公共交通機関は思うより便利だし、安全だし、環境にもいい!
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http://www.bts.gov/publications/highlights_of_the_2001_national_household_travel_survey/html/executive_summary.html
http://www2.kankyo.metro.tokyo.jp/jidousya/kotsuryo-taisaku/sustainable-traffic.html
http://www.flickr.com/photos/8731176@N03/4355943040/
http://www.flickr.com/photos/yooperann/4117414704/
http://www.flickr.com/photos/thatkaiperson/4137392189/
http://www.flickr.com/photos/anniemole/27481343/
http://www.flickr.com/photos/senor_codo/530858588/
http://www.flickr.com/photos/swanksalot/437821749/
http://www.flickr.com/photos/8731176@N03/4355943040/
http://www.flickr.com/photos/yooperann/4117414704/
http://www.flickr.com/photos/thatkaiperson/4137392189/
http://www.flickr.com/photos/anniemole/27481343/
http://www.flickr.com/photos/senor_codo/530858588/
http://www.flickr.com/photos/