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Separation

Simple Separation (Seccesion)

Definition

The creation of a new municipality through the separation of a part of the territory from one municipality, which continues to exist.

Implication of the change

Before (year t):

  • Municipality A (with id 11) exists as a separate entity with its own name, id, and territory.

After (year t + 1):

  • Municipality B was created by separating a part of the territory from Municipality A, which continues to exist.
  • Municipality B has its own name and id.

Visual overview

The number of municipal units involved is indicated in brackets under each description.

Example

Since 2021, the new municipality (comune in Italy) Misiliscemi (id 081025) was created through the separation of part of the territory from the municipality of Trapani (id 081021), which continues to exist. The municipality Trapani retained both its name and id. The municipality Misiliscemi has a new name and a new id. Case id: The case was registered in the metadata dataset under the id: it-se-2-2020-2021.

Map Plots


Before(left) and After (right)

Before Map

Multiple Separation

Definition

The creation of a new municipality through the separation of a part of the territory from more than one municipality, all of which continue to exist.

Implication of the change

Before (year t):

  • Municipalities A (with id 1) and B (with id 2) exist as separate entities, each with its own name, id, and territory.

After (year t + 1):

  • Municipality C was created by separating a part of the territory from Municipalities A and B, which continue to exist.
  • Municipality C has its own name and id.

Visual overview

The number of municipal units involved is indicated in brackets under each description.

Example

Since 2021, the new municipality (comune in Italy) Mappano (id 001316) was created through the separation of parts of the territory from four existing municipalities: Borgaro Torinese (id 001028), Caselle Torinese (id 001063), Leini (id 001130), and Settimo Torinese (id 001265), all of which continue to exist with their original names and ids. The municipality Mappano has a new name and a new id (source). The case was registered in the metadata dataset under: it-se-1-2017-2018

Plots


Before(left) and After (right)

Before Map

References

  1. By id we mean code identifier of the municipality. ↩