2.5 Identification of Sign Supports The supports must be clearly marked with the supplier / manufacturer’s name, applicable Australian Standard, grade and any other information specified in the applicable Australian Standard. The marking must be applied after the application of any surface coating and consist of either indelible lettering or a durable, graffiti resistant, UV stable sticker. The marking / sticker must be visible once the support has been installed. 3. SELECTION OF SIGN SUPPORTS 3.1 Small / Medium Signs Small to medium size signs (i.e. general regulatory or warning type signs) must be supported by steel RHS supports complying with Table 3.1 Hollow Section Supports”. Circular Hollow Sections must not be used for “Rectangular small to medium size signs under any circumstances. 3.1 - RECTANGULAR HOLLOW SECTION SUPPORTS POST SIZE POST LENGTH (mm) x depth x wall thickness (mm) 3 200 75 x 38 x 3.0 or 80 x 40 x 1.6 ≤ > 3 200 to 4 200 80 x 40 x 2.5 ≤ 3.2 Large Signs Except for overhead signs, steel CHS supports (nominal 100 mm diameter) must be used where non-frangible posts are permitted. frangible posts are required, the posts must be either: aluminium CHS complying with Table 3.2 Deemed to be Frangible”; “Posts steel CHS complying with Table 3.2 Deemed to be Frangible”; or “Posts an approved proprietary frangible sign support in accordance with Clause 2.4 Frangible Posts”. “Proprietary TABLE 3.2 - POSTS DEEMED TO BE FRANGIBLE Circular Steel Posts Speed Zone Diameter x Wall Thickness (Km/h) (mm) < 80 80 x 3.3 < 70 90 x 3.3* < 60 80 x 5.0 or 100 x 3.5* < 40 125 x 3.5* Circular Aluminium 110 100 x 4.6/5.5 ≤ *indicates the preferred sizes for use on DPTI roads Note: All circular post sizes are shown as Nominal Bore (inside dimension) Overhead must be supported by cantilever, gantry or portal type structures. 3.3 Number of Supports
2.5 Identification of Sign Supports The supports must be clearly marked with the supplier / manufacturer’s name, applicable Australian Standard, grade and any other information specified in the applicable Australian Standard. The marking must be applied after the application of any surface coating and consist of either indelible lettering or a durable, graffiti resistant, UV stable sticker. The marking / sticker must be visible once the support has been installed. 3. SELECTION OF SIGN SUPPORTS 3.1 Small / Medium Signs Small to medium size signs (i.e. general regulatory or warning type signs) must be supported by steel RHS supports complying with Table 3.1 “Rectangular Hollow Section Supports”. Circular Hollow Sections must not be used for small to medium size signs under any circumstances. 3.1 - RECTANGULAR HOLLOW SECTION SUPPORTS POST LENGTH (mm) POST SIZE x depth x wall thickness (mm) ≤ 3 200 75 x 38 x 3.0 or 80 x 40 x 1.6 > 3 200 to ≤ 4 200 80 x 40 x 2.5 3.2 Large Signs Except for overhead signs, steel CHS supports (nominal 100 mm diameter) must be used where non-frangible posts are permitted. frangible posts are required, the posts must be either: aluminium CHS complying with Table 3.2 “Posts Deemed to be Frangible”; steel CHS complying with Table 3.2 “Posts Deemed to be Frangible”; or an approved proprietary frangible sign support in accordance with Clause 2.4 “Proprietary Frangible Posts”. TABLE 3.2 - POSTS DEEMED TO BE FRANGIBLE Circular Steel Posts Speed Zone (Km/h) Diameter x Wall Thickness (mm) < 80 80 x 3.3 < 70 90 x 3.3* < 60 80 x 5.0 or 100 x 3.5* < 40 125 x 3.5* Circular Aluminium ≤ 110 100 x 4.6/5.5 *indicates the preferred sizes for use on DPTI roads Note: All circular post sizes are shown as Nominal Bore (inside dimension) Overhead must be supported by cantilever, gantry or portal type structures. 3.3 Number of Supports
Part_R49_Signs_Installation_June_2016.docx