Burgas in context: Street-network sprawl trends

Burgas in context

1.42.12.83.5<19751976–19901991–20052006–2020SNDi of street additions
1.42.12.83.5<19751976–19901991–20052006–2020SNDi of entire street network
BurgasBulgaria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Burgas plotted against Bulgaria. The SNDi of new construction in Burgas followed a zig-zag trend with an overall increase, while Bulgaria rose steadily. Most recently, Burgas's incremental SNDi fell from 1.72 to 1.55 between 1991-2005 and 2006-2020. In terms of the aggregate network, Burgas ranked 1st out of 6 in Bulgaria as of 2020.

New Street Additions (2006–2020)

SNDi value
1.55
Rank in Bulgaria
1st of 6

Entire Network (Aggregate)

SNDi value
1.39
Rank in Bulgaria
1st of 6

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

What about similarly populated cities?

1.42.12.83.5<19751976–19901991–20052006–2020SNDi of street additions
1.42.12.83.5<19751976–19901991–20052006–2020SNDi of entire street network
BurgasIltifatganjIrba

In new street additions, Burgas fluctuated in its street-construction patterns, while Iltifatganj fluctuated in its street-construction patterns and Irba fluctuated in its street-construction patterns. For the full network, Burgas became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards, while Iltifatganj fluctuated in connectivity and Irba fluctuated in connectivity. Burgas and Iltifatganj have been converging in their street-network character since 1975.