Ioannina in context: Street-network sprawl trends

Ioannina in context

22.533.5<19751976–19901991–20052006–2020SNDi of street additions
22.533.5<19751976–19901991–20052006–2020SNDi of entire street network
IoanninaEpirus and Western Macedonia (Region)Greece (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ioannina plotted against Epirus and Western Macedonia and Greece. The SNDi of new construction in Ioannina rose steadily, compared to Epirus and Western Macedonia which followed a zig-zag trend with an overall increase and Greece which followed a zig-zag trend with an overall increase. Most recently, Ioannina's incremental SNDi rose from 2.25 to 2.34 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ioannina ranked 1st out of 1 cities in Epirus and Western Macedonia and 5th out of 8 in Greece as of 2020.

New Street Additions (2006–2020)

SNDi value
2.34
Rank in Greece
2nd of 8
Rank in Epirus and Western Macedonia
1st of 1

Entire Network (Aggregate)

SNDi value
2.12
Rank in Greece
5th of 8
Rank in Epirus and Western Macedonia
1st of 1

Rankings go from most connected to most disconnected — rank 1 is the most connected.

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
IoanninaMafuoAssis

In new street additions, Ioannina and Assis both built increasingly disconnected streets over time, while Mafuo built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Ioannina and Assis both became progressively more disconnected, while Mafuo became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Ioannina and Mafuo have been converging in their street-network character since 1975.