Stara Zagora in context: Street-network sprawl trends

Stara Zagora in context

1.82.433.6<19751976–19901991–20052006–2020SNDi of street additions
1.82.433.6<19751976–19901991–20052006–2020SNDi of entire street network
Stara ZagoraBulgaria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Stara Zagora plotted against Bulgaria. The SNDi of new construction in Stara Zagora was at its lowest in 1976-1990, while Bulgaria rose steadily. Most recently, Stara Zagora's incremental SNDi rose from 2.18 to 3.35 between 1991-2005 and 2006-2020. In terms of the aggregate network, Stara Zagora ranked 4th out of 6 in Bulgaria as of 2020.

New Street Additions (2006–2020)

SNDi value
3.35
Rank in Bulgaria
3rd of 6

Entire Network (Aggregate)

SNDi value
1.99
Rank in Bulgaria
4th of 6

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
Stara ZagoraBlanchardstownBalua

In new street additions, Stara Zagora built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Blanchardstown built increasingly disconnected streets from 1975 through 1991-2005, then improved and Balua built increasingly disconnected streets over time. For the full network, Stara Zagora became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards, while Blanchardstown grew more disconnected from 1975 through 1991-2005, then improved and Balua became progressively more disconnected. Stara Zagora and Balua have been growing further apart in their street-network character since 1975.