Harbel City in context: Street-network sprawl trends

Harbel City in context

5678<19751976–19901991–20052006–2020SNDi of street additions
5678<19751976–19901991–20052006–2020SNDi of entire street network
Harbel CityMargibi (Region)Liberia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Harbel City plotted against Margibi and Liberia. The SNDi of new construction in Harbel City peaked in 1976-1990, compared to Margibi which followed a zig-zag trend with an overall increase and Liberia which followed a zig-zag trend with an overall increase. Most recently, Harbel City's incremental SNDi fell from 5.64 to 5.54 between 1991-2005 and 2006-2020. In terms of the aggregate network, Harbel City ranked 2nd out of 2 cities in Margibi and 8th out of 9 in Liberia as of 2020.

New Street Additions (2006–2020)

SNDi value
5.54
Rank in Liberia
3rd of 9
Rank in Margibi
2nd of 2

Entire Network (Aggregate)

SNDi value
5.76
Rank in Liberia
8th of 9
Rank in Margibi
2nd of 2

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
Harbel CityGeneral PicoAnapa

In new street additions, Harbel City built increasingly disconnected streets from 1975 through 1976-1990, then improved, while General Pico fluctuated in its street-construction patterns and Anapa built increasingly disconnected streets over time. Looking at the full network, General Pico and Anapa both became progressively more disconnected, while Harbel City grew more disconnected from 1975 through 1976-1990, then improved.