169549 — Pavement Markings

549.01 Description

Apply durable and nondurable pavement markings (lines, letters, numbers, arrows and symbols) to various surfaces at locations and in patterns as specified or as directed.

549.02 Materials

As specified.

549.03 Construction

549.03.01 Quality Control (QC). Submit a proposed Quality Control Plan (QCP) at least 30 days

prior to the pre-striping meeting. Address procedures for random sampling as specified in MSMT 729. Provide detail as to how the equipment and material will be controlled to ensure conformance with the specifications. Include the following.

549.03.02 Quality Assurance (QA). The Administration will provide certified technicians to

conduct quality assurance to:

549.03.03 Placement. Do not begin placement operations until the QCP is approved and a

walkthrough with the Engineer and pavement marking foreman has been performed to approve the layout. 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS

549.03.04 Widths. The traveled way lane widths and width of longitudinal lines shall be as

specified. Lane widths shall be measured from center to center of the lane lines once a control line is established for the lane configuration of the roadway. When measurements are taken from existing longitudinal lines, the point of reference shall be the center of the single line or the center of the space between dual lines. The traveled way lane widths are in compliance when they have an acceptable appearance and are within 2 in. of the proposed lane widths.

549.03.05 Alignment. Place markings in a straight and uniform manner. Lane lines are in

compliance when they have an acceptable appearance and are visually in alignment, with no more than a 3/8 in. variation in any 40 ft section of traveled way. Maintain longitudinal alignment through all intersections and breaks, even though the lines may discontinue. Do not apply markings over longitudinal joints. Offset the markings 2 in. Place surface applied tape back 1 in. from transverse joints or cracks.

549.03.06 Layout Markings. Remove layout markings that detract from the overall appearance

or function of the final markings as determined and at no additional cost. 549.03.07 Cleaning Pavement Surfaces. Prior to application, clean pavement surfaces of oil, dirt, grease, concrete laitance and other contaminants to a width 4 in. to 6 in. wider than the markings to be applied.

549.03.08 Marking Removal. Section 558. Remove existing pavement markings that conflict

with new or altered traffic patterns. Use an approved method and ensure that the pavement surface is not damaged by the process. Repair or replace damaged pavement at no additional cost.

549.03.09 Quality Control Test Strips. Conduct a quality control strip at the beginning of each

day’s operations for the contract or job to demonstrate that the application equipment is working properly and applying markings as required. Repeat the demonstration whenever there is a change in the equipment settings or as directed when the quality of the line being applied is in question. Authorization to proceed will be given when the quality control test indicates conformance. If the application of the control strip test strip is on the actual roadway, correct any application that is not in compliance.

549.03.10 Curing. Protect the markings until dry or cured by placing warning devices according

to the MdMUTCD or as approved. If a vehicle damages uncured markings, reapply the markings and remove marks left on the pavement by the vehicle at no additional cost. For pavements in service, only one lane of traffic will be permitted to close at a time.

549.03.11 Observation Period. Repair any defects in materials and workmanship of the

pavement markings for a period of 180 days for durable and 60 days for nondurable materials from the date the pavement is opened to traffic. The observation period for inlaid tape is 365 days. Time charges will not be assessed during the observation period provided all other work is complete. At the end of the observation period, the pavement markings will be inspected for durability, color, and retroreflectivity. The Contractor will be informed of pavement markings that have failed and that require corrective action. Pavement markings will be failed for any of the following conditions. 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS

549.04 Measurement and Payment

Payment for furnishing and applying pavement marking (lines, letters, numbers, arrows and symbols) will be made under the pertinent pavement markings items. Quality control will not be measured but the cost will be incidental to the other pertinent items specified.

549.04.01 Removal, Replacement, or Corrective Actions. Provide corrective actions for

markings unsatisfactorily installed or that fail during the observation period as determined and at no additional cost, including Maintenance of Traffic. The current road user fee will also be applied when traffic disruption occurs during corrective actions. 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS 550 — PAVEMENT MARKING PAINT CATEGORY 500 PAVING SECTION 550 — PAVEMENT MARKING PAINT

550.01 Description

Furnish and apply waterborne pavement marking paint as specified or as directed. Markings include longitudinal lines, legends (letters and numbers) and symbols.

550.02 Materials

Paint is a nontoxic lead free waterborne pavement marking and a non-durable material used for temporary or permanent markings. Select Pavement Marking Paint from the Qualified Products List (QPL). Pavement Marking Paint Glass Beads 951.01 951.09

550.03 Construction

Refer to 549.03.

550.03.01 Quality Control. Refer to 549.03.01. 550.03.02 Quality Assurance. Refer to 549.03.02. 550.03.03 Cleaning Pavement Surfaces. Refer to 549.03.07. 550.03.04 Quality Control Test Strip. Refer to 549.03.09. 550.03.05 Application Equipment. Use vehicle mounted application equipment capable of

applying pavement marking paint as approved. Provide access to the paint application equipment for inspection.