Trapeang Prasat in context: Street-network sprawl trends

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Trapeang Prasat plotted against Otdar Mean Chey and Cambodia. The SNDi of new construction in Trapeang Prasat followed a zig-zag trend with an overall decrease, compared to Otdar Mean Chey which followed a zig-zag trend with an overall decrease and Cambodia which rose steadily. Most recently, Trapeang Prasat's incremental SNDi rose from 1.97 to 3.15 between 1991-2005 and 2006-2020. In terms of the aggregate network, Trapeang Prasat ranked 1st out of 3 cities in Otdar Mean Chey and 2nd out of 12 in Cambodia as of 2020.

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

What about similarly populated cities?

• Tenke, Democratic Republic of the Congo
• Muguo, China
• Tena, Ecuador
• Sètiguiya, Guinea
• Mado Gashi, Kenya
• Balato, Guinea

In new street additions, Trapeang Prasat fluctuated in its street-construction patterns, while Tenke built increasingly disconnected streets from 1975 through 1991-2005, then improved and Sètiguiya built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. For the full network, Trapeang Prasat grew more disconnected from 1975 through 1976-1990, then improved, while Tenke grew more disconnected from 1975 through 1991-2005, then improved and Sètiguiya became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Notably, Trapeang Prasat had a more sprawly network than Tenke in 1975 but the two have since reversed their relative ranking.