Culiacán in context: Street-network sprawl trends

Culiacan in context

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
CuliacanSinaloa (Region)Mexico (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Culiacán plotted against Sinaloa and México. The SNDi of new construction in Culiacán rose steadily, compared to Sinaloa which followed a zig-zag trend with an overall increase and México which followed a zig-zag trend with an overall increase. Most recently, Culiacán's incremental SNDi rose from 2.34 to 3.22 between 1991-2005 and 2006-2020. In terms of the aggregate network, Culiacán ranked 4th out of 5 cities in Sinaloa and 46th out of 182 in México as of 2020.

New Street Additions (2006–2020)

SNDi value
3.22
Rank in México
69th of 182
Rank in Sinaloa
5th of 5

Entire Network (Aggregate)

SNDi value
2.27
Rank in México
46th of 182
Rank in Sinaloa
4th of 5

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

What about similarly populated cities?

1.82.43<19751976–19901991–20052006–2020SNDi of street additions
1.82.43<19751976–19901991–20052006–2020SNDi of entire street network
CuliacanZanzibar CityPatiala

In new street additions, Culiacán built increasingly disconnected streets over time, while Zanzibar City built increasingly disconnected streets from 1975 through 1976-1990, then improved and Patiala fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend. Culiacán and Zanzibar City have been converging in their street-network character since 1975.