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Pilsen +1

Pilsen data

The square is a lab

Republic Square is about to be rebuilt, and Pilsen wants to know what that will do to it. So in the European project URBREATH, the city measures it both before and after construction. No other Czech city is part of the project. The Pilsen +1 game counts the very same square, just every minute.

I live on a ledge of the cathedral. Since summer 2025, every now and then the city sets up cameras here for four days and counts everyone who walks by. No pigeons. Not yet, anyway.

What gets measured here

The city's cameras count the square for four days in a row, roughly once a quarter. The top two figures compare summer and autumn 2025. The bottom two are targets the square should hit after the rebuild.

  • How much of the square's traffic is cars

    23.7%July 2025

    12.7%autumn 2025

  • Motor vehicles over four days of counting

    114,96210–13 Jul 2025

    52,56830 Oct – 2 Nov 2025

  • Share of the square used for car parking

    5.2%before the rebuild

    2.2%target after the rebuild

  • Walkways and pedestrian areas

    825 m²before the rebuild

    1,155 m²target after the rebuild

Source: Pilsen Open Data, dataset 220 (URBREATH)

In summer 2025, 73 out of every 100 people crossed the square on foot. I'd count myself among them, I usually can't be bothered to fly.

Why Pilsen, of all places

Pilsen keeps signing up for European projects about data and cities. In three of them, it's the only Czech city.

  • 2024 to 2027

    URBREATH

    A European project on reshaping public space to make it healthier and more pleasant. Nine cities are taking part, and Pilsen is the only Czech one. It picked Republic Square as its test site and is learning from Madrid, Tallinn, Leuven and Cluj.

    Source: CORDIS, project 101139711

  • 2022

    Digital twin

    In the DUET project, Pilsen was one of three European pilots, alongside Flanders and Athens. On a digital copy of the city it tested things like what a bridge closure does to traffic, or where to put solar benches so the sun actually reaches them.

    Source: European Commission, Smart Cities Marketplace

  • since 2023

    CLIMABOROUGH

    The project is looking for ways to bundle energy and transport into a single service. Pilsen has been part of it since 2023 as the only Czech pilot city.

    Source: Smart City Plzeň

  • since 2023

    Junctions in Bory

    In Bory, a district of Pilsen, seven junctions have cameras and LiDAR. A thermal camera and an acoustic sensor keep watch for trams, and an LED strip at the crossing warns pedestrians. Pilsen has been adjusting its traffic lights to live traffic since 2010, and its control system now runs 71 of its 92 junctions this way.

    Sources: fDrive, 22 January 2026, ČT24, 27 September 2010

How the game counts

  1. The camera counts on its own

    The cameras on the square spot pedestrians, bikes and cars right on the device and only send out numbers. No image or video ever leaves the camera or gets stored anywhere.

  2. Every minute

    The city measures for four days once every few months. The game gets fresh numbers every minute, so it can tell a quiet morning from the afternoon rush.

  3. The LIVE tag

    The data doesn't decide how many characters show up in the game, so it stays equally hard for everyone. It only decides which characters get the LIVE tag. Each of them is a person or car the camera counted in the last two minutes.

Republic Square, past minute

Pedestrians
9
Cyclists
0
Cars
42
When you count a pedestrian with a LIVE tag in the game, they walked right past me a moment ago.

Now you count it

Five minutes, one drone and a square at rush hour.

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