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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.

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Department of Infrastructure

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Second edition

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ROAD FURNITURE AND TRAFFIC CONTROL DEVICES STANDARD SPECIFICATION ROADWORKS DoI REFERENCE TEXT December 2015 Page 99 Kerbed roads: 500 mm to 1000 mm from the front face of the kerb. HEIGHT Height to be measured as the clearance to the lowest edge of the lowest sign in an assembly. Heights for signs to be as follows: Table 14.1 Heights for signs Unkerbed Roads Fingerboard (G3) and street name signs (G5): 2 m above the near edge of the pavement. Other signs: 1 m to 1.5 m above the near edge of the pavement. Kerbed Roads: Signs overhanging a footway: 2.5 m minimum above footway. Signs not overhanging a footway: 1 m to 1.5 m clearance except for those specific signs on medians and islands given below. Table 14.2 Height of specific signs on medians and islands The following signs, when used on medians and islands, to have a clearance 150 mm above the kerb: D4-1-2 Hazard Marker D4-2-2 Hazard Marker D4-3 Hazard Marker R2-3 (Keep Left) (Keep Right) R2-5 (No U Turn) R2-6 (No Right Turn) (No Left Turn) R2-15 (U Turn Permitted). 14.5.5 Installation Conform to Table 14.3 Roadside Signs Mounting Selection Part 1 of 2 Tables. Install posts vertically. Provide and install galvanised steel sleeves when installing sign posts in concreted or paved locations. Sleeves, when specified, to be 50 mm longer than the specified ground anchor depth and extend 50 mm above the finished surface level. Attach the post to the sleeve with a galvanized M10 bolt, 25 mm from the top of the sleeve. Encase the post, or sleeve when used, in a footing of 20 MPa concrete. Orientation of sign face: Vertical, and turned 3 degrees to 5 degrees horizontally from oncoming traffic on straight sections. On curves, at right angles to centre line of road. Exception: Parking signs to be oriented 5 degrees from parallel to the kerb to face oncoming traffic. 14.5.6 Reinstatement and Relocation of Existing Signs Dismantle existing post and signs carefully. Store in a manner to prevent damage. Backfill the hole left by the post and its footing and compact the fill to the same density as the surrounding area. Erect signs in new locations as shown on the drawings. 14.5.7 General Requirements - Spacing between posts: - 2 post signs - 0.6 times sign width. - 3 post signs - 0.4 times sign width. - 4 post signs - 0.3 times sign width. - Brace spacing to be 380 mm maximum. - Adopt the nearest size in the list for intermediate sizes. - Post sizes for galvanized pipe posts are for sign clearance of less than 2 m above the pavement. For sign clearances greater than 2 m, increase the nominal diameter of the pipe size by a percentage equal to the percentage increase in height above 2 m. - Where signs are erected in groups treat the overall dimensions of the group as one sign size to determine the post requirement from Table 14.3 Roadside Signs Mounting Selection Part 1 of 2 Tables. 14.6 FLOOD GAUGE POSTS 14.6.1 Posts and Gauges Use a standard flood gauge in accordance with Standard Drawing CS 1301. Use galvanized posts, single length 150 mm x 50 mm x 3 mm RHS with a 3 mm end cap welded to the top. Paint welds with zinc rich organic paint to APAS specification 2916. 14.6.2 Installation Erect the post vertically at the outer edge of the road shoulder or margin, on the left hand side when viewed in the direction of travel.