Temporary Traffic Calming Measures

In 2015 the City of Ottawa, Traffic Services Branch, initiated a pilot project of Temporary (seasonal) Traffic Calming (TTC) treatments on a number of local and collector streets. The TTC treatment refers to the installation of flexible delineator signs or flex-stakes, on the centerline of a roadway, typically within school or playground areas.


The initial results showed the effectiveness of the TTC devices in reducing speed and increasing driver compliance with the posted speed limit. As the treatments are seasonal only, they were implemented in late June 2015 and were removed by December 2015.





Total 2015 Expenditure ($)
1 Monette 12,908
2 Mitic 4,895
3 Harder 1,764
4 Wilkinson 5,501
5 El-Chantiry 0
6 Qadri 7,053
7 Taylor 2,087
8 Chiarelli 0
9 Egli 14,226
10 Deans 16,680
11 Tierney 2,572
12 Fleury 14,268
13 Nussbaum 0
14 McKenney 8,851
15 Leiper 960
16 Brockington 3,859
17 Chernushenko 3,799
18 Cloutier 9,295
19 Blais 22,315
20 Darouze 27,220
21 Moffat 1,392
22 Qaqish 13,124
23 Hubley 3,341
Grand Total 176,102


The City of Ottawa’s Strategic Plan and the accompanying Strategic Initiatives were approved by Council in July, and the Department established the management of the program in August.


The total expenditure for Ottawa’s 23 wards equalled $176,102 of which Ward Six, Stittsville, utilized $7,053. Wards were allotted a maximum expenditure of $40,000 each which will be accrued into the 2016 calendar year.

Between August and December, most Councillors purchased, ordered, and/or installed several traffic calming measures, including the following:

– Centreline flex stake delineators

– Speed pavement markings

– Speed display boards

– Planter boxes

– Cyclo-zone delineators to create chicanes (artificial narrowing of a roadway)


The three streets in Stittsville that participated in the TTC Program received the following speed data as a result of the TTC project;






Pre TTC project, operating speed 56km/h, 7% compliance to posted 40km/h speed limit; During TTC project, operating speed 37km/h, 94% compliance to 40km/h speed limit;

Pre TTC project, operating speed 48km/h, 54% compliance to posted 40km/h speed limit; During TTC project, operating speed 45km/h, 63% compliance to 40km/h speed limit;



Pre TTC project, operating speed 53km/h, 18% compliance to posted 40km/h speed limit; During TTC project, operating speed 47km/h, 57% compliance to 40km/h speed limit;

This TTC project is a very low cost solution to speeding, that can be installed very easily and does not require any costly modifications to the roadway


In addition to these three streets;  Liard, Hartsmere, Hobin and two sections of  Westridge Drive (Deer Run and Coyote Park areas) participated this past season.  Once the results are available I will share this information with the community.


It should be noted that although 3 wards were unable to finalize purchases by December 31, all Councillors had identified locations for review and implementation prior to the end of 2015. Since most of the temporary traffic calming measures, such as flex stakes, must be removed for the winter season, many of the initiatives were either installed for a short period of time or put on hold until spring 2016. Approximately 80 additional locations were identified for review and implementation in late 2015 for seasonal measures. The remaining funds will carry forward to 2016.


Currently, the Temporary Traffic Calming Program Coordinators are meeting with each Councillor to determine the plan for installing temporary traffic calming measures in 2016. Upon completion of these meetings, action plans will be developed and will include details on costs and timing of installation. The plans will include measures funded under both 2015 and 2016 funding envelopes.

Furthermore, Councillors will receive updates on the status of their action plans and any relevant data that is ascertained from the field.


For any suggestions or inquiries regarding the Temporary Traffic Calming Program, please don’t hesitate to contact me at Shad.Qadri@ottawa.ca.