Main Roads Signage Sizes

SIGN SIZES IN THE PERTH METROPOLITAN AREA

Roads	Signs	Sign Size(1),(2)

Mitchell Freeway Kwinana Freeway Roe Highway Tonkin Highway Reid Highway (Including On & Off Ramps to all of the above)	All (except those listed below)	C
	Lane Ends Merge Right/Left Keep Left Signs GE7-6 "Emergency Only" signs	B A A
	Signs at Ramp terminal intersections.	As per Other Primary Distributors
	Advance Warning Flashing Signs: MR-WAW Series.	As per table in Section 1.2.3 of AWFS Guideline

Remaining Red (Primary Dist) All Green, Blue and Orange roads in the Metropolitan Functional Road Hierarchy.	All (except those listed below)	B
	All signs on Local Distributor (Orange) roads where 85th percentile speed is reduced to 40 km/h or through speed zoning, LATM, or geometry.	A
	Lane Ends Merge Right/Left	A
	Keep Left Signs	A
	Route Markers - 80 km/h & greater - 70 km/h & less	B A
	Speed Zone Change Signs - All Roads - Except, Roads in residential areas in rural townsites	C B
	Street Name Tags (MR-GS-3 & 4) - 90 km/h & greater - 80 km/h & less	B A
	Keep Left Unless Overtaking. (R6-29 - Previously G9-39).	C
	Advance Warning Flashing Signs: MR-WAW Series.	As per table in Section 1.2.3 of AWFS Guideline
	G9-10, G9-11, G9-12.	A
	GE7-6 "Emergency Only" signs	A
*LOCAL ACCESS ROADS*
Black Roads in the Metropolitan Functional Road Hierarchy.	All Regulatory Signs (except those listed below)	B
	All regulatory signs on Local Access roads where 85th percentile speed is reduced to 40km/h or through speed zoning, LATM, or geometry. All Keep Left Signs All Other Signs	A
	Street Name Tags (MR-GS-3 & 4) - 90 km/h & greater - 80 km/h & less	B A
	Advance Warning Flashing Signs: MR-WAW Series.	As per table in Section 1.2.3 of AWFS Guideline

Notes:-

(1) Where the size listed is larger than the largest specified version of the sign required (refer AS1742.1 and Main Roads Index of Signs), then the largest version shall be used. (eg R6-21 End Freeway largest size is "B").

(2) General exception on all roads: All signs attached to traffic signals or placed on narrow islands (1.2m width) shall be size "A". The sizes of all signs attached to overhead traffic signal mast arms shall be assessed on site.

SIGN SIZES OUTSIDE OF THE PERTH METROPOLITAN AREA

Roads	Signs	Sign Size (1)
HIGHWAYS, MAIN ROADS, PRIMARY, DISTRICT AND LOCAL DISTRIBUTORS Speed limit 70 to 110 km/h	All (except those listed below)	B
	All signs on Local Distributor roads where 85th percentile speed is reduced to 40km/h or through speed zoning, LATM, or geometry. Lane Ends Merge Right/Left Keep Left Signs G9-10, G9-11, G9-12 GE7-6 "Emergency Only" signs	A
	Route Markers 80 km/h & greater 70 km/h & less	B A
	Speed Zone Change Signs All Roads Except, Roads in residential areas in rural townsites	C B
	Keep Left Unless Overtaking. (R6-29 - Previously G9-39).	C
	Advance Warning Flashing Signs: MR-WAW Series.	As per table in Section 1.2.3 of AWFS Guideline
	Street name Tags (MR-GS-3 & 4 90 km/h & greater 80 km/h & less	B A
LOCAL ACCESS ROADS Speed Limits 60 km/h, or less	All Regulatory Signs (except those listed below)	B
	All regulatory signs on Local Access roads where 85th percentile speed is reduced to 40km/h or through speed zoning, LATM, or geometry. All Keep Left Signs All Other Signs	A
	Advance Warning Flashing Signs: MR-WAW Series.	As per table in Section 1.2.3 of AWFS Guideline

Notes:

(1) General exception on all roads: All signs attached to traffic signals or placed on narrow islands (1.2m width) shall be size "A". The sizes of all signs attached to overhead traffic signal mast arms shall be assessed on site.

CLASSIFICATION AND FUNCTION

In AS1742.1, signs are classified by function into 6 classes. The Main Roads WA's Index of Signs retains this classification system, except that Guide signs are split into 3 classes as indicated in Table 1. All Main Roads Signs Index signs have the prefix "MR-" before the letter code denoting the class of sign.

TABLE 1

SIGN CLASSIFICATION AND FUNCTION

Sign Classification	Index of Australian Standards Signs AS 1742	Main Roads Index of Signs
Regulatory Signs	Type R	Type MR-R
Warning Signs	Type W	Type MR-W
Guide Signs	Type G	Type MR-G (Directional Signs) Type MR-S (Service Signs) Type MR-V (Tourist Signs)
Guide Signs	Type GE	Type MR-GE
Temporary Signs	Type T	Type MR-T
Hazard Markers	Type D	Type MR-HM

Notes:

(1) The Main Roads Index of Signs contains signs developed for use in Western Australia, which are additional and complementary to the Australian Standard Manual of Uniform Traffic Control Devices.

(2) Where signs in the Main Roads and Australian Standards are similar, the signs contained in the Main Roads Index of Signs shall be used

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