Phnom Penh in context: Street-network sprawl trends

Phnom Penh in context

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
Phnom PenhCambodia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Phnom Penh plotted against Cambodia. Both Phnom Penh and Cambodia follow the same trend. Most recently, Phnom Penh's incremental SNDi rose from 4.01 to 4.31 between 1991-2005 and 2006-2020. In terms of the aggregate network, Phnom Penh ranked 7th out of 12 in Cambodia as of 2020.

New Street Additions (2006–2020)

SNDi value
4.31
Rank in Cambodia
6th of 12

Entire Network (Aggregate)

SNDi value
3.94
Rank in Cambodia
7th of 12

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
Phnom PenhLomeBaku

In new street additions, Phnom Penh built increasingly disconnected streets over time, while Lomé fluctuated in its street-construction patterns and Baku built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Phnom Penh and Baku both became progressively more disconnected, while Lomé fluctuated in connectivity. Phnom Penh and Lomé have been growing further apart in their street-network character since 1975.