+31 6 19191356 hans@smartposition.nl


Crowd Safety Monitoring, Management & Control

SenseArea, what does it sense?

SenseArea is a service that helpes you to make the right decissions concerning crowd management:

  • It shows the density and spread of the crowd
  • It shows the direction in which the crowd is moving and can predict the density elsewhere as a result
  • It helps you to tag and follow a group within the crowd
  • It can signal you when the crowd exceeds a certain level or enters an certain area

And all of this using the GSM network as its ears and eyes

Application scenario

When organizing large events or when expecting a significant amount of people, knowing where the crowd is and where it is going is the first step in avoiding crowd crises

SenseArea functionality

  • Show the density of people (heatmap)
  • Show a common movement (arrows)
  • Tag and trace a group (dots)
  • and predict movement based on event specific context

How it works

  • SenseArea monitors changes in GSM network usage. Each cell phone is identified by a unique (but anonymous!) identifier
  • Sense Area uses generic or event specific context rules to show density and movement changes
  • No cell phone registration required


  • SenseArea sees individual cell phones, but does not know the phone number or the owner
  • Accuracy relies on the density of cell antennas in the area

Example (security)

  • After the soccer match the supporters are tagged when they leave the stadium
  • A small group leaves the crowd and heads towards the town centre
  • Police / security can monitor their location and send them back to e.g. the railwaystation



Example (open air event)

  • A large open air event expects approx. 7500 people
  • The crowd monitor alarms for a continous growing crowd; at least 12.500
  • Event organiser opens extra gates and informs police of the situation


Example (health risks)


Big crowds in parks or beaches with potential health hazard due to Covid-19

SenseArea Service Offering

  • SenseArea is a growing platform of generic functionality and event-specific plug-ins SenseArea offers:
  • To monitor a specific area during a specific timeframe for you
  • To give you access to the real time SenseArea data and operate the application
  • To add event specific, context specific or area specific rules (gates, temporary roads, scheduled events, …) that will help you to monitor specific needs



Herengracht 456 1017 CA Amsterdam

Hans Uithol

Email: hans@smartposition.nl

Telephone: +31 6 19191356