Transportation (image) National Geographic Society Caption The transportation component of the Greendex survey measures such variables as ownership of motorized vehicles, size of vehicle and distance driven, use of public transport, air and train travel, riding a bicycle, walking and location of residence relative to primary destination. Chinese consumers receive the highest score, due to widespread use of self-powered transportation and low (but increasing) automobile use. Brazilian and Indian consumers score second- and third-highest Consumers in the United States, where use of public transport is way behind many of the other countries surveyed, rank last. Credit Photo by Paul Chesley Copyright 2008 National Geographic Usage Restrictions IMAGE IS FOR YOUR ONE-TIME EXCLUSIVE USE ONLY. NO SALES, NO TRANSFERS. EMBARGOED: For release noon (U.S. ET) Wednesday, May 7, 2008 IMAGES MAY ONLY BE USED BETWEEN May 7, 2008-Aug 4, 2008 IN CONNECTION WITH THE NATIONAL GEOGRAPHIC/GLOBESCAN GREENDEX STORY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.