Territory Stories

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

Parent handle


Citation address


Page content

ROAD FURNITURE AND TRAFFIC CONTROL DEVICES STANDARD SPECIFICATION ROADWORKS DoI REFERENCE TEXT December 2015 Page 98 erecting after 10 impacts head on, from an average sedan travelling at 60 km/h. After 2,000 hours of exposure in an Atlas Weatherometer the guide posts do not change colour by more than 10 points on a Delta E colour chart. The guide post material has a minimum Vicat softening point of 120C. Physical testing as specified. Resistant to termites. 14.4.3 Guide Post Characteristics Hold Point Provide guide posts which have the following: An anti-withdrawal device which will prevent the guide post from being withdrawn without dislodgement of the compacted backfill. Anti-withdrawal devices must be engaged on each and every guide post prior to installation of guide posts. Legible and indelible markings similar to those used to mark or uPVC sewer and water pipes, in letters no less than 5 mm high, showing month and year of manufacture and located approximately 400 mm from the top of the post. Stick-on labels are not permitted. Legible and indelible marking 380 mm from the bottom of the guide post, to indicate depth for installation. Stick-on labels are not permitted. Hold point - Provide a sample guide post from each batch purchased for this contract for approval before installing any guide posts. 14.4.4 Delineators RECTANGULAR RETROREFLECTORS Class 1 retroreflective material. Size to be 100 mm x 50 mm minimum for red delineators; 100 mm x 25 mm minimum for white delineators. CORNER CUBE RETROREFLECTORS Minimum face area for red and white delineators to be 4,400 square millimetres. 14.4.5 Installation Attach one red and one white delineator to each guide post, 50 mm from the top of the post. The red delineator to be attached to the convex side of curved guide posts where applicable. Attach any corner cube delineators required as specified. Red delineators to be on the left and white delineators to be on the right when viewed in the direction of travel. 14.5 ROAD SIGNS 14.5.1 General This subsection specifies the manufacture, supply, delivery and erection of road signs. 14.5.2 Materials Hold Point NON-REFLECTIVE MATERIALS In accordance with AS 1743. REFLECTIVE MATERIAL Use high intensity Class 1 standard in accordance with AS/NZS 1906.1 for all signs, including temporary signs, and hazard markers with the exception that all black legends are to be non-reflective. BLANKS Use aluminium marine grade alloy designation 5052 - H38. Thickness 1.6 mm. Steel sheets may only be used for temporary signs. MANUFACTURE Chemically clean aluminium blanks before painting or bonding of reflective material. Stamp the month and year of manufacture and the symbol DoI on the backs of all signs. POSTS Post sizes to conform to Table 14.3 Roadside Signs Mounting Selection Part 1 of 2 at 14.9 - Tables unless specified otherwise. See PROJECT SPECIFIC REQUIREMENTS in the RFT. Posts to be medium grade galvanized pipe with plain ends and constructed from a single length of pipe. Cap each post with a galvanized cap. Do not use Ingal posts. Standard; to AS 1074. ANTI-GRAFFITI COATING Hold Point Obtain Superintendents approval for the use of anti-graffiti film or coating products. Apply anti-graffiti products only to the new road signs specified by the Superintendent. 14.5.3 Supply and Delivery Supply all brackets, bolts, nuts and bracings. Fix bracings to the signs prior to delivery. 14.5.4 Location Signs to be located clear of vegetation and be clearly visible under headlight illumination. LATERAL PLACEMENT Lateral placement to be measured to the edge of the sign nearest the road. Lateral placement to be as follows: Unkerbed roads: 2 to 4 m clear from the edge of the traffic lane, and 600 mm minimum clear from the outer edge of the road shoulder.