Background:
A congressional fund raising event took place in downtown Huntsville,
Alabama on October 16th, 2008. President Bush was the scheduled
keynote speaker but a last minute change in plans resulted in
Vice-President Cheney flying in instead. The deployment pattern
of local emergency services during a presidential or vice-presidential
visit is of some interest, especially to those trapped by seemingly
arbitrary street closures well in advance of the visiting
dignitary. Some typical dispositions in various parts of
Huntsville and at varying zoom levels are shown below: