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The survey is now closed. You can still view the map, but you will not be able to add comments.
Use the buttons below to draw on the map. Submit as many comments as you like.
Tell us what's missing. Tap one of the buttons, draw on the map, and then answer the questions that appear.
All done? Simply close your browser when you're finished leaving comments.
This map does not support Internet Explorer. Try one of the browsers below.
该地图与 Internet Explorer 不兼容。 请使用其他浏览器。
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This map shows three networks: pedestrian, bicycle, or transit. You can turn each layer on or off by clicking on their names in the legend. Click on a feature (a thick line or point on the map) to see more information about it, or leave a comment.
You can also add comments anywhere on the map. To do so, use the drawing buttons. Press the Escape key or click Cancel to erase your drawing.