsection 703.4.8, Temporary Pavement Markings. For the final surface treatment, place raised pavement markers or motorist guidance markers as specified.

2 Place “No-Passing Zone” signs before removing the existing center line striping.

3 Place temporary signing, striping, or barrier markers for no-passing zones at the same location as the existing permanent no-passing zones. The department will determine temporary no-passing zones in extenuating circumstances.

703.4.8 Temporary Pavement Markings

703.4.8.1 General

1 Use retroreflective temporary pavement markings that are paint, tape, raised pavement markers, or motorist guidance markers, either white or yellow , as specified. Do not use motorist guidance markers when interstate or divided highway traffic is placed two-lane, two-way.

2 Use paint with beads for temporary pavement markings on all pavement lifts, except the final surface treatment, plant mix wearing course, chip seal, seal coat, or concrete pavement. Final surface treatment is defined as the existing surfacing on interstate or divided highway lanes that is designated to remain in place over the winter or the surface after the final surface designated in the contract has been applied. Prior to placement of plant mix wearing course, ensure all paint used as temporary pavement markings is completely removed by grinding, and the roadway is clean and dust -free along with all resulting sediment.

3 Use yellow temporary centerline markings on two-lane, two-way highways.

4 Use white temporary lane line markings and white or yellow edge line markings on single direction, multi-lane highways.

5 When interstate (divided highway) traffic is placed two-lane, two-way, use white edge lines and yellow pavement markings dividing opposing traffic.

6 Ensure that the application surfaces for temporary pavement markings are free of foreign matter, which would interfere with adhesion. Apply temporary pavement markings in accordance with the manufacturer’s recommendations.

7 If paint with beads cannot be applied at the end of a day’s operation, place temporary pavement markings for overnight delineation as shown in the Standard Plans. Ensure that paint and beads are placed within 24 hours of a day’s operation. Place the markings

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in line with existing centerline or lane line markings at the beginning or end of the paving section. Taper the markings at the beginning or end of the paving section to line up with existing centerline or lane line markings.

8 Motorist guidance markers or temporary raised pavement markers may be approved for final lifts of plant mix pavement, chip seals, seal coats, and concrete pavement surfaces . Place temporary motorist guidance markers (tabs) in line with existing centerline or lane line markings.

9 Maintain the temporary pavement markings in their proper location and in a clean, undamaged, effective condition while in use.

10 Collect and properly dispose of removed temporary pavement markings and their protective coverings.

11 When pavement markings are required but cannot be applied because of the surface type, install channelizing devices for the following:

required by the engineer.

703.4.8.2 Temporary Pavement Striping Tape

1 Temporary pavement striping tape may be used in the following circumstances:

emergency situations only. If a removable type is used, remove it before placing the next lift of plant mix pavement.

striping tape. After the permanent striping operations, remove temporary pavement striping tape without damaging the pavement surface.

703.4.8.3 Conflicting Pavement Markings

1 Remove or cover conflicting pavement markings as approved by the engineer for work zone traffic control anticipated to be in place longer than three calendar days. Remove the markings without damaging the pavement surface, or cover the markings with removable, nonreflective, preformed tape in accordance with the MUTCD and approved by the engineer. If existing striping is removed, temporary striping may be used for increased motorist guidance. Use temporary striping that consists of paint, removable tape, temporary motorist guidance markers, or raised pavement markers.

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703.4.9 Paint

1 Apply paint at the rate of 100 ft²/gal [2.46 m²/L], which is a wet-paint thickness of 16 mil [405 µm]. Apply beads at the rate of 8 lb/gal [0.97 kg/L] of paint.

703.4.10 Sequential Chevrons

1 Place the units at specified locations or as directed by the engineer, and keep them on the project for as long as needed. Replace units that are not reliable, do not have automatic dimmers, or do not provide the necessary constant light source within the times indicated in Subsection 703.5.4, Liquidated Damages.

703.4.11 Permanent Striping

1 Permanent striping will be placed by the department.

2 Striping will be placed by department personnel for projects that are suspended in accordance with Subsection 108.5, Suspension of Work.

703.4.12 Portable Plastic Water Filled Barrier

1 Install as specified. Use an environmentally safe anti-freeze when freezing conditions are anticipated or encountered.

703.4.13 Temporary Concrete Barrier

703.4.13.1 General

1 Use only one type of barrier and only one type of barrier connection, as approved by the engineer, on the project. Use barrier that is in good condition, as determined by the engineer.

2 Place barrier in smooth lines with connecting anchor pins fully inserted and pulling against the connecting pins to establish a tight connection.

3 Repair or replace barrier that is damaged, as approved by the engineer , at no additional cost to the department.

703. 4.13.2 Barrier to Become Property of the Department

1 Provide barrier that meets all the following requirements:

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2.1Lifting hook

2.2Lifting holes

2.3Fork lift slots

3.1Barrier. On both sides and the top of the sections.

3.2End Terminals. Two on top and two on each side.

703.4.13.3 Barrier to Become Property of the Contractor

1 Provide barrier that meets all the following requirements:

Barrier. At a minimum, delineators on top and the side exposed to traffic.

703.4.14 Traffic Control Supervisor

1 Ensure the traffic control supervisor understands the department requirements, items in the contract, the contractor’s proposed operations, and Part VI of the MUTCD and holds a current certification as a WYDOT Traffic Control Supervisor.

2 Furnish proof of certification to the engineer at the preconstruction conference or before starting work, whichever occurs first.

3 Duties include the following:

before installation.

installation.

control devices, monthly, and after each change in the traffic control setup. Moves of the same traffic control setup do not require review by the traffic control

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supervisor. Within one working day of the review, provide the engineer written documentation of the time and date of review, condition of traffic control devices and layout, and a list of modifications required or performed.

703.4.1, General.

4 Be on site for:

and returning traffic on interstate projects.

of traffic control devices on projects that do not require traffic to cross over.

703.5MEASUREMENT and PAYMENT

703.5.1 General

1 When temporary traffic control is paid by traffic control device (TCD) units, or flagging is paid by the hour, the engineer will verify the quantities on the daily traffic control device record submitted by the contractor . Correct the record if requested and resubmit. T his record is to be used as the basis for measurement and payment for TCD units and flagging hours. Payment will not be made for quantities documented on a record when the corrected form is not received by the engineer within two working days after the mutually agreed to re-submission date.

2 The engineer will measure:

required by the engineer beyond that specified in the contract will be measured and paid for per hour, to the nearest quarter hour. Payment for the accepted quantities of additional flagging will be an adjustment to the contract lump sum bid price for temporary traffic control and will be made at the predetermined hourly wage rate, or quarter-hour fraction thereof, specified in the contract, plus 81 percent of that rate.

A dditional temporary traffic control devices required by the engineer beyond those specified in the contract and replacements for Category I and Category II temporary

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traffic control devices destroyed by traffic will be measured and paid for per each traffic control device (TCD) unit. Payment for Category II devices destroyed by traffic will be limited to the number of devices exceeding four in a single incident of damage. The number of TCD units for payment will be determined by multiplying the accepted quantities of each of the various devices by the TCD unit value specified for the device in the TCD Unit Schedule. Payment will be an adjustment to the contract lump sum bid price for temporary traffic control and will be made at a price of $2.00 per TCD unit.

specified in the T raffic Control Device Unit Schedule included in the contract. The number of TCD units will be determined by multiplying the number of each of the various devices by the TCD unit value specified for the device in the Traffic Control Device Unit Schedule.

roadway that are relocated laterally only once at each location but will measure for payment at subsequent locations. The engineer will measure in accordance with the following guidelines:

4.

multilane and urban roadways. Moves across centerline and lane lines to change lanes of closure will not be measured for payment, except the taper will be measured for payment as a new setup if the existing taper is in place for more than seven calendar days.

Moves from one lane to another on the interstate or similar median

divided multilane highways. Moves to the opposite directional lane, i.e., eastbound lane to westbound lane, will be measured for payment as a new setup.

4.3Tapers. If it is required that the taper be moved longitudinally, the new taper

will be measured for payment.

4.4Special r equirements. Labor to make minor moves to comply with

department requirements or special situations, such as oversize loads, etc., will be measured for payment as Force Account Work, in accordance with Subsection 109.4, Extra and Force Account Work, when the work involves more than one hour per a five-working day week.

individual stripes or segments placed.

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Schedule, other than special signs which are unique to the project, by the rate for the sign with the area in square feet [square meters] that most closely approximates the area of the sign being installed.

the signal is used in accordance with Standard Plan 703-2C.

once daily without regard to the number of relocations. The number measured for payment will not exceed the maximum number in use at any one time during a day.

installation.

Unit Schedule but are not included in the contract as pay items, and the engineer specifies or authorizes the use of temporary traffic control devices in those categories, TCD units for each device will be paid at the unit price of $2.00 per TCD unit.

engineer will measure the length of one section of barrier and multiply that length by the number of sections to determine the length for payment . Plastic Water Barrier and Temporary Concrete Barrier placed parallel to the centerline of the roadway that is relocated laterally for construction phasing will be measured for payment. Lateral repositioning of the barrier for the contractor’s convenience will not be measured and paid for directly.

3 Relocation of portable traffic control devices within a 36 ft [11 m] radius or less will not be measured for payment. This applies to those devices that are temporarily moved from the edges of the traveled ways to allow for normal operation of the roadway.

4 If portable signs are mounted on WC-4 barricades, the engineer will measure and pay for the portable sign installation only.

5 If the engineer requests a WC-4 barricade with arrow or other specified signs attached to be placed at a particular location, measurement and payment will be made for each installation and for each subsequent relocation request.

6 The engineer will measure and pay to reinstall traffic control devices removed for seasonal suspensions.

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7 The department will pay as follows:

Pay Item

Pay Unit Measure to the Nearest Pay to the Nearest Category ____TCD Units EA [Ea] EA [Ea] EA [Ea] Flagging HR [h] 0.25 h 0.25 HR [0.25 h] Plastic Water Barrier FT [m] 0.1 ft [0.05 m] FT [m] Sequential Chevron (1) EA, LS [Ea, LS] EA, LS [Ea, LS] EA, LS [Ea, LS] Temporary Concrete Barrier FT [m] 0.1 ft [0.05 m] FT [m] Temporary Concrete Terminal EA [Ea] EA [Ea] EA [Ea] Temporary Traffic Control

LS LS LS

percent of the lump sum item will be paid. Thereafter, the percentage paid will equal the percentage of the work complete up to and including 90 percent. The remaining10 percent will be paid when the sequential chevrons are no longer required for guidance and protection. If it can be demonstrated to the satisfaction of the engineer that the pay mechanism is not an accurate pay out for the work performed, the percentages may be changed.

703.5.2 Referenced Sections for Direct Payment

1 When specified, the engineer will measure and pay for:

Force Account Work in accordance with Subsection 109.4, Extra and Force Account Work.

Force Account W ork in accordance with Subsection 109.4, Extra and Force Account Work.

703.5.3 Damaged Devices

1 Replace devices that are destroyed or deemed irreparable at no additional cost to the department except in the following instances:

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Category I Devices. Category I devices destroyed by traffic will be measured for payment once as an additional installation, when replaced.

payment once as an additional installation, when damage in a single incident exceeds four devices.

703.5.4 Liquidated Damages

1 The engineer will assess liquidated damages as follows:

hour, or partial hour, if damaged or deficient devices are not properly maintained within 30 minutes of notification or attempted notification.

per hour, or partial hour, if damaged or deficient devices are not properly maintained one hour after notification or attempted notification.

damages in the amount of $250 per hour for each hour or partial hour after the 24 hour period.

2 If more than 25 percent of the number of one type of device in use on the roadway is damaged in a single incident of damage, the assessment of liquidated damages will be waived for a period not to exceed eight hours after the notification as specified in Subsection 703.4.3, Traffic Control Maintenance, provided suitable arrangements are made with the engineer for interim traffic control measures.

3 The engineer will assess liquidated damages in the amount of $250 per working day for each and every working day that the traffic control supervisor reports are received after the required time.

M aterials

Materials SECTION 800