Project Sidewalk: A Web-based Crowdsourcing Tool for Collecting Sidewalk Accessibility Data At Scale. - Manaswi Saha; Michael Saugstad; Hanuma Teja Maddali; Aileen Zeng; Ryan Holland; Steven Bower; Aditya Dash; Sage Chen; Anthony Li; Kotaro Hara; Jon Froehlich (CHI, 2019)