Guidan Roumdji in context: Street-network sprawl trends

Guidan Roumdji in context

1.82.73.6<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.6<19751976–19901991–20052006–2020SNDi of entire street network
Guidan RoumdjiMaradi (Region)Niger (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Guidan Roumdji plotted against Maradi and Niger. The SNDi of new construction in Guidan Roumdji was at its lowest in 1976-1990, compared to Maradi which followed a zig-zag trend with an overall increase and Niger which rose steadily. Most recently, Guidan Roumdji's incremental SNDi rose from 1.79 to 4.03 between 1991-2005 and 2006-2020. In terms of the aggregate network, Guidan Roumdji ranked 6th out of 7 cities in Maradi and 23rd out of 33 in Niger as of 2020.

New Street Additions (2006–2020)

SNDi value
4.03
Rank in Niger
26th of 33
Rank in Maradi
7th of 7

Entire Network (Aggregate)

SNDi value
2.07
Rank in Niger
23rd of 33
Rank in Maradi
6th of 7

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

What about similarly populated cities?

246810<19751976–19901991–20052006–2020SNDi of street additions
246810<19751976–19901991–20052006–2020SNDi of entire street network
Guidan RoumdjiPena NegraAnaturishi uzbok

In new street additions, Guidan Roumdji built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Peña Negra built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns and Анатуриши узбок built increasingly disconnected streets over time. For the full network, Guidan Roumdji became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards, while Peña Negra became progressively more connected and Анатуриши узбок became progressively more disconnected. Guidan Roumdji and Peña Negra have been converging in their street-network character since 1975.