The LEED AP Operations + Maintenance (LEED AP O+M) V4.1 guidelines for the Location and Transportation Credit, Alternative Transportation, suggest conducting a survey to determine the transportation patterns of occupants of a typical office building. The survey should request data from a period of five days. This duration is considered sufficient to provide a representative sample of the typical commuting patterns and behaviors of the building occupants1.
References:
* Alternative transportation | U.S. Green Building Council