Tapachula in context: Street-network sprawl trends

Tapachula in context

2.83.54.24.9<19751976–19901991–20052006–2020SNDi of street additions
2.83.54.24.9<19751976–19901991–20052006–2020SNDi of entire street network
TapachulaChiapas (Region)Mexico (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tapachula plotted against Chiapas and México. The SNDi of new construction in Tapachula peaked in 1991-2005, compared to Chiapas which rose steadily and México which followed a zig-zag trend with an overall increase. Most recently, Tapachula's incremental SNDi fell from 4.3 to 3.83 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tapachula ranked 6th out of 6 cities in Chiapas and 144th out of 182 in México as of 2020.

New Street Additions (2006–2020)

SNDi value
3.83
Rank in México
102nd of 182
Rank in Chiapas
2nd of 6

Entire Network (Aggregate)

SNDi value
3.66
Rank in México
144th of 182
Rank in Chiapas
6th of 6

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

What about similarly populated cities?

34567<19751976–19901991–20052006–2020SNDi of street additions
34567<19751976–19901991–20052006–2020SNDi of entire street network
TapachulaSariShahrisabz

Tapachula, Sari, and Shahrisabz all built increasingly disconnected streets from 1975 through 1991-2005, then improved in new street construction. The same pattern holds for the full street network. Notably, Tapachula had a more connected network than Shahrisabz in 1975 but the two have since reversed their relative ranking.