Petersburg city brand

full project: http://bit.ly/1nxbrID

Brand strategy: to express the diversity of the city, through the main city function. Petersburg today is "connection", the "bridge":
1. Historically, the city was a "window to Europe", and joined Russia and the West.
2. Actually SPb joined here many shores and islands;
3. It is a cultural center, here there are connected cultures of different countries and peoples, historical heritage and modern architecture.

Bridge, arch is a graphical expression of "connection" and it forms the basis for the logo of the city.
In St. Petersburg this module we can see everywhere: river channels, arches, windows, squares - all forms the urban graphic rhythm.
This sign forms urban pattern.

All together it forms the city's identity: "Join SPB".

Thanks to @chapps for invitation.