The following points are open to preliminary debate
1.The GMP’s territorial expansion grid is based on clusters of themed Sims. This roughly means that a single Sim’s theme must be coherent with neighbouring Sims’ themes. GMP’s grid includes in a coherent way theme proposals from RA/citizens and regulates connections between different clusters.
2.The GMP defines sustainable densities for Sims. This roughly means that single plot owners should have prims enough available to build their stuff and to bring in their furniture, vendors etc. Balance between public and private use can be defined either at Sim or Cluster level.
3.The GMP defines population/activities growth goals for clusters/and related Sims based on rough strategic planning. This means it’s highly advisable to have clear in mind the “cluster concept†(=cluster expansion goals + theme + activities/functions to develop).