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Standard specification for road works 2015/2016



Standard specification for road works 2015/2016


Standard specification for road works; Reports; PublicationNT




Made available via the Publications (Legal Deposit) Act 2004 (NT).; Check within Publication or with content Publisher.


miscellaneous provisions ■ provision for traffic ■ clearing grubbing and rehabilitation ■ earthworks ■ conformance testing ■ pavements and shoulders ■ stabilisation ■ spray sealing ■ dense graded asphalt ■ slurry surfacing ■ miscellaneous concrete works ■ drainage works ■ protection works ■ road furniture and traffic control devices ■ pavement marking ■ landscape ■ ducting and conduits ■ traffic control signals ■ traffic counting stations ■ street lighting ■ directional (thrust) boring ■ measurement and payment ■ referenced documents ■ nt climate zones table ■ This document specifies the general standards of materials and workmanship required by the Department of Infrastructure for construction of civil road network assets




Roads -- Northern Territory -- Works -- Periodicals.

Publisher name

Department of Infrastructure

Place of publication



Second edition

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PAVEMENT MARKING STANDARD SPECIFICATION ROADWORKS DoI REFERENCE TEXT December 2015 Page 108 15.16.3 Placing Markers Place markers in accordance with the manufacturer's directions. Use marker types as follows: - Centre line: White, two way reflectors. - Lane line: White, one way reflectors. - Left edge line: Red, one way reflectors. - Right edge line adjacent to medians on dual carriageway: Red, one way reflectors. - Chevron areas:. Yellow, one way reflectors or yellow, two way reflectors. - Roads: Yellow, one way reflectors. Place the reflectors to face the oncoming traffic. Do not obscure the reflective faces by adhesive. Ensure that the surface finish is smooth. Discard markers which are not positioned correctly within the time recommended by the manufacturer for use of the adhesive. Remove adhesive from the road surface. Do not place markers over joints in concrete pavement. For reseal works where the existing seal has excess binder, or where Gilsabind is used: - Clean the road surface to expose the aggregate prior to installation of RRPMs. - Protect the RRPMs from traffic until the adhesive is fully set. - Locate the RRPMs to the outside of edge lines. 15.17 REMOVAL OF EXISTING MARKINGS HOLD POINT Hold Point Obtain approval from the Superintendent on the method used for line marking removal. Removal of pavement marking must not adversely affect the integrity of the road surface. When arrows, letters or figures are to be removed or temporarily blacked out, the removal pattern must be in the shape of a rectangle or square to minimise confusion to the motorist, particularly in wet weather or poor lighting conditions. Remove all materials and debris from removal operations and dispose at an authorised disposal site. Repair any surface defect caused by the removal process at no additional cost to the Principal.. The following methods may be considered and will be dependent on the type of surface, extent and application. 15.17.1 Machine Grinding This method may be considered for use on smaller removal jobs where surface finish is not a concern. Can be used on most asphalt and concrete surfaces. 15.17.2 Sandblasting Sandblasting is the preferred method for marking removal on asphalt and concrete surfaces. Use a skirt or guard around the blaster to minimise the spraying of material away from the immediate work area. Remove waste material before it can be transported by rain, wind or traffic. This will generally require the use of a vacuum attachment operating concurrently with the blasting operation or alternative method approved by the Superintendent. 15.17.3 Sealing Spray sealing is the preferred method for sprayed seal surfaces. Conform to specification requirements covered under SPRAY SEALING FOR MAINTENANCE in the Standard Specification for Road Maintenance. 15.17.4 Paint Blackout Paint blackout may be considered as a temporary measure only as markings retain a high reflection and possess low skid resistance. 15.17.5 Other Methods Other methods such as water blasting, heat lance or paint stripping may also be considered by the Superintendent. 15.17.6 Raised Reflective Pavement Marker Removal Where required, remove raised pavement markers by breaking the bond between the adhesive, the road surface and the base of the raised pavement marker. Repair all divots caused by the removal of raised pavement markers with hot melt adhesive or epoxy adhesive to the level of the surrounding pavement. 15.18 OTHER REQUIREMENTS Refer to PROJECT SPECIFIC REQUIREMENTS in the RFT.