Mobile phone and population
Merging statistics and
geospatial information
Mojca Merc
• Legal framework & mobile communications market
• Investigation of the data infrastructure and applied technologies
• Data access, transfer, processing, analysis, dissemination
Grant - merging statistics & geospatial information
• Population distribution
• Statistical units
• Hierarchical grids
INSPIRE
JRC: Estimating population density distribution from network-based mobile phone data
Data content
• Data (1 May – 31 October 2014)
- XY co-ordinates of base stations
- anonymised ID of the mobile device
- exact date/time of event (call, SMS)
Spatial dimension
Spatial dimension
Spatial dimension
0
200
400
600
800
1000
1200
Active
Active min 1h/everyday
Inactive
Spatial dimension
Temporal dimension
Difference between the counts of all events and undoubled events per randomly
selected base station
Temporal dimension
Hourly distribution of events generated by occasional visitors in Ljubljana (%)
Population in space and time
• 77% created 184 events and were active 6 months
• 10% created 75% events or more at one BS
• 40% created 50% events or more at one BS
• 47% created 75% events or more in one „Voronoi municipality“
• 82% created 50% events or more in one „Voronoi municipality“
Population in space and time
Population in space and time
Časovno – prostorske analize
Mobile phone users living in Ljubljana from Monday to Friday and their usual
Saturday and Sunday stays.
Residents creating no events in at least 5 consecutive days
• Examination of official statistics (population, migration, tourism,
ICT)
• Complement or create new/different statistics
• Permanent data access and business solutions
Current work
Thank you!