Through multi-agent modeling of cities systems evolution, geographers and computer scientists are tackling questions like:

• What makes us think of systems of cities as complex systems ?

• To what extents are they self-organised, can they be controlled ?

• Which cities will rise or decline during the next decades ?

• Can cities escape from general trends through clever governance ?
  

• Are global cities an innovation of the 20th century ?

• What is comparable in the evolution of cities in countries as different as United States and South-Africa ?

The SIMPOP platform is a geosimulation tool for exploring the future of cities and reconstructing their past dynamics.