Jahun in context: Street-network sprawl trends

Jahun in context

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
JahunJigawa (Region)Nigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Jahun plotted against Jigawa and Nigeria. While Jigawa and Nigeria both followed a zig-zag trend with an overall increase, Jahun's new street additions followed a zig-zag trend with an overall increase. Most recently, Jahun's incremental SNDi rose from 1.21 to 1.54 between 1991-2005 and 2006-2020. In terms of the aggregate network, Jahun ranked 1st out of 11 cities in Jigawa and 17th out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
1.54
Rank in Nigeria
25th of 422
Rank in Jigawa
2nd of 11

Entire Network (Aggregate)

SNDi value
1.28
Rank in Nigeria
17th of 422
Rank in Jigawa
1st of 11

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

What about similarly populated cities?

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
JahunPeddapalliTesistan

In new street additions, Jahun fluctuated in its street-construction patterns, while Peddapalli built increasingly disconnected streets from 1975 through 1991-2005, then improved and Tesistán built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend. Jahun and Peddapalli have been growing further apart in their street-network character since 1975.