伦敦 2012.6 Creative Commons Attribution License. You may use for any purpose, but only with attribution / credit to: Karl Fjellstrom, Far East Mobility
伦敦城市交通
单行道 - 聊天交流 - 路侧自行车道 - 无障碍坡道 - 指路标志      
One-way street with two-way bike in city center
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