Sihanoukville in context: Street-network sprawl trends

Sihanoukville in context

3.63.94.24.5<19751976–19901991–20052006–2020SNDi of street additions
3.63.94.24.5<19751976–19901991–20052006–2020SNDi of entire street network
SihanoukvilleKrong Preah Sihanouk (Region)Cambodia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Sihanoukville plotted against Krong Preah Sihanouk and Cambodia. The SNDi of new construction in Sihanoukville was at its lowest in 1976-1990, compared to Krong Preah Sihanouk which was at its lowest in 1976-1990 and Cambodia which rose steadily. Most recently, Sihanoukville's incremental SNDi rose from 4.1 to 4.47 between 1991-2005 and 2006-2020. In terms of the aggregate network, Sihanoukville ranked 1st out of 1 cities in Krong Preah Sihanouk and 8th out of 12 in Cambodia as of 2020.

New Street Additions (2006–2020)

SNDi value
4.47
Rank in Cambodia
7th of 12
Rank in Krong Preah Sihanouk
1st of 1

Entire Network (Aggregate)

SNDi value
4.11
Rank in Cambodia
8th of 12
Rank in Krong Preah Sihanouk
1st of 1

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

What about similarly populated cities?

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
SihanoukvilleTecomanGedeb

In new street additions, Sihanoukville built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Tecoman fluctuated in its street-construction patterns and Gedeb built increasingly disconnected streets over time. Looking at the full network, Tecoman and Gedeb both became progressively more disconnected, while Sihanoukville became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards.