The information below is intended to reflect the preferred practice of Main Roads Western Australia ("Main Roads"). Main Roads reserves the right to update this information at any time without notice. If you have any questions or comments regarding the Application and Approval Guidelines please contact John Moore - Traffic Manager, Traffic Operations & Services Branch, Road Network Services Directorate, by e-mail or on (08) 9323 4604.
To the extent permitted by law, Main Roads, its employees, agents, authors and contributors are not liable for any loss resulting from any action taken or reliance made by you on the information herein displayed.
Main Roads Western Australia will install and maintain KEEP CLEAR pavement marking where traffic blocking intersections significantly impedes traffic flow and safety along distributor routes.
This policy and guidelines does not include Keep Clear requirements at railway level crossings and Principal Shared Paths, which are the subject of separate documents.
Unless otherwise indicated in the text of this Guideline:
Emergency Service Facility means ambulance depot, fire station, hospitals with emergency departments.
Pedestrian Crossing Facility means a signalised pedestrian crossing, zebra crossing or children's crossing.
Main Roads means Main Roads Western Australia.
VPD means vehicles per day.
Vehicles queuing across intersections or junctions can significantly restrict traffic flow and create hazardous situations for other road users. In accordance with Road Traffic Code 2000 Regulation 111 (1) drivers shall not enter or attempt to cross an intersection if the intersection or carriageway beyond it is blocked.
The use of KEEP CLEAR markings should be limited to situations where traffic blocking intersections significantly impedes traffic flow or has the potential to create hazardous situations for other road users. It shall be primarily installed to improve the ability of drivers to exit the major road and is not intended for the purpose of improving access from the minor road.
The purpose of this document is to detail Main Roads requirements for use of and location of KEEP CLEAR pavement marking on applicable routes.
Main Roads primary objective of these guidelines is to allow practitioners to determine where KEEP CLEAR marking may improve traffic efficiency without compromising safety of road users.
Main Roads specific requirements for the installation of KEEP CLEAR marking are as follows:
KEEP CLEAR marking at a 4 way intersection should not be installed unless:
At most minor roads near signalised intersections or crossings, it should be accepted that drivers will inadvertently block the minor road junction. The use of KEEP CLEAR marking is not warranted if this occurs occasionally during heavy traffic conditions.
KEEP CLEAR marking at a T-junction may be considered where:
Figure 1: Situation where KEEP CLEAR message may be used
KEEP CLEAR marking shall not be used as a device to minimise delays to vehicles entering or leaving private or business properties. KEEP CLEAR marking shall not be installed for private residences, shopping and commercial centres and / or business car parks.
KEEP CLEAR marking at an Emergency Service Facility may be considered where:
The applicant should provide the following information: