Lucapa in context: Street-network sprawl trends

Lucapa in context

2.42.83.23.6<19751976–19901991–20052006–2020SNDi of street additions
2.42.83.23.6<19751976–19901991–20052006–2020SNDi of entire street network
LucapaLunda Norte (Region)Angola (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Lucapa plotted against Lunda Norte and Angola. The SNDi of new construction in Lucapa peaked in 1976-1990, compared to Lunda Norte which followed a zig-zag trend with an overall decrease and Angola which rose steadily. Most recently, Lucapa's incremental SNDi fell from 2.82 to 2.26 between 1991-2005 and 2006-2020. In terms of the aggregate network, Lucapa ranked 2nd out of 4 cities in Lunda Norte and 33rd out of 56 in Angola as of 2020.

New Street Additions (2006–2020)

SNDi value
2.26
Rank in Angola
19th of 56
Rank in Lunda Norte
2nd of 4

Entire Network (Aggregate)

SNDi value
2.62
Rank in Angola
33rd of 56
Rank in Lunda Norte
2nd of 4

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

What about similarly populated cities?

481216<19751976–19901991–20052006–2020SNDi of street additions
481216<19751976–19901991–20052006–2020SNDi of entire street network
LucapaTanjung PandanKui Men Jie Dao

In new street additions, Lucapa built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Tanjung Pandan built increasingly disconnected streets over time and 夔门街道 built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. For the full network, Lucapa grew more disconnected from 1975 through 1976-1990, then improved, while Tanjung Pandan became progressively more disconnected and 夔门街道 became progressively more connected. Lucapa and Tanjung Pandan have been growing further apart in their street-network character since 1975.