728.01 Description.
726.05 Basis of Payment.
a.Unit Price Coverage .
1.Item 726-A. The ordered and accepted Portable Concrete Safety Barrier of the designated type, measured as noted above, will be paid for at the contract unit price bid which shall be full compensation for the fabrication and furnishing of the complete barrier unit and its exclusive use for the duration of the contract, all ha ndling, hauling, installation, relocation, maintenance, removal and satisfactory disposal of the units when deemed of no further use on the project by the Engineer includes all tools, equipment, labor and incidentals necessary to complete the work.
2.Item 726-B. The ordered and accepted Portable Concrete Safety Barrier of the designated type, measured as noted above, will be paid for at the contract unit price bid which shall be full compensation for the fabrication and furnishing of the complete barrier u nit and its exclusive use for the duration of the contract, all handling, hauling, installation, relocation, maintenance, and when deemed of no further use on the project by the Engineer, the removal, repair, if necessary, and delivery of the units to the Department's local storage yard and includes all materials, tools, equipment, labor and incidentals necessary to complete the work.
3.Item 726-C. The ordered and accepted State Furnished Portable Safety Barrier units, measured as noted above, shall be pai d for at the contract unit price bid which shall be full compensation for the pick -up of barrier units from Departmental storage sites, all handling, hauling, installation, relocation, maintenance, and when deemed of no further use on the project by the En gineer, the satisfactory removal and delivery of the units to the Department's local storage yard, including all materials, tools, equipment, labor and incidentals necessary to complete the work.
4.Item 726-D. The ordered and accepted Portable Impact Atte nuators of the designated design, measured as noted above, will be paid for at the contract unit price bid which shall be full compensation for the fabrication and furnishing of the complete impact attenuator unit and its exclusive use for the duration of the contract, all handling, hauling, installation, relocation, maintenance, removal and satisfactory disposal of the units when deemed of no further use on the project by the Engineer and includes all tools, equipment, labor and incidentals necessary to co mplete the work.
5.Item 726- E. The ordered and accepted State Furnished Portable Impact Attenuators, measured as noted above, shall be paid for at the contract unit price bid which shall be full compensation for the pick -up of Attenuator units from Depart mental storage sites, all handling, hauling, installation, relocation, maintenance, and when deemed of no further use on the project by the Engineer, the satisfactory removal and delivery of the units to the Department's local storage yard, including all m aterials, tools, equipment, labor and incidentals necessary to complete the work.
b.Payment will be made under Item No .: 726-A Portable Concrete Safety Barriers, Type * - per linear foot {meter} 726-B Portable Concrete Safety Barriers, Type * - per linear foot {meter} 726-C State Furnished Portable Concrete Safety Barriers - per linear foot {meter} 726-D Portable Impact Attenuator ( ** ) - per each 726-E State Furnished Portable Impact Attenu ator - per each * Show specific type, if required. ** Description and model of attenuator assembly TRUCK MOUNTED IMPACT ATTENUATOR
728.01 Description.
This Section shall cover the work of furnishing Truck Mounted Impact Attenuator Units and all services and operational supplies necessary to provide a functional unit during the life of the contract. Impact attenuator units that attach by a trailer will also be considered as truck mounted.
728.02 Materials.
The Contractor shall retain ownership of the truck and impact attenuator unit, including all hardware and attachments, after their use on the project is complete.
728.02 Materials.
All truck mounted impact attenuator units furnished for use under this Sectio n shall be new or acceptable used units which include all of the latest modifications to manufacturer's current production models. The Contractor shall furnish the Engineer a copy of the certification by the testing agency that the attenuator meets the performance standards given in NCHRP Report 350, TL -2 for a work zone speed limit of 45 miles per hour and TL -3 for a work zone speed limit of 50 mph or greater. Truck mounted attenuators shall be used in accordance with the manufacturer's recommendations including the support truck weight and roll ahead distance. The impact attenuator shall have a standard trailer lighting system, including brake lights, tail lights, and turn signals.
728.03 Construction Requirements.
a.General . The truck mounted atten uator unit furnished under this Section shall be used when work is performed under traffic.
b.Maintenance . All truck mounted impact attenuator units shall be maintained in such a manner as to provide continuous service during their use on the project. Un its which become non -operational during use will require the Contractor to suspend work until the units can be repaired or replaced. The truck mounted impact attenuator units shall be stored in an approved secure storage area when not in use.
728.04 Method of Measurement.
Measurement of Truck Mounted Impact Attenuator Units will be made in complete functional units.
728.05 Basis of Payment.
a.Unit Price Coverage . The ordered and accepted truck mounted impact attenuator units under this item, measured as noted above, will be paid for at the contract unit price bid which shall be full compensation for the furnishing of the unit, complete with truck, and its exclusive use on the project, for providing all equipment, supplies, services, labor and incidentals necessary to operate and to maintain the units in good serviceable condition during the life of the contract.
b.Payment will be made under Item No .: 728-A Truck Mounted Impact Attenuator Unit - per each SECTION 729 INTELLIGENT TRANSPORTATION SYSTEMS
729.01 Description.
This Section shall cover the work of furnishing, installing and testing Intelligent Transportation Systems (ITS). Descriptions and definitions of the equipment, words and terminology used in the furn ishing and installing of Intelligent Transportation Systems (ITS) equipment are given in the Manual of Uniform Traffic Control Devices (MUTCD) and the publications of the Institute of Transportation Engineers (ITE), the National Electrical Manufactures Ass ociation (NEMA), the National Fire Protection Association (NFPA), and the International Municipal Signal Association (IMSA).
729.02 Materials.
All materials furnished for use shall conform to the requirements given in Section 893 and the requirements shown on the Plans, and/or listed on the Alabama Department of Transportation (ALDOT) “Materials, Sources, and Devices with Special Acceptance Requirements Manual” (MSDSAR). All
Source: Alabama Standard Specifications for Highway Construction, 2022 Edition. Pages 624–624 of 934.