Cases about Smart city Istanbul 7 5 min iTaksi Vienna 10 5 min Project Energie-Optimierung Schlammbehandlung (E_OS) 5 5 min Vienna Vienna`s First Library of Things Vienna 10 13 min Wien gibt Raum (Vienna gives space) New York City 10 3 min HunchLab New York City 6 5 min ShotSpotter Gunshot Location System (GLS)