Project Sidewalk: Mapping Accessibility Through Google Street View

Date/Time: May 15, 2018 12:30pm to 1:00pm

Location: Webinar

Description: Presented by TransCen, Inc. and the Mid-Atlantic ADA Center

This is a 30 minute session.

Google Maps, Waze, and Yelp have transformed the way people travel and access information about the physical world. While these systems contain terabytes of data about roads and points of interest (POIs), their information about physical accessibility is commensurately poor. New websites such as AXSmap(link is external), WheelMap(link is external), and AccessTogether(link is external) aim to address this problem by collecting location-based accessibility information provided by volunteers (i.e., crowdsourcing). While these efforts are important and commendable, their value propositions are intrinsically tied to the amount and quality of provided data--and prior work has found that they suffer from serious data sparseness issues. In contrast, a team from the University of Maryland and the University of Washington is exploring a complementary approach called Project Sidewalk(link is external) where volunteer users *virtually* walk through cities in Google Street View to label and assess sidewalk accessibility--a bit like a first-person video game. So, rather than pulling solely from a local population, the potential pool of users scales to anyone with an Internet connection and a web browser. Since Project Sidewalk's beta launch in Washington DC in Fall 2016, over 3,000 users have contributed 180,000 accessibility labels across 1,075 miles of DC streets, check out preliminary results(link is external). The collected data is shared with city governments and used to develop new accessibility-friendly mapping tools (e.g., route planners for people in wheelchairs, new types of map visualizations of access), to train machine learning algorithms to automatically assess accessibility, and to create better transparency about accessible infrastructure (imagine a WalkScore(link is external) for sidewalk accessibility!).

Presenter: Jon Froehlich is an Associate Professor in the Paul G. Allen School of Computer Science and Engineering at the University of Washington

Registration

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