Vogan in context: Street-network sprawl trends

Vogan in context

22.533.5<19751976–19901991–20052006–2020SNDi of street additions
22.533.5<19751976–19901991–20052006–2020SNDi of entire street network
VoganMaritime (Region)Togo (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Vogan plotted against Maritime and Togo. The SNDi of new construction in Vogan was at its lowest in 1991-2005, compared to Maritime which followed a zig-zag trend with an overall increase and Togo which followed a zig-zag trend with an overall increase. Most recently, Vogan's incremental SNDi rose from 1.79 to 2.04 between 1991-2005 and 2006-2020. In terms of the aggregate network, Vogan ranked 5th out of 6 cities in Maritime and 8th out of 17 in Togo as of 2020.

New Street Additions (2006–2020)

SNDi value
2.04
Rank in Togo
3rd of 17
Rank in Maritime
2nd of 6

Entire Network (Aggregate)

SNDi value
2.32
Rank in Togo
8th of 17
Rank in Maritime
5th of 6

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

What about similarly populated cities?

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
VoganJerichoWoluogu

In new street additions, Vogan built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, while Jericho fluctuated in its street-construction patterns and Woluogu built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Vogan became progressively more connected, while Jericho fluctuated in connectivity and Woluogu grew more disconnected from 1975 through 1991-2005, then improved. Notably, Vogan had a more sprawly network than Jericho in 1975 but the two have since reversed their relative ranking.