Hello Transportation SWATeam,

Per our discussion today, here are a couple of files and links.

1. The most recent version of the Clean Air Cool Planet emissions calculator.
2. Excerpts from the calculator as related to transportation emissions.  Note the tab called “data for average commute” explains the current math for the average commute distance. 
3. 2007 mode-choice survey details: http://www.ihavemiplan.com/results/index.html
4. 2011 mode-choice survey details: https://icap.sustainability.illinois.edu/project-update/mode-shift-update

Both of the mode choice surveys were done in completely different ways and not exactly for the purpose we are using them.  It would probably be good to develop a survey specifically for this calculation purpose that can be administered by the UI in future years.

Thanks,

Morgan