Common use of INSTALLATION PERFORMANCE MEASURES Clause in Contracts

INSTALLATION PERFORMANCE MEASURES. To ensure total understanding of what is expected in the application of any permanent pavement marking material on new pavement surfaces in the City of ▇▇▇▇▇▇▇, the following guidelines shall be followed. On streets receiving a thin surface treatment only, such as micro-surfacing or slurry seal, some of the performance measures may be waived by the inspector.  Thermoplastic Installation All thermoplastic lines shall be of uniform thickness, with well- defined edges and squared off beginnings and endings of all lines. All thermoplastic lines will have minimal dribbles, runs and overlaps. In the event thermoplastic long lines must stop and then continue, the restart shall line up to within 13mm (½ inch) of the existing long line and maintain a totally straight line. Hand pushcarts shall be used when doing crosswalks and stop bars. When the crosswalk or stop bar cannot be laid continuous, the startup of the line shall be within 6mm (¼ inch) of the initial line. A maximum of two passes can be made in order to achieve the desired width of stop bars. When two passes are used, a maximum of 3mm (1/8”) gap shall be maintained between the two passes instead of a material overlap. The application equipment shall be mobile and maneuverable to the extent that straight lines can be followed and normal curves can be made in a true arc. Thermoplastic pavement marking materials shall not be applied when pavement temperatures are below 10 degrees C (50 degrees F), or when the surface of the pavement shall show evidence of moisture. Temperatures should be at least 10 degrees C (50 degrees F) and rising. Thermoplastic material will not properly adhere to pavement if moisture is present. Should rainfall occur within 24 hours prior to application, the surface moisture test (plastic wrap or roofing paper method as approved by the inspector) must be performed, and approval obtained from the Inspector.

INSTALLATION PERFORMANCE MEASURES. To ensure total understanding of what is expected in the application of any permanent pavement marking material on new pavement surfaces in the City of ▇▇▇▇▇▇▇, the following guidelines shall be followed. On streets receiving a thin surface treatment only, such as micro-surfacing or slurry seal, some of the performance measures may be waived by the inspector.  • Thermoplastic Installation All thermoplastic lines shall be of uniform thickness, with well- defined edges and squared off beginnings and endings of all lines. All thermoplastic lines will have minimal dribbles, runs and overlaps. In the event thermoplastic long lines must stop and then continue, the restart shall line up to within 13mm (½ inch) of the existing long line and maintain a totally straight line. Hand pushcarts shall be used when doing crosswalks and stop bars. When the crosswalk or stop bar cannot be laid continuous, the startup of the line shall be within 6mm (¼ inch) of the initial line. A maximum of two passes can be made in order to achieve the desired width of stop bars. When two passes are used, a maximum of 3mm (1/8”) gap shall be maintained between the two passes instead of a material overlap. The application equipment shall be mobile and maneuverable to the extent that straight lines can be followed and normal curves can be made in a true arc. Thermoplastic pavement marking materials shall not be applied when pavement temperatures are below 10 degrees C (50 degrees F), or when the surface of the pavement shall show evidence of moisture. Temperatures should be at least 10 degrees C (50 degrees F) and rising. Thermoplastic material will not properly adhere to pavement if moisture is present. Should rainfall occur within 24 hours prior to application, the surface moisture test (plastic wrap or roofing paper method as approved by the inspector) must be performed, and approval obtained from the Inspector.