Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Brno delineation based on the combination of urban and suburban incoming and outgoing hourly mobile phone-based commuter patterns. Blue color represents the residential cluster, orange is used for the central cluster, and green highlights the hybrid cluster.
