Please note: The algorithm descriptions in English have been automatically translated. Errors may have been introduced in this process. For the original descriptions, go to the Dutch version of the Algorithm Register.
Crowd monitoring
- Publication category
- Other algorithms
- Impact assessment
- Field not filled in.
- Status
- In use
General information
Theme
Begin date
Contact information
Link to source registration
Responsible use
Goal and impact
PURPOSE: Crowd management is the monitoring of crowds to then support the actions of the various disciplines based on pre-agreed basic points.
IMPACT: Impact on citizens is small; the algorithm plots where crowds are present and how they develop.
Considerations
Keeping users safe in and manageable public spaces is high priority
Human intervention
The crowd monitor is not leading in making a decision. It is an additional tool during events. It is used in the control room, where police, boas and emergency services are coordinated. The crowd monitor supports making better decisions, for example on the deployment locations of enforcers.
Risk management
Elaboration on impact assessments
IAMA and DPIA will be launched upon further development and structural deployment.
Operations
Data
Addresses and buildings, Large-scale topography, Share mobility, Traffic information, Parking data, Traffic flows from TomTom, Weather information, Crowd information, Event information
Links to data sources
- Basic registration of addresses and buildings (BAG)
- Basic registration of large-scale topography (BGT)
- Share mobility
- Traffic information
- Parking data
- TomTom traffic
- Infoplaza weather information
- Resono pressure information
- Event information
Technical design
The crowd monitor is a dashboard intended to provide insight into crowds in the city. Insight into crowds shows where problems may arise so that involved parties can decide together what, when should be done by whom to keep safe with large groups of people in the city.
The crowd monitor has map views of how busy the city is at that moment. The map combines various data sources, such as traffic data, ov data (from public sources). In addition, location data were collected from mobile apps. The mobile app data were collected by the supplier, which were delivered anonymously to the municipality. As a result, this data is not traceable within the municipality.
The crowd monitor is not leading in making a decision. It is an additional tool during events. It is used in the control room, where police, boas and emergency services are coordinated. The crowd monitor supports making better decisions, for example on the deployment locations of enforcers.
The dashboard is currently deployed during some events in Rotterdam. In the past, these have been the following events:
- Koningsdag 2023
- Marathon 2024
- Marathon 2025
During Kings Day 2023, a link was made with data from social media. The purpose of this was to assess whether any risks were visible with regard to already developing and potential escalations. This link was later abandoned in the further development of the monitor.
External provider
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