Uduma in context: Street-network sprawl trends

Uduma 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
UdumaEnugu (Region)Nigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Uduma plotted against Enugu and Nigeria. The SNDi of new construction in Uduma rose steadily, compared to Enugu which rose steadily and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Uduma's incremental SNDi rose from 3.52 to 3.62 between 1991-2005 and 2006-2020. In terms of the aggregate network, Uduma ranked 3rd out of 11 cities in Enugu and 236th out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
3.62
Rank in Nigeria
154th of 422
Rank in Enugu
2nd of 11

Entire Network (Aggregate)

SNDi value
3.38
Rank in Nigeria
236th of 422
Rank in Enugu
3rd of 11

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

What about similarly populated cities?

1.42.12.83.5<19751976–19901991–20052006–2020SNDi of street additions
1.42.12.83.5<19751976–19901991–20052006–2020SNDi of entire street network
UdumaSzolohegyBetou

In new street additions, Uduma and Szőlőhegy both built increasingly disconnected streets over time, while Bétou fluctuated in its street-construction patterns. For the full network, Uduma and Szőlőhegy both became progressively more disconnected, while Bétou became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Uduma and Szőlőhegy have been growing further apart in their street-network character since 1975.