---
title: "O-Train Line 1 starts at noon on Sunday, November 15, for software updates"
description: "O-Train Line 1 will not run from 8 am to noon on Sunday, November 15. Replacement buses cover the full route while the City installs software needed for the East Extension."
canonical_url: "https://voche.me/on/ottawa-2026/news/o-train-line-1-sunday-service-disruption-november-15-2026"
last_updated: "2026-11-14T03:24:11.373Z"
---

O-Train Line 1 will not run from 8 am to noon this Sunday, November 15. The City of Ottawa says R1 replacement buses will cover the full Tunney's Pasture to Blair corridor during that four-hour window, while crews install software updates needed for the Line 1 East Extension.

The City announced the change on November 12, 2026. Its release says: "This temporary service adjustment is required to safely implement software updates needed for the Line 1 East Extension."

## What runs instead

R1 replacement buses cover the full stretch between Tunney's Pasture and Blair from 8 am to noon.

Two shuttle bus routes handle shorter sections of the line during the same window: one runs between St-Laurent and Cyrville stations, and a second runs between Lees Station and Mackenzie King Bridge.

OC Transpo staff will be stationed at key transit hubs to help riders find their bus connections during the closure.

## Why the closure is needed

The City says these software updates are a step toward the next phase of East Extension testing. The East Extension is a planned expansion of Line 1 beyond Blair station, its current eastern end. The City's November 12 announcement describes the updates as "a key milestone in preparing for the next stage of East Extension testing," which will involve Pre-Trial and Trial Running phases.

## What comes next

Full Line 1 service between Tunney's Pasture and Blair resumes at noon on November 15. The closure is a one-time event specific to that morning. The City has not announced a date for the East Extension to open for regular service.

If you ride O-Train Line 1 on Sunday morning before noon, check octranspo.com or call 613-560-5000 for bus stop locations and timing. The Travel Planner at plan.octranspo.com shows updated routes for November 15. After noon, all Line 1 stations return to normal O-Train service.

## Sitemap

See the full [sitemap](/on/ottawa-2026/sitemap.md) for all pages.