MobiSim contains 6 sub models: Population, Housing, Employment, Transportation, Trips and Environment. The model approached the daily mobility by 'm' essential trip motives (m = 3): 'home to/from work', 'shopping', 'trips for educational needs'; into and between 'z' zones (z = 3): City centre, Suburbs and Peripheral zones, for the population of 's' socio-professional categories and age groups.

The employment structure was represented by 's' categories of jobs and 'e' types of business activity (industry, business service, household service). The model approaches the 'd' modes of transport (car, road public transport, rail public transport); and 'l' categories of housing, corresponding to the household's size.