Audra Oliver Hit the nail.
As an Architect and Museum Designer that is where I always start.
William M. Greaves AIA, NCARB
Principal
Architects iN Design
http://www.architectsindesign.com[log in to unmask]
1(757) 478-6489 PHONE
1(757) 496-6489 FAX/PHONE
Two quick thoughts - Your state highway patrol or motor vehicles or
highway division or maybe your local planning commission might have
specs
on this. Another thought - bus manufacturers or bus companies or your
local transit company (if you're big enough to have one that runs large
busses) could provide you with the info.
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