What constitutes a "School Zone?"

Today is the funeral for Melissa Tindell, a 13 year-old who died trying to save a kitten at a bus stop in Panama City, Florida. See:

http://www.panhandleparade.com/index.php/mbb/article/keep_kids_alive_drive_25/11115/
http://www.panhandleparade.com/index.php/mbb/article/parents_remember_daughter_killed_at_bus_stop/mbb7711134/
http://www.wjhg.com/home/headlines/31237669.html

One thought that crosses my mind as I consider the Melissa's death is that we most often think of school zones as encompassing areas immediately around a school itself. Bus stops for pick-up and drop-off of children challenge us to extend our definition of what constitutes a school zone. Shouldn't we also consider that any school bus stop also be included as a "School Zone," giving it a specific designation when it comes to speed and all around driver attention, at the very least during pick-up and drop-off hours? Your comments are welcome.

Tom
http://www.keepkidsalivedrive25.org/