CATEGORY 500 PAVING SECTION 556 — PREFORMED THERMOPLASTIC PAVEMENT MARKINGS
556.01 Description
Furnish and install preformed thermoplastic pavement marking symbols, legends, and lines as specified in the Contract Documents and as directed.
556.02 Materials
Preformed Thermoplastic is a durable pavement marking material. Select preformed Thermoplastic Pavement Marking material from the Qualified Products List (QPL). Preformed Thermoplastic Pavement Marking Material 951.06
556.03 Construction
Refer to 549.03.
556.03.01 Quality Assurance/Quality Control. Refer to 549.03.01, 549.03.02.
556.03.02 Clean Pavement Surfaces. Refer to 549.03.07. 556.03.03 Application. Apply markings at the location, size and width as specified and as
directed. Use equipment recommended by the thermoplastic manufacturer. Preheat pavement surfaces when recommended by the manufacturer. Apply heat to the surface of the placed thermoplastic according to the manufacturer’s recommendations. Do not apply longitudinal or transverse pavement markings over longitudinal joints; offset 2 in. and as directed. Preheat pavement surfaces and heat the thermoplastic so as to not damage any joint filler. Protect adjacent marking materials from damage when preheating the pavement or heating the thermoplastic by shielding or setback methods. Preformed Thermoplastic Pavement Markings shall conform to the following:
a.Temperature. Apply preformed thermoplastic when the thermoplastic, ambient, and surface temperature, and relative humidity conform to the manufacturer’s recommendations. 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS
b.Color. MSMT 729.
c.Primer. Use a primer if thermoplastic is applied to Portland cement concrete or as recommended by the manufacturer.
d.Retroreflectance. MSMT 729. The minimum retroreflectance shall be 150 millicandelas/lux/square meter for yellow and 250 millicandelas/lux/square meter for white.
e.Thickness. Refer to MSMT 729. Apply 90 mil preformed thermoplastic.
556.03.04 Submittals. Supply MSDS, Product Data Sheets, and Quality Control Plans.
556.03.05 Packaging. The material shall be handled for shipping, unloading and storage
according to the manufacturer’s recommendations. Each shipping package shall be marked with the following information:
a.Manufacturer's name.
b.Description of item. (c) Date of manufacture. (d) Product code number. (e) Lot number. (f) Color.
556.04 Measurement and Payment
The payment will be full compensation for all pavement preparation, furnishing and placing of markings, testing, and for all material, labor, equipment, tools, and incidentals necessary to complete the work.
a.Preformed Thermoplastic Pavement Marking Legends (letters and numbers) and Symbols will be paid for at the Contract unit price per square foot.
b.Preformed Thermoplastic Pavement Marking lines will be measured and paid for at the Contract unit price per linear foot for the color and width specified. 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS 557 — SNOWPLOWABLE RAISED PAVEMENT MARKERS CATEGORY 500 PAVING SECTION 557 — SNOWPLOWABLE RAISED PAVEMENT MARKERS
557.01 Description
Furnish and install new snowplowable raised pavement markers (SRPM) and replacement components for existing markers as specified and as directed, and in conformance with the Maryland Manual on Uniform Traffic Control Devices. Snowplowable Raised Pavement Markers are durable materials. Select SRPMs from the Qualified Products List (QPL).
557.02 Materials
Holders Pavement Marker Reflector Lenses Epoxy Holder Adhesive Lens Adhesive 951.07 951.07 951.07 951.07
557.03 Construction
As specified in 549.03.
557.03.01 Quality Control. As specified in 549.03.01.
557.03.02 Quality Assurance. As specified in 549.03.02.
557.03.03 Quality Control Test Strip. As specified in 549.03.09. Install a minimum of
10 groove cuts spaced as specified to verify the accuracy and ability of the equipment and personnel. Repair or replace any incorrect groove cuts and any incorrect holder placements within the test strip at no additional cost to the Administration.
557.03.04 Pavement Marker Reflector Lenses. Reflector lenses for pavement markers shall be
the same color as the adjacent pavement marking except the back side shall be as follows.
a.One-Way Applications. The backside for One-Way Markers shall be red or blank as specified or as directed. 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS
Source: Maryland Standard Specifications for Construction and Materials, 2025 Edition. Pages 746–747 of 1,113.