How digital billboards are used for emergency communication (DSConnection)
Within minutes, digital billboards communicated this stark message: BREAKING NEWS. 35W BRIDGE COLLAPSED AT DOWNTOWN MINNEAPOLIS. This phenomenon, the immediate delivery of emergency information via digital billboards, was new. […]
digitalsignageconnection.com
Tue, Feb 19, 2019 at 6:26 PM
Tue, Feb 19, 2019 at 6:26 PM