I am looking for a bit of help: I am looking for an ordinance which would require corrective action when a new structure creates a radio coverage "shadow".

Example: Single site public safety system. A new high-rise is built. There is now a pie wedge shaped area with attenuated coverage in back of it (in relation to the tx site)

Side note, I have taken a look at the excellent examples at http://www.rfsolutions.com/ , but they all seem to address coverage *inside* the building, not in it's radio shadow.