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=6.03 Quality Guidelines=
The condition and maintenance of traffic control devices is critical as they serve as the first line of safety for the work zone and transportation customers.

The quality of temporary traffic control devices is referenced in the most current edition of the ''Quality Guidelines for Work Zone Traffic Control Devices and Features'' published by ATSSA. This document is available for MDOT staff through the [https://www.michigan.gov/mdot/Business/work-zone-mobility WZMU] or for purchase directly from ATSSA. Additional information may be found at [http://www.atssa.com/ http://www.atssa.com/] (online store).

Additional maintenance and cleaning requirements are shown in Sections 812 and 922 of the Standard Specifications for Construction. Inspection methods and acceptance criteria are detailed in ''Temporary Traffic Control Certification and Acceptance Procedure'' of the [https://www.michigan.gov/mdot/business/construction/materials-quality-assurance-procedures Materials Quality Assurance Procedures Manual].

==6.03.01 Channelizing Device Quality Process==
(Added 12/3/2020)

This section serves to give guidance for the payment of drums and channelizing devices, as described in the section titled “Damage Compensation” in Section 812 of the [https://mdotjboss.state.mi.us/SpecProv/specBookHome.htm Standard Specifications for Construction]. This section also provides examples of drums and channelizing devices rated acceptable, marginal, and unacceptable.

Damaged devices are defined as those devices that have fallen into the unacceptable range per the ''American Traffic Safety Services Association Quality Guidelines for Temporary Traffic Control Devices and Features'' (ATSSA QG) after initial inspection.

A flat rate for replacement for drums and 42” channelizing devices has been agreed upon by MDOT and MITA. These rates, detailed in the specifications, will be used for damage compensation.

===A. Process===
Until initial inspection of the traffic control devices has been made, no damaged compensation claims have to be paid, unless otherwise determined by the engineer. No damage compensation or initial payment will be made for devices failing initial inspection. Devices must also be placed appropriately to be eligible for damage compensation. Devices will be assumed to be placed appropriately unless it is otherwise documented.

If Project Staff witness a contractor, or any individual working for the contractor, damage a traffic control device, no damage compensation will be paid. This must be documented in order to refuse payment.

During the course of the project, after initial inspection, MDOT will flag marginal devices with a blue ribbon for replacement at stage changes, or when more than 25% of the total quantity on the project are in marginal condition. At these times, as stated in the ATSSA Quality Guidelines, all devices within the work zone must be brought up to 100% acceptable condition.

If at any time, any Contractor is witnessed tampering with the marginal marking method, the Engineer may require all marginal devices on the project to be upgraded to acceptable outside the timeframes detailed in the ATSSA Quality Guidelines.

The Contractor may clean the drums or 42” channelizing devices to bring them back up to the acceptable condition, but will need permission from Project Staff to remove the ribbon, if the devices are to be placed back on the same project.

Prior to payment, Project Staff need to meet with the Contractor to determine which devices are damaged to the unacceptable range. Once a device has been deemed unacceptable and has not been documented as misplaced or damaged by the Contractor, MDOT will spray paint an X on the device so it is taken out of inventory. These devices will then be removed from the project and disposed of by the Contractor. If any device is removed from the project before inspection, no damage compensation payments will be made.

If traffic control remains on the roadway after project completion (excluding water and cultivating) and is waiting to be picked up, no damage compensation will be paid.

The goal of this process is to increase the quality of the traffic control devices on projects. Documenting and removing the marginal & unacceptable devices will lead to a safer work zone for the workers and the motoring public.

For questions or concerns about this process please contact the [https://www.michigan.gov/mdot/business/work-zone-mobility WZDE].

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====Exhibit 6-20: Acceptable Drums====
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====Exhibit 6-21: Acceptable Drums====
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====Exhibit 6-22: Marginal Drums====
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====Exhibit 6-23: Marginal Drums with Blue Ribbon====
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====Exhibit 6-24: Unacceptable Drums====
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====Exhibit 6-25: Unacceptable Drums====
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====Exhibit 6-26: Acceptable 42" Channelizing Devices====
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====Exhibit 6-27: Marginal 42" Channelizing Devices====
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====Exhibit 6-28: Unacceptable 42" Channelizing Devices====
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====Exhibit 6-2====
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==Categories==
* [[Work Zone - Chapter 6 | Chapter 6: Traffic Control Devices and Implementation]]
* [[Work Zone - Index | Work Zone Safety and Mobility Manual Index]]

Work Zone - 6.03 Quality Guidelines - Revision history

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