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HAZARD MARKER SIGNS RECOMMENDED PRACTICES, Study notes of Life Sciences

Hazard marker signs consist of black diagonal stripes on a yellow background. The WA-36 sign is used to mark an obstruction in the roadway which may be passed ...

Typology: Study notes

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HAZARD MARKER SIGNS
Issued: MAR 2008
Revised: OCT 2018
Page 1 of 3
RECOMMENDED
PRACTICES
PART HIGHWAY SIGNAGE
SECTION WARNING
SUB-SECTION
General
Motorists must be warned when they are
about to encounter a roadside hazard which
they should keep either left or right of. To
indicate to motorists which side(s) of the
hazard they should maneuver their vehicle
to, the WA-36 (L/R) hazard marker sign is
used.
Standard
The Hazard Marker is used to mark
obstructions adjacent to or within the
roadway, such as bridge piers and traffic
islands. The Hazard Marker may be used
alone, or mounted below other signs.
Hazard marker signs consist of black
diagonal stripes on a yellow background.
The WA-36 sign is used to mark an
obstruction in the roadway which may be
passed on either side.
WA-36 600 mm x 900 mm
450 mm x 900 mm
Colour Symbol and Border
Background Black
Yellow
Sheeting ASTM, Type IX or XI
The WA-36-L sign is used to mark
obstructions on the left side of the roadway.
WA-36-L 300 mm x 900 mm
Colour Symbol and Border
Background Black
Yellow
Sheeting ASTM, Type IX or XI
The WA-36-R sign is used to mark
obstructions on the right side of the
roadway.
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HAZARD MARKER SIGNS

Revised: OCT 2018

Page 1 of 3

RECOMMENDED

PRACTICES

PART (^) HIGHWAY SIGNAGE

SECTION (^) WARNING

SUB-SECTION

General

Motorists must be warned when they are about to encounter a roadside hazard which they should keep either left or right of. To indicate to motorists which side(s) of the hazard they should maneuver their vehicle to, the WA-36 (L/R) hazard marker sign is used.

Standard

The Hazard Marker is used to mark obstructions adjacent to or within the roadway, such as bridge piers and traffic islands. The Hazard Marker may be used alone, or mounted below other signs.

Hazard marker signs consist of black diagonal stripes on a yellow background.

The WA-36 sign is used to mark an obstruction in the roadway which may be passed on either side.

WA-36 600 mm x 900 mm 450 mm x 900 mm

Colour Symbol and BorderBackground BlackYellow

Sheeting ASTM, Type IX or XI

The WA-36-L sign is used to mark obstructions on the left side of the roadway.

WA-36-L 300 mm x 900 mm

Colour Symbol and BorderBackground BlackYellow

Sheeting ASTM, Type IX or XI

The WA-36-R sign is used to mark obstructions on the right side of the roadway.

HAZARD MARKER SIGNS

Revised: OCT 2018

Page 2 of 3

WA-36-R 300 mm x 900 mm

Colour Symbol and BorderBackground BlackYellow

Sheeting ASTM, Type IX or XI

Guidelines for Use

Where obstructions exist within or near the roadway and it is necessary to warn motorists of these obstacles so that they can safely maneuver their vehicle around the hazard, the applicable Hazard Marker sign should be installed.

Situations where Hazard Marker signs are typically used include, but are not limited to:

 On both sides of the approach to a bridge in each direction of travel (i.e., at every corner of the bridge)  Bridge piers  Raised islands for right turn channelization at an intersection  Type 6 log haul intersection jughandles

 At divided highway transitions Hazard Markers should not be used on exit gores of provincial highways.

Guidelines for Placement

Where used, the placement and mounting height will vary depending on the sign application. The most common applications of the Hazard Marker sign, and the corresponding appropriate placement, are described here.

Application 1: Hazard Marker sign supplements another sign on the same post

In this situation, the Recommended Practices guideline entitled Placement of Signs would dictate the vertical placement of the main/top sign, and the Hazard Marker sign should be mounted directly below.

Application 2: Hazard Marker used alone

Under these circumstances, the horizontal placement of the Hazard Marker sign should be consistent with the Placement of Signs guideline. However, the sign should be installed at a height of 1.2 metres above the near edge of the nearest travel lane to the bottom of the sign, as is done with Chevron Alignment signs.

Application 3: Hazard Marker on Guardrail or Bridge Rail

Guardrail/bridge rail heights may vary, but all Hazard marker signs installed on these rails should be mounted with a separation distance of 380 mm between the top of the rail and the bottom of the sign.