Tijuana in context: Street-network sprawl trends

Tijuana in context

2.73.64.55.4<19751976–19901991–20052006–2020SNDi of street additions
2.73.64.55.4<19751976–19901991–20052006–2020SNDi of entire street network
TijuanaBaja California (Region)Mexico (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tijuana plotted against Baja California and México. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Tijuana's incremental SNDi rose from 4.43 to 5.4 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tijuana ranked 6th out of 7 cities in Baja California and 171st out of 182 in México as of 2020.

New Street Additions (2006–2020)

SNDi value
5.4
Rank in México
162nd of 182
Rank in Baja California
6th of 7

Entire Network (Aggregate)

SNDi value
4.51
Rank in México
171st of 182
Rank in Baja California
6th of 7

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
TijuanaAsuncionPretoria

In new street additions, Tijuana fluctuated in its street-construction patterns, while Asuncion built increasingly disconnected streets over time and Pretoria built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend. Notably, Tijuana had a more sprawly network than Pretoria in 1975 but the two have since reversed their relative ranking.