Submit Roundabout Requests & Traffic Study - Calgary Bylaw

Transportation Alberta 4 Minutes Read · published February 11, 2026 Flag of Alberta

Calgary, Alberta residents and developers often ask where to submit requests for roundabout installations and for the traffic studies that support them. This guide explains municipal pathways, the City departments involved, typical steps for a request or a Traffic Impact Assessment, and what to expect from enforcement and appeals under Calgary authority. It is aimed at helping community members, engineers, and planners prepare and submit complete materials so City staff can evaluate safety and network impacts efficiently.

Where to start

Start by reviewing City of Calgary traffic-calming and traffic study guidance pages and then file a formal request or service request as instructed by City Transportation. For neighbourhood traffic calming or a request to consider a roundabout at a local intersection, the City’s traffic calming information explains criteria and the evaluation process City of Calgary — Traffic Calming[1]. For technical requirements for development-related traffic studies, consult the City’s Traffic Impact Assessment guidance Traffic Impact Assessment Guidelines[2].

Requests must include clear location, existing conditions, and the reason for the change.

Typical municipal pathway

  • Prepare a request or traffic study following City guidance and any developer TIA requirements.
  • Submit a service request or application through the City’s traffic concern/reporting page or via 311 for operational issues Report a Traffic Concern[3].
  • City Transportation reviews technical studies and evaluates site suitability, safety, network impacts and cost-sharing if applicable.
  • If approved, the City schedules design, procurement and construction, or refers the requirement to a development permit process if linked to private development.

Penalties & Enforcement

The City enforces bylaws, permits and road use requirements through Transportation and related departments; operational traffic enforcement is carried out by City bylaw staff and Calgary Police Service where provincial traffic law applies. Specific fines, fee amounts, or penalty schedules for unauthorised roadway works or bylaw breaches are not specified on the cited City pages and must be confirmed on the applicable bylaw or enforcement page cited below.[1][3]

  • Monetary fines: not specified on the cited page.
  • Escalation for repeat or continuing offences: not specified on the cited page.
  • Non-monetary sanctions: orders to stop work, requirements to restore public property, and prosecution in court where applicable; specific statutory references are not specified on the cited pages.
  • Enforcers and complaint pathway: City Transportation and Bylaw Enforcement, and Calgary Police Service for traffic regulation enforcement; report operational safety concerns via the City report page or 311.[3]
  • Appeals and reviews: appeal routes and time limits are not specified on the cited guidance pages and must be checked on the specific bylaw, permit or development decision documentation.
If you plan construction on public road right-of-way, obtain City approvals before starting work.

Applications & Forms

The City publishes technical guidance and indicates where to submit service requests, but specific form names, numbers, fees and precise submission checklists are not specified on the general guidance pages; applicants should follow the links below and contact City Transportation or submit via 311 for the current forms and fee schedules.[1][2][3]

Many operational requests for traffic review are initiated through 311 or the online reporting form.

How the City evaluates roundabout requests

Evaluation typically considers collision history, traffic volumes, pedestrian and cycling needs, intersection geometry, speeds, available right-of-way, and network effects. For development proposals, the Traffic Impact Assessment guidance sets out technical thresholds and modelling expectations for study submission and review.[2]

FAQ

Who do I contact to request a roundabout installation?
Start with City Transportation guidance and submit a service request via the City report-a-traffic-concern page or 311; the Transportation review team will advise next steps.
Do I need a formal traffic study?
If the change is tied to development or the City’s thresholds in the Traffic Impact Assessment guidance, a formal TIA will be required; otherwise the City may conduct or request targeted operational studies.
Are there fees for submitting a request?
Fee schedules and cost-sharing for infrastructure are not specified on the general guidance pages; contact City Transportation or consult the specific application information for fees.

How-To

  1. Check City traffic-calming and Traffic Impact Assessment guidance to confirm requirements and thresholds.
  2. Gather site data: maps, collision history, traffic counts, pedestrian data and any developer studies.
  3. Submit a service request or application via the City report page or 311 and attach supporting documents.
  4. Respond to City requests for additional information and attend any public consultation if required.
  5. If approved, follow City instructions for design approvals, permits, and construction coordination.

Key Takeaways

  • Begin with the City’s traffic-calming and TIA guidance to avoid delays.
  • Complete, documented studies and clear location details speed municipal review.

Help and Support / Resources

  1. [1] City of Calgary — Traffic Calming
  2. [2] City of Calgary — Traffic Impact Assessment guidance
  3. [3] City of Calgary — Report a traffic concern

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