Monrovia in context: Street-network sprawl trends

Monrovia in context

5.66.377.7<19751976–19901991–20052006–2020SNDi of street additions
5.66.377.7<19751976–19901991–20052006–2020SNDi of entire street network
MonroviaMontserrado (Region)Liberia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Monrovia plotted against Montserrado and Liberia. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Monrovia's incremental SNDi rose from 6.46 to 7.5 between 1991-2005 and 2006-2020. In terms of the aggregate network, Monrovia ranked 1st out of 1 cities in Montserrado and 9th out of 9 in Liberia as of 2020.

New Street Additions (2006–2020)

SNDi value
7.5
Rank in Liberia
7th of 9
Rank in Montserrado
1st of 1

Entire Network (Aggregate)

SNDi value
6.34
Rank in Liberia
9th of 9
Rank in Montserrado
1st of 1

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

What about similarly populated cities?

468<19751976–19901991–20052006–2020SNDi of street additions
468<19751976–19901991–20052006–2020SNDi of entire street network
MonroviaEl MansuraHandan

In new street additions, Monrovia and Handan both fluctuated in its street-construction patterns, while El Mansura built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend.