Tunja in context: Street-network sprawl trends

Tunja 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
TunjaBoyaca (Region)Colombia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tunja plotted against Boyacá and Colombia. The SNDi of new construction in Tunja rose steadily, compared to Boyacá which followed a zig-zag trend with an overall increase and Colombia which followed a zig-zag trend with an overall increase. Most recently, Tunja's incremental SNDi rose from 3.13 to 3.24 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tunja ranked 3rd out of 4 cities in Boyacá and 40th out of 83 in Colombia as of 2020.

New Street Additions (2006–2020)

SNDi value
3.24
Rank in Colombia
40th of 83
Rank in Boyacá
3rd of 4

Entire Network (Aggregate)

SNDi value
2.75
Rank in Colombia
40th of 83
Rank in Boyacá
3rd of 4

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
TunjaDembaBandundu

In new street additions, Tunja and Demba both built increasingly disconnected streets over time, while Bandundu built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Tunja and Bandundu both became progressively more disconnected, while Demba became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards.