Sectorization is concerned with dividing a large territory into smaller areas, also known as sectors. This process usually simplifies complex problem, leading to easier solution approaches solving the resulting subproblems. Sectors are built several criteria in mind, such equilibrium, compactness, contiguity, and desirability, which vary applications. appears different contexts: sales design, p...

The past four decades have witnessed an explosive growth in the field of networkbased facility location modeling. This is not at all surprising since location policy is one of the most profitable areas of applied systems analysis in regional science and ample theoretical and applied challenges are offered. Location-allocation models seek the location of facilities and/or services (e.g., schools...