Traffic calming is a measure available to the town that can be used to mitigate speeding in instances where higher speeds have been observed and conventional methods of speed deterrence, such as enforcement and education, have not been effective. Some examples of include line markings, radar speed display signs, speed cushions and roundabouts.
To initiate a traffic calming process a candidate location must first satisfy Warrant 1 – 85th Percentile Speed. Warrant 1 is obtained following a 48-hour speed survey conducted either in the spring and/or fall.
Warrant 1 requires 15 per cent of motorists to be driving at a speed greater than:
If Warrant 1 is met, locations will first receive a Radar Speed Display Sign (RSDS) unit. If speeds remain above the threshold after the RSDS is removed, the location then qualifies for line markings. If line markings are already present, the town will directly proceed to implement physical traffic calming measures.
The town has over ten years experience with traffic calming. Traffic calming measures are categorized as physical or passive.
The town’s existing passive traffic calming treatments consist primarily of line markings. They are intended to visually reduce the lane width and (in most circumstances) re-allocate some of road space to cyclists and to on-street parking. Passive traffic calming locations are indicated on Passive Traffic Calming Locations Map (pdf). In May 2016, Council approved adding Radar Speed Display Signs (RSDS) to the passive traffic calming measures. Oakville currently has 12 RSDS units across town.
Physical traffic calming treatments are more intrusive in nature and include modifying roadways with horizontal and vertical deflections that cause vehicles to slow down. The town’s existing physical traffic calming measures include concrete speed cushions (on narrow roads) and raised barrier medians (on wider roads). To date, these treatments have been applied to all elementary school zones in Oakville and they are indicated on Physical Traffic Calming Locations Map (pdf). In May 2016, Council approved expanding physical traffic calming measures beyond school zones and onto other local and collector roadways.
Detailed information about the traffic calming process can be found in Appendix E
There are currently three roadways that qualify for physical traffic calming in 2017.
As part of the process, affected stakeholders will be asked if they support the implementation of traffic measures on the roadway.
The town moves forward only after more than 50 per cent of affected stakeholders are in favour of the implementation. If it is determined that the affected stakeholders are not in support of a traffic calming review, then the process is terminated and the affected stakeholders are notified in writing.
The duration of a traffic calming study will be dependent on the type of proposed traffic calming measure, number of projects and available traffic calming budget for a given year.
Detailed information about Traffic Calming Process Update and Speed Limit Review can be found on the April 25, 2016, Community Services Committee agenda.
If you have any questions regarding the traffic calming program, or wish to initiate a request please contact:
Traffic Technologist Town of Oakville
Engineering and Construction Department
Oakville, ON L6H 0H3
Tel: 905-845-6601, ext. 3397