Monterrey in context: Street-network sprawl trends

Monterrey in context

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
MonterreyNuevo Leon (Region)Mexico (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Monterrey plotted against Nuevo León and México. The SNDi of new construction in Monterrey rose steadily, compared to Nuevo León which rose steadily and México which followed a zig-zag trend with an overall increase. Most recently, Monterrey's incremental SNDi rose from 2.89 to 3.82 between 1991-2005 and 2006-2020. In terms of the aggregate network, Monterrey ranked 4th out of 6 cities in Nuevo León and 79th out of 182 in México as of 2020.

New Street Additions (2006–2020)

SNDi value
3.82
Rank in México
99th of 182
Rank in Nuevo León
5th of 6

Entire Network (Aggregate)

SNDi value
2.66
Rank in México
79th of 182
Rank in Nuevo León
4th of 6

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

What about similarly populated cities?

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
MonterreyKanoSanto Domingo

In new street additions, Monterrey built increasingly disconnected streets over time, while Kano built increasingly disconnected streets from 1975 through 1976-1990, then improved and Santo Domingo fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend. Monterrey and Kano have been growing further apart in their street-network character since 1975.