LED Road Signs program | Brisbane City Council

LED Road Signs program

In mid-2016, Brisbane City Council announced a commitment of $3.24 million to fund the Light Emitting Diode (LED) Road Signs program over four years. The program is a road safety initiative that involves the installation of permanent, highly visible LED road signs at known accident and traffic hotspots throughout Brisbane.

The aim of the program is to reduce the number of accidents and near-misses at these known hotspots. The road signs are designed to:

  • alert drivers of an upcoming intersection or traffic hazard
  • have drivers reduce their speed if they are travelling above the speed threshold that is pre-determined for that location.

About the signs

The LED road signs are designed with two main components:

  1. Lower section - a rectangular-shaped sign with 'SLOW DOWN' spelt out in highly visible LEDs.
  2. Upper section - a diamond-shaped sign featuring a symbol or icon representing the upcoming hazard at that location. Common diamond signs include symbols or icons for pedestrian crossing ahead, curve ahead, roundabout ahead and winding road ahead.

The LED road signs are permanently installed via a post and small concrete foundation on the Council-owned road verge. The signs are solar powered and have a small solar panel to keep the batteries charged.

How the signs work

The signs are vehicle activated, meaning they are triggered by an approaching vehicle. The LEDs on the signs are inactive (unlit) by default and as a vehicle approaches the speed is detected by the sign's radar.

The sign is only activated (lit) if a vehicle is travelling above the pre-determined speed threshold for that location. If the vehicle is travelling under the pre-determined speed threshold, the sign remains inactive.

The speed threshold at which the sign is activated is not the speed limit for the location, but a speed that is pre-determined as a safe speed to approach the upcoming intersection or traffic hazard.

Site selection for LED road signs

Local councillors work closely with Council officers to identify and prioritise suitable locations for the LED road signs. The shortlist of locations is based on data from:

  • Council's investigation history including known traffic hotspots and accident data
  • feedback from each local councillor
  • Queensland Government's Webcrash database.

Fact sheet

Download a fact sheet about the LED Road Signs program in your preferred format:

Suggest an LED road sign location

If you are concerned about traffic accidents or near-misses in your area, contact your local ward office to suggest a location for an LED road sign.

More information

If you have any questions, feedback, or would like more information about the program, you can:

11 October 2017