Max Knoblauch combines ESRI's Story Maps with Yelp and TripAdvisor reviews to create an interactive map of ten subways systems. The map shows the cost per ride and quotes reviews of the pros and cons of the transit system. Among Knoblauch's conclusions: "traveling communities cannot agree whether certain subways are the saving grace or utter downfall of their host city. The reviews serve as a reminder that everything has its ups and downs."
The ten subways systems rated worldwide include New York City's Subway, San Francisco's BART, and Stockholm's Tunnelbana, to name a few, with critics complaining about "rats the size of small dogs" or fans raving about "beautiful works of art."