LEED EBOM Transportation Commuting Survey

Hi Katie - The second approach you mention - position a team at the elevators and sample every fourth person who enters - will get you the highest return, because you are much less likely to have nonrespondents. As long as all building occupants must pass by the survey location and as long as you have a systematic method for selecting respondents that is not impacted by occupants' transportation method, your sample can reasonably be considered random. The major downside of this approach is that it requires a significant amount of staff time. I have seen this approach successfully utilized by other project teams. With the first approach you mention - asking your tenant contacts to distribute the survey to a random group of their employees - you are likely to see a significantly lower response rate than with an in-person survey.