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Audio tactile profiled roadmarkings

Published: | Category: Materials , Roadmarking , Specifications | Audiences: Road traffic engineers & consultants, Roading contractors

This specification and guidance notes apply only to audio tactile profiled (ATP) roadmarkings. These roadmarkings include rumble strips and provide all three of audio and tactile (vibratory) and visual information to road users. ATP roadmarkings used on the state highway must be on the current list of type approved markings. ATP markings that have current approval in terms of M/24 for use on state highways are listed in M/24 notes.

Determination of retroreflectivity

Published: | Category: Materials , Roadmarking , Specifications | Audiences: Road traffic engineers & consultants, Roading contractors

This specification describes the procedure for determining the retroreflectivity of roadmarking material. A retroreflectometer shall be used having 30 metre geometry, i. e. an entrance angle of 88. 76°, and an observation angle of 1. 05°. The retroreflectometer shall be calibrated against national or international traceable standards.

Determination of heavy metal content in glass beads intended for use in pavement

Published: | Category: Materials , Roadmarking , Specifications | Audiences: Road traffic engineers & consultants, Roading contractors

This specification describes the procedure for determining the heavy metal content in glass beads intended for use in pavement marking materials. The primary testing method shall be by acid digestion followed by ICP-MS (inductively coupled plasma mass spectrometer). X-ray fluorescence (XRF) analysis is a suitable method to supplement ICP-MS as part of a quality system.

Long-life roadmarking materials

Published: | Category: Materials , Roadmarking , Specifications | Audiences: Road traffic engineers & consultants, Roading contractors

This specification and guidance notes set out requirements for marking materials which have a long service life and which are typically applied at thicknesses of about 0. 9 mm or more. The specification is applicable to these markings when applied over bituminous or concrete road surfaces. The list of approved long-life pavement marking materials include thermoplastic and cold applied plastic materials. The P22 Reflectorised pavement marking and P30 High performance marking specifications require that the marking materials used in roadmarking must be on the current list of approved products. The long-life materials listed in these notes have provisional approval for use on state highways.

Roadmarking paints

Published: | Category: Materials , Roadmarking , Specifications | Audiences: Road traffic engineers & consultants, Roading contractors

This specification sets out requirements for paints which are intended for use as roadmarkings on road surfaces. The specification is applicable to paints intended for use by spray application and paints intended to be incorporated with beads to give roadmarkings with retroreflective properties. Roadmarking paint used in method based contracts on the state highway must be on the current list of type approved paints in M/7 notes. See also M7 2017 Pilot specification for approved roadmarking products.
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