Mobility Explorer provides an approachable way to query for and immediately visualize Transitland data and Mapzen Mobility APIs. It's built for developers of maps and apps, public policy advocates and planning experts, transit nerds, and anyone who is curious about exploring transit data.
What's an isochrone? The word is a combination of two Greek roots -- 'iso' means equal and 'chrono' means time. So indeed, an isochrone is a structure representing equal time, and we have an API for it.