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Welcome to Imprint

We aim to accelerate crowdsourced streetscape data collection to understand how people perceive accessibility, obstructions, and walkability in urban environments.

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All Areas at a glance

Select a highlighted city on the map above to filter.

How contributing works

See what one sidewalk takes

Scroll to watch a photo get annotated from start to finish, with the same steps and buttons you will use.

  1. Say what blocks your way. Say if there is a sidewalk or only a path. Then open a box we found and say if it is on the sidewalk or the path people walk on, then if it obstructs your path. If so, rate its severity from 1 to 5.
  2. Answer every suggestion. Go through the rest the same way. If an object is off the sidewalk or not an obstruction, click No. If a box does not seem to be a real object, mark it Not an object.
  3. Draw the objects we missed. Drag a box around any object on the sidewalk we missed, pick its category, and answer both questions.
  4. Rate the sidewalk. Six quick questions about the sidewalk nearest you: its width, how obstructed it is, how even it is, its surface, and whether anything separates it from the road.
  5. On to the next sidewalk. Once every object is answered, move to the next photo. You can pause and stop your session any time.

Help map the sidewalks you walk

A session takes a few minutes, and you choose how many photos to do.