There are no hard rules on this that I'm aware of—common sense rules the day. I think you just need to come up with a reasonable method and be prepared to explain it.
If it were a renovation or expansion, or if there is a similar existing project in the neighborhood, it seems like some kind of survey or head-counting could be done at minimal cost.
Do you have concerns about getting an number that's too high, and so having to provide a ton of bike racks, or something like that?
Jean Marais
b.i.g. Bechtold DesignBuilder Expert832 thumbs up
March 3, 2010 - 3:37 am
The same thing, by the way, has MASSIVE impact on the whole building energy simulation's occupancy schedules, which in my opinion could sway the credits in EA by up to 20%.