It took me 40 minutes to finally get on a train after Ecobuild 2011 closed its doors on the last day. Train station agents at Custom House station had to perform crowd control duty for safety reasons, but fortunately we attendees were all very civilized. (Photo by Mignon O’Young)

It took me 40 minutes to finally get on a train after Ecobuild 2011 closed its doors on the last day. Train station agents at Custom House station had to perform crowd control duty for safety reasons, but fortunately we attendees were all very civilized. (Photo by Mignon O’Young)

It took me 40 minutes to finally get on a train after Ecobuild 2011 closed its doors on the last day. Train station agents at Custom House station had to perform crowd control duty for safety reasons, but fortunately we attendees were all very civilized. (Photo by Mignon O’Young)