Street signs are often taken for granted, but they are a vital part of the city and its identity. I therefor suggest a re-branding of street signs, so they represent the values & visions of the city. One could make symbolic stickers as a prototype
Some of my favorite Danish design is the street signs in Gentofte (suburb of Copenhagen), where a small, red heart has been designed as the "dot over the i" and added to the font at all the street signs. This subtle, minimal design builds local identify in a very stylish and humane way.
The idea would could easily be picked up by other cities -and build upon it. An entire city or an area of a city could for instance decide on a small symbol which will represent and unite them (ex. a green leaf, if the city wants to become more environmentally sustainable)
Changing all street signs could become quite expensive - but one could prototype the concept by adding stickers to street signs - at the top of the "i"
One could also imagine that a new sticker is created every month - by the local community. The design and the decision making process could become an inclusive process, which helps build local identity