Building access control system with spatial modeling

An access control system comprising:

• one or more processors;
• and
• one or more computer-readable storage media having instructions stored thereon that, when executed by the one or more processors, cause the one or more processors to implement operations comprising:
• maintaining a database of access control event data generated by a plurality of access control devices installed in a building;
• iterating through the access control event data in order to generate a connectivity model for the building by, for each iteration:
• identifying an interaction between a user and an access control device for a first door in the building that occurs at a first time;
• identifying an interaction between the user and an access control device for a second door in the building that occurs at a second time;
• determining if a difference between the first time and the second time is less than a threshold period of time;
• determining if the connectivity model includes a connection between the first door and the second door responsive to a determination that the difference is less than the threshold;
• creating the connection between the first door and the second door responsive to a determination that the connectivity model does not include the connection;
• and
• updating a weight associated with the connection responsive to a determination that the connectivity model does include the connection.