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Setting Speed Limits in Queensland

Important information about QLimits

The QLimits system will be decommissioned on 30 November 2018. The QLimits system does not align with the new speed limit review process in the revised version of the Manual of Uniform Traffic Control Devices Part 4: Speed Controls (MUTCD Part 4), which will be published on 30 November 2018.

Please consider this decommission date when undertaking speed limit reviews during the end of 2018.

The Department of Transport and Main Roads (TMR) will take a copy of the QLimits data for future reference, however after the 30 November 2018 you will be unable to log into QLimits to conduct a speed limit review, or access any information relating to previously completed speed limit reviews.

For further information on the revised MUTCD Part 4, including details about the new speed limit review process and the tools that are available for use, please email

If you are a technical officer involved in conducting speed limit reviews in Queensland, please email your contact details to and you will be added to the mailing list and sent details of the revised MUTCD Part 4 training workshops to be held in late 2018 / early 2019.

In Queensland, speed limits are set in accordance with Part 4 of the Manual of Uniform Traffic Control Devices (MUTCD). Setting speed limits in accordance with Part 4 of the MUTCD will ensure that speed limits are consistent and credible throughout the state. Main Roads and local governments set speed limits on roads under their control in accordance with the guidelines in Part 4 of the MUTCD. A number of factors and criteria are considered when determining what an appropriate speed limit might be for a particular road. These criteria include:
  • environment in which the road is located;
  • pavement, shoulder and lane width;
  • horizontal and vertical road alignment;
  • traffic volume, activity and prevailing speeds;
  • frequency of intersections and property access;
  • on-road parking activity;
  • type of roadside activities;
  • presence of unsignalised at-grade pedestrian crossings;
  • presence of traffic signals;
  • magnitude of property setback;
  • presence of linemarking, channelisation and medians; and
  • proximity of roadside hazards and standard of protection.

Speed limits are therefore determined after consideration of a number of safety factors, not simply the standard or appearance of a road. The Speed Limit Review software has been developed for Queensland Transport by ARRB Group to assist speed zoning practitioners in determining appropriate speed limits for roads in Queensland. This software is available only to trained professionals working for the Department of Main Roads and local governments throughout Queensland.

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