中文摘要：

目的了解中国12城市中心城区自行车道配备、维护情况及其与城市经济水平、区域居住密度、街道繁荣程度问的关联。方法以北京、天津、上海、青岛、杭州、绍兴、苏州、南通、镇江、成都、西宁、哈尔滨12个城市的54个中心城区333个调查点内所有的道路为调查对象，采用观察法了解道路两侧自行车道的配备及维护情况。结果共纳入分析4202条路段，其中有32．6％的路段配有自行车道。12城市中，配有自行车道比例最高的是南通（46.5％），其次是天津（39．6％）和上海（39．4％），西宁（2．0％）、青岛（5.4％）和哈尔滨（27．1％）配有自行车道的道路比例相对较低。高经济水平城市的自行车道配备相对完善，但自行车道宽度及隔离状况相对较差。高居住密度区域的自行车道配备及维护情况均相对较差。结论我国12城市自行车配备及维护情况具有显著性差异。现有自行车道配备水平仍有改进空间。建议在完善自行车道配备的同时要重视自行车道的隔离方式，并结合城市人口分布及交通需求，合理配备自行车道。

英文摘要：

Objective To explore the condition on bike lanes and the relationship with GDP of the related cities, residential of regions and prosperity of streets in 12 selected cities in China. Methods Eexistence and maintenance of bike lanes were examinedin in all the streets under survey in 333 blocks of 12 cities （Beijing, Tianjin, Shanghai, Qingdao, Hangzhou, Shaoxing, Suzhou, Nantong, Zhenjiang, Chengdu, Xining and Harbin）. Data were collected on GDP of the related cities, together with the sizes of population and proportion of the 333 blocksand the numbers of stores and restaurants in those streets. Results A total of 4 202 streets were included in the study. In the 12 cities, 32.6% of the streets were equipped with bike lanes. Bike-lane-equipmentsseemed better in Nantong （46.5%） , Tianjin （39.6%） and Shanghai （39.4%） , but the scores were lower in Xining （2.0%） , Qingdao （5.4%） , and Harbin （27.1%）. The higher GDP was, the better bike lanes were equipped. In the meantime, the isolation of bike lanes were worse and the streets more crowded. Density of the residential area was negatively correlated with the score on bike lane-equipments. Conclusion Differences of the condition of bike lanes in the 12 cities indicated that improvement should be made on bike lanes. More attention should be paid to those cities with high GDPs and crowded residential regions on setting up the isolated bike lanes and reasonable equipments.