740.02 Materials.
ITEM 734- X. REMOVAL OF ITS INFRASTRUCTURE, measured as noted above, will be paid for at the contract bid price, which s hall be full compensation for removal of ITS equipment, as indicated on the Plans and this Specification, complete and accepted by the Engineer, and shall also include removal of the following: ITS poles and foundations; ITS cabinets (includes all equipme nt and materials contained within cabinet along with mounting hardware; e.g., network switch, fiber distribution unit, vehicle detection components, and other as noted on plans); ITS cabinet foundation and concrete pads; ITS equipment (e.g., camera, vehicl e detection equipment, etc.) along with mounting hardware; or other materials called on the Plans; and, include all materials, backfill and seeding, labor, equipment, tools, transportation, and incidentals necessary to complete this item of work. ITEM 734- X shall be paid for in accordance with Section 109 as approved by the Engineer.
b.Payment will be made under Item No.: 734-U Wood Pole – per each 734-W Relocation of ITS Infrastructure ( 1 ) – per lump sum 734-X Removal of Fiber Optic Cable ( 2 ) – per lump sum 734-X Removal of ITS Infrastructure ( 1 ) – per lump sum
1.Specify Site Identifier or Site Number.
2.Specify Route [US Route, State Route or Street Name] or Name of Fiber Optic Cable Segment. TRAFFIC CONTROL DEVICES FOR CONSTRUCTION WORK ZONES
740.01 Description.
This Section shall cover the work of furnishing, erecting, lighting as directed, handling and maintaining all construction signs (warning, regulatory and guide ), barricades and other traffic control devices installed at locations specified by plan details, directed or approved by the Engineer for the purpose of handling traffic safely through construction work zones. The traffic control devices covered by this Section shall meet the requirements specified in the MUTCD and as detailed on the plans. In case of conflict or discrepancy, the plans shall govern over the MUTCD. This Section shall also cover the work of furnishing and operating pilot cars and furnishing flaggers to control traffic at such locations and for such periods as are necessary to handle traffic safely through construction work zones.
740.02 Materials.
a.Approval of Devices . All signs, barricades, markers, lights and other devices shall be approved for use in highway construction under the provisions of Section 32 -5A-36 of the Alabama Code prior to their installation. The Department has established List IV -3, Work Zone Traffic Control Devices. Devices shown on this list and devices shown on the plans will be the only devices accepted for use. The list is in the Department's manual, "MATERIAL, SOURCES AND DEVICES WITH SPECIAL ACCEPTANCE REQUIREMENTS." Information concerning this list is given in Subarticle 106.01(f) and ALDOT -355. Portable ru mble strips shall be selected from the Department’s List IV -4, Miscellaneous Traffic Control Devices. The list is in the Department's manual, "MATERIAL, SOURCES AND DEVICES WITH SPECIAL ACCEPTANCE REQUIREMENTS."
b.Crashworthiness of Devices . The Contract or shall be responsible for insuring that all devices that are used for work zone traffic control meet "crashworthy" requirements given in the National Cooperative Highway research Program (NCHRP) Report 350 for the appropriate category of device.
740.02 Materials.
c.Categories of Devices .
1.Category 1 Devices . Category 1 Work Zone Devices are small, lightweight devices (including cones, plastic drums, flexible delineators, portable rumble strips, etc.) that are known to be crashworthy either by crash testing or by years of demonstrable safe performance.
2.Category 2 Devices . Category 2 Work Zone Devices are small, lightweight devices (including barricades, sign supports, etc.) that will not produce significant velocity change when struck but may otherwise be potentially hazardous. All Category 2 devices manufactured or purchased on or after October 1, 2000 shall be crashworthy. All Category 2 devices manufactured or purchased before October 1, 2000 shall not be used after October 1, 2004.
3.Category 3 Devices . Category 3 Work Zone Devices are truck mounted impact attenuators, work zone impact attenuators, and portable concrete barriers. All impact attenuators shall be crashworthy. Portable concrete barriers that were fabricated in accordance with the details shown on Sheet 1 of ALDOT Special Drawing PNJB -629 and have "ALDOT 350- TL" cast into the top of the rails are crashworthy and are acceptable for installation. Other types of portable concrete barrier rails may be used with the written approval of the Construction Engineer.
4.Category 4 Devices . Category 4 Work Zone Devices are large trailer mounted devices such as sequential arrow boards and changeable message signs. Standards for rating Category 4 devices as "crashworthy" have not been developed.
d.Materials for Fab rication, Construction, and Installation . Materials used in the fabrication, construction and installation of the construction signs, barricades and other devices shall conform to the requirements of Article 104.04, plan details, the MUTCD and the details noted in this Section: Sign panels may be fabricated from one of the types of material shown below: Material Min. Panel Thickness * Sign Face Area Aluminum Flat Sheets 0.080 inches {2.00 mm} All sizes Steel Flat Sheets 0.075 inches {1.90 mm} All sizes Plastic Flat Sheets 0.250 inches {6.35 mm} All sizes Exterior Plywood Sheets, Grade A -C 0.50 inches {13 mm} 0.75 inches {19 mm} Up to 16 square feet {1.5 m²} Over 16 square feet {1.5 m²} *NOTE: Any sign panel installation using Standard Mounting procedures, which in the opinion of the Engineer does not provide a reasonably rigid sign installation, shall be strengthened by the use of additional supports and/or backing stringers. Sign background and messages shall be formed using materials noted for such in Articles 880.02 and 880.03. To permit visual verification of proper use, each type sheeting shall display an identifiable symbol, on the face of the sheeting, in a repeat pattern. When no pre -requirements are specified for units, they sha ll comply with the manufacturer's specifications as approved by the Department under the provisions of Section 32 -5-36 of the Alabama Code. Items are not required to be new. Used items may be acceptable provided the following conditions are met: • Units are in good repair, clean and structurally sound. • Reflective sheeting on any unit is clean and in good repair. • All legends and messages are sharp, clean and legible. • Reflectivity of said units during the hours of darkness shall provide acceptable, clear and uniform delineation without dead spots. No test reports are required, but the Engineer shall visually inspect all units and accessories for compliance with the various dimensional and material stipulations noted before approving their use in the work. The ap proval of any unit for use is subject to satisfactory field performance and does not preclude the Engineer ordering replacements of units; said replacements for these previously approved units shall be without additional compensation.
740.03 Construction Requirements.
e.Pilot Car, Flaggers, and Flagging Equipment . The pilot car, flaggers, and all flagging equipment shall meet the requirements of the MUTCD. The pilot car shall be a registered motor vehicle designed for use upon a highway. "Off -road" type vehicles will not be allowed .
740.03 Construction Requirements.
a.Traffic Control Personnel, Devices, Equipment and Training .
1.Contractor's Employees Responsible for Traffic Control . The Contractor shall assign an employee to have the primary responsibility and sufficient authori ty for the implementation and maintenance of traffic control operations. This employee shall have the responsibility of making modifications to the traffic control that may be necessary because of changing circumstances during construction. The Contractor shall also assign an employee to be available during non -work hours to respond to calls involving the maintenance of traffic control devices. The Contractor shall provide the Department with the contact information in writing for these employees at the preconstruction conference. The Contractor shall also notify the local law enforcement agency in writing with a copy to the Project Manager of the contact information for these employees.
2.Installation of Traffic Control Devices and Equipment . All traffic c ontrol devices necessary for the first stage of construction shall be properly placed and in operation before any construction is allowed to start. When work of a progressive nature is involved, such as resurfacing a road under traffic, the necessary signs shall be moved concurrently with the advancing operation. All construction signs shall be erected in a workmanlike manner such that all supports are vertical, sign panels generally perpendicular to the travelway and legends horizontal so that they effecti vely convey the intended message. These signs shall be mounted on stationary or temporary supports as directed by the Engineer and dependent on the type work being performed. In general work being performed at spot locations and of short duration will necessitate the use of temporary supports properly ballasted for stability. If the construction signs are not to be lighted, the supports shall not extend above the top edge of the sign panel. The location, legends, sheeting, dimensions, spacing of supports, a nd horizontal and vertical placement with respect to the pavement of warning signs, barricades and other traffic control devices shall be as required by plan details, MUTCD and as directed or approved by the Engineer. The Contractor must advise and have th e approval of the Engineer prior to installing or removing traffic control devices from the project.
3.Moving and Covering Traffic Control Signs and Other Devices While Not In Use. During periods when signs and other devices are not being used for traffic control they shall be removed from the work area, covered with the specified material or otherwise positioned so they do not convey their message to the traveling public. If covered, the covering material shall be 1/2 inch {13 mm} (nominal size) exterior plywood cut to fit the shape of the sign panel. The covering material shall be installed in accordance with the plan details and in such manner that no damage will occur to the sign panel during installation. Covering material shall be maintained in a neat and workmanlike manner during its use.
4.Lighting for Traffic Control Signs and Other Devices . All construction signs, barricades and other devices which require lighting, as designated by plan details or directed by the Engineer, shall be provided with warning lights or electric incandescent or fluorescent lighting. It will be the Contractor's responsibility to install electric lighting in a safe workmanlike manner and in accordance with the latest edition of the National Electrical Code, National Electr ical Safety Code and/or all local codes. The Contractor will be responsible for investigating, procuring and bearing the expense of a continuous power source whether by battery, generator or commercial A.C. supply.
5.Flaggers Flaggers with proper attire a nd flags shall be provided when ordered by the Engineer or when the Contractor deems flaggers necessary to safely handle traffic through the construction zone. Flaggers are considered a general requirement of all traffic control schemes and no direct payment will be made for such.
740.03 Construction Requirements.
6.Engineer's Actions to Address Inadequate Traffic Control . If the Engineer determines that the proper provisions for safe traffic control are not being provided and maintained by the Contractor the Engineer will order suspension of the work until the proper level is achieved. In cases of serious or willful disregard for safety of the public by the Contractor, the Engineer may restore the traffic control measures to proper condition and deduct all costs of this work from monies du e or becoming due the Contractor.
7.Training Requirements . The Contractor's personnel involved in the implementation, operation, and inspection of traffic control shall be trained appropriate to the decisions each individual is required to make in accordance with 23 CFR 630 Subpart J. The Contractor's personnel shall have completed the training prior to performing the traffic control work. The Contractor shall furnish a written certification at the preconstruction conference that is worded as follows: “I do hereby certify that all personnel who are involved in the implementation, operation, and inspection of traffic control on the referenced project are trained, or will be trained prior to beginning work, appropriate to the decisions each individual is required to make in accordance with 23 CFR 630 Subpart J”. This wording shall be followed by the signature of an authorized representative of the Contractor. Employees shall receive periodic training updates that reflect changing industry practices. The Contractor shall maintain records of the training. The records shall include dates of training, name of instructor, name of attendee, length of course, and topics covered. The records shall be available for auditing by the Engineer.
b.Supplementary Items .
1.Area Lighting. Area lighting is designated for use at locations where standard delineation devices are not considered sufficient to properly guide the traveling public through the construction work nor advise them of the hazardous conditions which exis t. The primary use will be in the areas of crossovers and intersections which are not clearly distinguishable during hours of darkness. Area lighting may consist of one or more area lights. An area light shall consist of a 250 watt mercury vapor light or e quivalent, mounted on a 12 foot {3.6 m} mast arm attached to a Class 7 wood pole of sufficient length to provide a 30 foot {9 m} luminaire mounting height above the elevation of the outside edge of paving, unless otherwise shown by plan details. These ligh ts will be placed at locations designated by the Engineer. If possible, the locations should be such that the lights will adequately light the area, but not present a hazard to the traveling public. Bracing or guying of poles which is unsightly or presents a hazard will not be allowed. It will be the Contractor's responsibility to investigate, procure and bear the expense of the power source for these lights whether by commercial A.C. current or generator and to insure that these light sources are installed in a safe workmanlike manner and in accordance with the latest editions of the National Electrical Code, National Electrical Safety Code and/or all local codes.
2.Special Construction Signs . Special construction signs shall consist of signs which require special fabricated sign panels or special mounting requirements; such signs will be designated as "Special" on the construction plans.
3.Pilot Car Operation . Pilot car operation and associated flagging shall be performed as described in the MUTCD. Flagmen and flagging devices are considered a necessary requirement of the pilot car operation and no direct payment will be made for such.
c.Maintenance . The Contractor shall assume full responsibility for the continuous and expeditious maintenance of all construction warning signs, barricades and other traffic control devices. Maintenance shall include but shall not be limited to replacement of sign panels, barricades and other devices which in the opinion of the Engineer are damaged or deteriorated beyond effective use, replacement of broken supports, plumbing of leaning signs, cleaning of dirty signs, barricades and other devices, repair of defaced signs, replacement of stolen items, etc. All items used for traffic control shall be generally maintaine d in its original placement condition and such maintenance will be considered a part of the original installation cost. Failure to maintain all traffic control devices in such manner as to provide adequate continuous safety to the public will be cause for action by the Engineer as noted in the last paragraph of Subarticle 740.03(a).
740.05 Basis of Payment.
d.Liability . Reference is made to Section 107 of the Specifications which covers the legal responsibilities of the Contractor to the traveling public. Although the Department will be designating and directing the placement of certain traffic control devices, the Contractor is not relieved of his responsibility to continuously review and maintain all traffic handling measures and insure himself that adequate provisions have been made for the safety of the public and workmen. Construction signs and other traffic control devices specified by plan details are considered the necessary requirements for satisfactory traffic control. This does not preclude the Engineer from ordering, or the Contractor from requesting for approval, additional signs or traffic control devices to safely handle unforeseen traffic situations, in which case they would be paid for. The Contractor may, with the approval of the Engineer, furnish additional traffic control devices, at no cost to the Department, to protect his work and/or workmen.
740.04 Method of Measurement.
The various items used in the handling of traffic through construction zones will be measured for payment as follows: Construction Signs and Special Construction Signs which are specified by plan details or ordered by the Engineer and approved for use will be measured in square feet {square meters} computed from measurements of the actual sign panel installed (no deductions will be made for cor ner radii). The sign supports and mounting hardware are considered incidental to the use of these sign units; hence no separate measurement or payment will be made for the supports and hardware. Measurement for payment under the Item of Special Constructio n Signs will only be made on signs designated as "Special" by plan details or ordered as "Special" by the Engineer. Drums will be measured individually for the number ordered and furnished. Cones will be measured per each and shall be 36 inches {900 mm} hi gh with a ballasted base. Cones of smaller height may be used for operations such as pavement striping and marking, but no direct payment will be made. Ballasts for cones will be measured per each for each weight {mass} ordered, accepted, and used. Barrica des will be measured individually for the type designated and furnished. Delineators will be measured per each which includes a 3 inches {75 mm} in diameter reflector of designated color, mounted on a #2 {3 kg/m} steel post or equivalent aluminum post as s pecified by Part VI of the MUTCD. Warning lights will be measured per each for the type furnished. Electrical incandescent or fluorescent lights will be measured individually for each light installed. Area lights will be measured individually for each ligh t assembly installed. Vertical panels will be measured per each installation for the number of installations ordered and furnished, which shall include the panel, or panels, post, and hardware. A single- sided installation shall be an installation requiring a panel on only one side of the post. A double -sided installation shall be an installation requiring a panel on each side of the post. The construction plans may contain traffic handling schemes detailing the signs, barricades and other traffic control devices to be installed at certain locations or in some cases for the entire project. If specified on these traffic handling schemes, and a lump sum pay item is provided, payment shall be made on a Lump Sum basis for all signs and devices detailed on these s chemes. Signs, barricades, and other traffic control devices included in this Lump Sum measurement shall meet all requirements as outlined in this Section. Other traffic control items such as traffic control stripes, legends and markings, portable concrete barriers, sequential chevron and arrow boards and pavement markers when so required will be measured and paid for under the appropriate Section for such provided in the Specifications. Measurement of Item 740 -O, Pilot Car, will be the actual number of uni ts (per Each) ordered and accepted. No direct measurement or payment will be made for a pilot car unless it is listed in the pay items of the contract. Portable Rumble Strips will be measured per lump sum.
740.05 Basis of Payment.
a.General . Payment for Construction Signs and Special Construction Signs measured as noted above will be paid for at the contract unit price bid which shall be full compensation for fabrication of sign panel
740.05 Basis of Payment.
with proper sheeting and legend, furnishing and erecting on proper supports, furnishing all mounting hardware, covering when not in use, handling and maintaining until project completion. Payment for drums, barricades, cones, delineators, warning lights, vertical panels, and ballasts for cones, measured as noted a bove, will be paid for at the contract unit price bid which shall be full compensation for fabrication, erection at designated locations whenever required, furnishing continuous power source for lights, handling and maintenance until project completion. Electric incandescent or fluorescent lights measured as noted above will be paid for at the contract unit price bid which shall be full compensation for furnishing all materials and mounting hardware, wiring, erecting, maintaining and investigating, procurin g and bearing the expense of continuous power supply. Area Lights measured as noted above will be paid for at the contract unit price bid which shall be full compensation for furnishing all materials and mounting hardware including 250 watt mercury vapor lamp or equivalent luminaire and luminaire mounting arm and Class 7 wood pole, wiring, erecting, maintaining and investigating, procuring and bearing the expense of continuous power supply. Item 740 -O, Pilot Car, measured as noted above will be paid for at the contract unit price bid which shall be full compensation for furnishing and operating the pilot car, for furnishing the pilot car driver and flaggers, for all equipment and materials necessary to complete the work. Item 740 -P, Portable Rumble Strips, m easured as noted above will be paid for at the contract unit price bid which shall be full compensation for fabrication, for installation at designated locations whenever required, and for handling and maintenance until project completion. Payment for Items 740- B - M and 740- P will further include all costs in relocating, removing and returning these Items to the project when required to provide a complete traffic control system throughout the life of the project. No payment will be made beyond the maximum quantity of signs, barricades or other traffic control devices installed at any one time except when alternate sign panels are required for proper handling of the traffic, in such case both alternate panels will be measured for payment. The Lump Sum paymen t for traffic control devices specified by plan details shall be full compensation for furnishing all materials, power sources and mounting hardware, erecting, handling, relocating signs and devices within the indicated "Traffic Handling Scheme" and mainta ining all traffic control devices until project completion. If traffic control devices are deleted from the traffic handling scheme that is to be paid on a lump sum basis, deductions for the items deleted will be made from the lump sum cost in the amount o f the contract unit prices bid for the quantity of individual traffic control items so deleted. Traffic control items which are added to the lump sum traffic handling scheme will be paid for at the contract unit price for the item added. A lump sum payment will be considered as full compensation for "traffic handling scheme". Once construction signs or other warning devices are no longer needed within the designated limits of the lump sum "traffic handling scheme", they may be used in other areas of traffic control and payment will be made under the appropriate pay item. Unless otherwise designated on the construction plans, all signs, barricades, and other traffic control devices covered by this Section shall become the property of the Contractor at the com pletion of the project. The salvage value for these items shall be reflected in the contract unit prices bid. No payment will be made for stored materials under this Section unless the material in storage was either manufactured or purchased new for specif ic use on the project. No payment will be made for devices installed solely for the protection of the Contractor's work and which serve no useful purpose in protecting the safety of the public or workmen such as traffic cones for paint protection, devices installed to protect fresh concrete presenting no hazard, etc. The Contractor will be expected to submit a balanced bid for all traffic control items. The submission of unbalanced bid prices may result in loss of contract award.
b.Payment will be made un der Item No .: 740-A Traffic Control Scheme - per lump sum 740-B Construction Signs - per square foot {square meter} 740-C Special Construction Signs - per square foot {square meter} 740-D Channelizing Drums - per each 740-E Cones (36 inches {900 mm} high) - per each 740-F Barricades, Type ____ - per each 740-G Barricades, Type I, (Portable, 24 inches {600 mm} wide) - per each 740-H Delineators - per each 740-I Warning Lights, Type ____ - per each
741.02 Materials.
740-J Electric Incandescent or Fluorescent Light - per each 740-K Area Light - per each 740-L Vertical Panel Type * , ** Sided – per Each 740-M Ballast for Cone - per each 740-O Pilot Car - per each 740-P Portable Rumble Strips - per lump sum * Specify either I or II ** Specify either Single or Double SECTION 741 PORTABLE SEQUENTIAL ARROW AND CHEVRON SIGN UNIT
741.01 Description.
This Section shall cover the work of furnishing Porta ble Sequential Arrow and Chevron Sign Units and all services and operational supplies necessary to provide a functional sign unit during the life of the contract. Three categories of furnishing and use of these type sign units are covered by this Section. These categories are as follows: Pay Item 741 -A - The furnishing of a new sign unit, its use during the contract, its re -conditioning and title transfer to the Department upon completion of the project. Pay Item 741 -B - The use of Department furnished units during the contract, the re -conditioning of the unit after completion of the project and its return to the Department's storage yard. Pay Item 741 -C - The furnishing and use of units during the contract with the title remaining with the Contractor.
741.02 Materials.
a.Item 741-A. All sign units furnished by the Contractor for use under this Item shall be listed on List IV -3, WORK ZONE TRAFFIC CONTROL DEVICES, of the Department's "Materials, Sources, and Devices With Special Acceptance Requirements " Manual. Refer to Subarticle 106.01(f) and ALDOT -355 concerning this list. All sign units furnished for use under this Item shall be new units which include all of the latest modifications to manufacturers current production models. Each sign unit shall b e self contained and include message board, power supply and trailer.
b.Item 741-B. These units will generally meet the requirements of Subarticle (a) above and will be made available to the Contractor by the Alabama Department of Transportation for use during the course of the project. These units will have automatic dimming of lamp intensity for day and/or night operation. Operation manuals for these units will be furnished.
c.Item 741-C. All sign units furnished for use under this Item may be new or reconditioned units which were designed and manufactured specifically for use in traffic control which provide at least the following:
1.A minimum 4 foot x 7.8 foot {1.2 m x 2.4 m} message board of an appropriate design capable of producing a left or right hand mode for a sequential chevron (min. of 3 chevrons), flashing arrow, sequential arrow or sequential stem arrow using 5 inch {125 mm} diameter sealed beam lamps.
2.Electronic controls for operating messages at 30 -50 FPM with automatic dimming of l amp intensity for day and/or night operation capability.
3.Power source shall be capable of providing an adequate continuous power supply for at least 24 hours without refueling.
4.A trailer of substantial design for transporting the sign unit from one l ocation to another and to provide a stable setup at location of use.
Source: Alabama Standard Specifications for Highway Construction, 2022 Edition. Pages 684–689 of 934.