REMplissage
A Montreal multi-modal commute companion that mixes REM, bus, and Bixi with live weather and service alerts into one re-routed trip.
Plateau and South Shore commuters who mix REM, bus, and Bixi for daily trips
- Weather + service alert that re-routes your mixed transit commute automatically
- Bixi station availability forecast vs incoming rain, snow, or heat
- French-first push notifications for REM delays with indoor walking alternatives
- Carpool-cost calculator when storms shut down your usual bike leg
Montreal's transit mix (REM, bus, bike, metro) means a single weather disruption breaks multi-modal commutes; existing apps treat each mode separately.
REM expansion Nov 2025 added 14 stations connecting South Shore to Deux-Montagnes; CBC reported service shutdowns driving commuter frustration — real pain exists, but Google Trends proxy 'meteomedia montreal' is just weather queries, not app demand.REM too unreliable, bring back buses linking South Shore to Montreal, riders say ↗
Tight space: Transit App (Montreal-based, covers bus/metro/train/REM) and the official ARTM Chrono app already handle multi-modal trip planning and Chrono is actively adding Bixi integration — leaving narrow gap for a weather-driven re-router.Transit app for the Montréal area ↗Chrono - Tickets and trips - Apps on Google Play ↗Using Chrono: the good, the bad, and the ugly ↗
Willingness to pay is weak: Transit Royale is ~$4/mo but agencies like TTC are now sponsoring free Royale; Chrono is official/free; a third-party app would struggle to charge against free official + freemium incumbents.What is Transit App: Get Live Schedules, Royale Perks & Free Plan (Review) ↗TTC Riders Are Getting the Transit App's Premium Tier for Free ↗
Strong structural tailwind: REM expansion continues through 2027, multi-modal commuting (REM+bus+Bixi) is becoming the permanent Plateau/South Shore pattern, and Montreal winter weather disruptions are a recurring certainty — not a fad.Measuring the impacts of the Réseau express métropolitain (REM) ↗Réseau express métropolitain - Wikipedia ↗
Buildable with public GTFS feeds for STM/EXO/REM and weather APIs, but real-time service-disruption data is fragmented across agencies and Bixi lacks deep open disruption feeds — engineering effort moderate, not trivial.ARTM - Chrono - EN ↗How to use the REM ↗