Dumaguete 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 Dumaguete plotted against Negros Oriental and Philippines. The SNDi of new construction in Dumaguete was at its lowest in 1991-2005, compared to Negros Oriental which was at its lowest in 1991-2005 and Philippines which rose steadily. Most recently, Dumaguete's incremental SNDi rose from 4.79 to 5.3 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dumaguete ranked 1st out of 1 cities in Negros Oriental and 68th out of 114 in Philippines as of 2020.

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

What about similarly populated cities?

• Pingyao, China
• Haleva, Belarus
• Pyay, Myanmar
• Phra Nakhon Si Ayutthaya, Thailand
• Kashan, Iran
• Rio das Ostras, Brazil

While Pingyao and Phra Nakhon Si Ayutthaya both built increasingly disconnected streets over time, Dumaguete built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns in new street additions. Looking at the full network, Pingyao and Phra Nakhon Si Ayutthaya both became progressively more disconnected, while Dumaguete became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Notably, Dumaguete had a more sprawly network than Phra Nakhon Si Ayutthaya in 1975 but the two have since reversed their relative ranking.