The neighbourhoods in the former Soviet Union were after the second World War often planned according to the self-consistent microrayon concept similar to Clarence Perry's neighbourhood unit. Each residential district was based on the walkable community centre in the middle whereas the area itself was surrounded by arterial streets as the main transport routes with basic services.
However, the recent situation of many of those neighbourhoods is rather dim - the bad condition of housing, faded public spaces and unorganised greenery systems are between the most crucial issues.