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OBC DIVISION B · PART 3 · SECTION 3.13 — RAPID TRANSIT STATIONS

When does OBC Section 3.13 apply to rapid transit stations in Ontario?

Section 3.13 applies to rapid transit stations, the enclosed subway and LRT stations serving rail rapid transit systems, covering their platforms, concourses and public circulation areas. It tailors Part 3 fire and life safety rules to the unique conditions of transit stations.

Code reference
Section 3.13 applies to stations serving rapid transit systems and modifies the general Part 3 requirements to suit them, addressing the classification of station spaces, means of egress from platforms and concourses, fire protection systems and related life safety provisions for the below-grade and enclosed conditions typical of subway and light rail stations.
OBC Division B, Section 3.13 (Rapid Transit Stations)

Paraphrased for clarity — open this provision in the BUILDAiD Library for the exact wording.

What this means in practice

Rapid transit stations break the assumptions behind ordinary Part 3 rules: occupant loads surge with train arrivals, much of the building is below grade, and trains themselves are a fire load. Section 3.13 is an Ontario-specific addition reflecting Toronto subway practice; comparable projects elsewhere lean on NFPA 130, and Ontario transit agencies typically apply both frameworks together. On real projects, expect early coordination among the authority having jurisdiction, the transit agency's own design criteria, and fire services. Ancillary spaces like retail concessions still follow regular Part 3 rules.

Plain language

Ontario has special building code rules for subway and light rail stations, because thousands of people move through underground spaces where normal building rules do not quite fit. The rules cover getting people out safely and controlling fire and smoke.

Related questions

What are the egress requirements for transit station platforms in Ontario?What fire safety systems are required in rapid transit stations in Ontario?Do rapid transit stations in Ontario have to be accessible?

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This page is provided for general information. Building code requirements depend on your specific project, occupancy and municipality, and code editions change. Always verify requirements against the current Ontario Building Code and confirm with your local building department.