M'banza Congo in context: Street-network sprawl trends

M'banza Congo in context

2.73.64.55.4<19751976–19901991–20052006–2020SNDi of street additions
2.73.64.55.4<19751976–19901991–20052006–2020SNDi of entire street network
M'banza CongoZaire (Region)Angola (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with M'banza Congo plotted against Zaire and Angola. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, M'banza Congo's incremental SNDi rose from 5.16 to 5.59 between 1991-2005 and 2006-2020. In terms of the aggregate network, M'banza Congo ranked 4th out of 4 cities in Zaire and 54th out of 56 in Angola as of 2020.

New Street Additions (2006–2020)

SNDi value
5.59
Rank in Angola
50th of 56
Rank in Zaire
4th of 4

Entire Network (Aggregate)

SNDi value
5.07
Rank in Angola
54th of 56
Rank in Zaire
4th of 4

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

What about similarly populated cities?

123456<19751976–19901991–20052006–2020SNDi of street additions
123456<19751976–19901991–20052006–2020SNDi of entire street network
M'banza CongoMatalaYushu

In new street additions, M'banza Congo built increasingly disconnected streets over time, while Matala fluctuated in its street-construction patterns and Yushu built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, M'banza Congo became progressively more disconnected, while Matala became progressively more connected and Yushu fluctuated in connectivity. M'banza Congo and Matala have been growing further apart in their street-network character since 1975.