Mao in context: Street-network sprawl trends

Mao in context

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
MaoKanem (Region)Chad (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Mao plotted against Kanem and Chad. The SNDi of new construction in Mao followed a zig-zag trend with an overall increase, compared to Kanem which followed a zig-zag trend with an overall decrease and Chad which rose steadily. Most recently, Mao's incremental SNDi fell from 4.32 to 4.16 between 1991-2005 and 2006-2020. In terms of the aggregate network, Mao ranked 1st out of 1 cities in Kanem and 27th out of 31 in Chad as of 2020.

New Street Additions (2006–2020)

SNDi value
4.16
Rank in Chad
23rd of 31
Rank in Kanem
1st of 1

Entire Network (Aggregate)

SNDi value
3.94
Rank in Chad
27th of 31
Rank in Kanem
1st of 1

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
MaoSanta Rosa de CabalMaarrat al-Nu'man

In new street additions, Mao fluctuated in its street-construction patterns, while Santa Rosa de Cabal fluctuated in its street-construction patterns and Maarrat al-Nu'man built increasingly disconnected streets from 1975 through 1976-1990, then improved. Looking at the full network, Santa Rosa de Cabal and Maarrat al-Nu'man both became progressively more disconnected, while Mao became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Mao and Santa Rosa de Cabal have been converging in their street-network character since 1975.