1001 Smart Cities
🚲 Mobility
🇨🇭 Zürich

Zurich Transit Signal Priority (ÖV-Beschleunigung)

Zurich voters rejected a metro in 1973; a 1977 initiative instead funded giving trams and buses priority at traffic lights. The city traffic department now runs about 400 signalised intersections where transit priority is the governing principle. Limits remain: of some 70 junctions re-examined in 2016, about 20 were reprogrammed to match tram and bus arrivals.

Live 📅 since 1977 ✔ Editor-reviewed

✔ Reviewed by the 1001 Smart Cities editorial desk · 🔎 Last verified

🚲 MobilityPublic transportTraffic managementSensors & IoT
Evidence• No measured figure
Scale🏙️ City-wide

📖 Terms in this entry: Adaptive traffic signals · Congestion pricing · ANPR (automatic number-plate recognition)

Sources

↗ Stadt Zürich — Dienstabteilung VerkehrOperator: DAV runs signalling, markings and traffic lights; signal settings account for tram/bus announcements.
↗ Stadtrat Zürich, STRB 273/06.04.2016 (PDF)Official council reply: ~70 intersections examined, ~20 reprogrammed so the green phase matches bus/tram arrival, 15 partially, remainder blocked by competing demands.
↗ espazium — Verkehrssteuerung: die Quadratur des Kreises?Swiss trade press: 'rund 400 Strassenknoten mit über 6000 Lichtsignalen'; over 3,000 sensors sampling every second.
↗ Andrew Nash — Zurich Public Transport PriorityResearcher behind the TRR 2003 study; dates the 1962/1973 metro rejections and the 1977 citizens' initiative.
↗ Yunex Traffic — Around the world: SwitzerlandContractor-stated: signal-stock modernisation since 2019, 200+ controllers by end of 2023.

Continue exploring

Compare this project

🇨🇦 King Street Transit Priority Corridor · Toronto Zurich has run citywide transit priority since 1977 but publishes no effect data; Toronto's smaller corridor posts monthly dashboards. 🇨🇭 VBZ «Self-e» Automated Shuttle Trial · Zürich Another verified project from Zürich. 🇨🇭 ewz Smart Meter Rollout on the City Fibre Network · Zürich Another verified project from Zürich.

Explore the wider context

🚦 Asphalt or algorithms🚌 Public transport guide🏙️ Zürich city profile🚲 Mobility projects
📎 Cite this project

1001 Smart Cities (2026). “Zurich Transit Signal Priority (ÖV-Beschleunigung)” — Zürich, Switzerland. The Smart City Atlas. https://1001smartcities.org/projects/zurich-transit-signal-priority/ (last verified 2026-07-29). Data: CC BY 4.0.

The underlying data is free to reuse with attribution — see the open data page.

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