I passed the link from that study

http://www.bath.ac.uk/news/articles/...ing110906.html

on to the MBTA (local transit agency) after getting passed by a bus a mite too close this morning. I told them exactly where and when buses are passing me too close, so they could track down the driver if they want. And I encouraged them to educate their drivers regarding proper passing distance and speed. We'll see if anything changes.