Dictionary:

canalization

  (kăn'ə-lĭ-zā'shən)

Also from Answers.com... Pregnancy Taking care of yourself with baby on the way.

1. The act or an instance of canalizing.
2. A system of canals.

The formation of canals or channels in tissue.

1. the formation of canals, natural or morbid.
2. the surgical establishment of canals for drainage.

The noun has 2 meanings:

Meaning #1: the production of a canal or a conversion to canals
  Synonym: canalisation

Meaning #2: management through specified channels of communication
  Synonyms: channelization, channelisation, canalisation