Silao in context: Street-network sprawl trends

Silao in context

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
SilaoGuanajuato (Region)Mexico (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Silao plotted against Guanajuato and México. The SNDi of new construction in Silao rose steadily, compared to Guanajuato which followed a zig-zag trend with an overall increase and México which followed a zig-zag trend with an overall increase. Most recently, Silao's incremental SNDi rose from 3.16 to 4.28 between 1991-2005 and 2006-2020. In terms of the aggregate network, Silao ranked 14th out of 15 cities in Guanajuato and 125th out of 182 in México as of 2020.

New Street Additions (2006–2020)

SNDi value
4.28
Rank in México
124th of 182
Rank in Guanajuato
13th of 15

Entire Network (Aggregate)

SNDi value
3.08
Rank in México
125th of 182
Rank in Guanajuato
14th of 15

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

What about similarly populated cities?

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
SilaoBaalbekTrento

While Baalbek and Trento both built increasingly disconnected streets from 1975 through 1976-1990, then improved, Silao built increasingly disconnected streets over time in new street additions. For the full network, Silao and Baalbek both became progressively more disconnected, while Trento grew more disconnected from 1975 through 1991-2005, then improved. Silao and Baalbek have been converging in their street-network character since 1975.