Orerokpe in context: Street-network sprawl trends

Orerokpe in context

33.64.24.8<19751976–19901991–20052006–2020SNDi of street additions
33.64.24.8<19751976–19901991–20052006–2020SNDi of entire street network
OrerokpeDelta (Region)Nigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Orerokpe plotted against Delta and Nigeria. The SNDi of new construction in Orerokpe rose steadily, compared to Delta which rose steadily and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Orerokpe's incremental SNDi rose from 3.86 to 5.1 between 1991-2005 and 2006-2020. In terms of the aggregate network, Orerokpe ranked 9th out of 20 cities in Delta and 260th out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
5.1
Rank in Nigeria
280th of 422
Rank in Delta
11th of 20

Entire Network (Aggregate)

SNDi value
3.57
Rank in Nigeria
260th of 422
Rank in Delta
9th of 20

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

What about similarly populated cities?

234567<19751976–19901991–20052006–2020SNDi of street additions
234567<19751976–19901991–20052006–2020SNDi of entire street network
OrerokpeColonia Santa TeresaDongtou

In new street additions, Orerokpe built increasingly disconnected streets over time, while Colonia Santa Teresa built increasingly disconnected streets from 1975 through 1976-1990, then improved and Dongtou fluctuated in its street-construction patterns. Looking at the full network, Colonia Santa Teresa and Dongtou both grew more disconnected from 1975 through 1976-1990, then improved, while Orerokpe became progressively more disconnected. Orerokpe and Dongtou have been growing further apart in their street-network character since 1975.