Catarman in context: Street-network sprawl trends

Catarman in context

345678<19751976–19901991–20052006–2020SNDi of street additions
345678<19751976–19901991–20052006–2020SNDi of entire street network
CatarmanNorthern Samar (Region)Philippines (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Catarman plotted against Northern Samar and Philippines. The SNDi of new construction in Catarman peaked in 1991-2005, compared to Northern Samar which peaked in 1976-1990 and Philippines which rose steadily. Most recently, Catarman's incremental SNDi fell from 6.03 to 5.16 between 1991-2005 and 2006-2020. In terms of the aggregate network, Catarman ranked 1st out of 1 cities in Northern Samar and 39th out of 114 in Philippines as of 2020.

New Street Additions (2006–2020)

SNDi value
5.16
Rank in Philippines
32nd of 114
Rank in Northern Samar
1st of 1

Entire Network (Aggregate)

SNDi value
4.28
Rank in Philippines
39th of 114
Rank in Northern Samar
1st of 1

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
CatarmanMachhlishahrHuachuan

In new street additions, Catarman built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Machhlishahr fluctuated in its street-construction patterns and Huachuan built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Catarman became progressively more disconnected, while Machhlishahr became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards and Huachuan grew more disconnected from 1975 through 1991-2005, then improved. Catarman and Machhlishahr have been converging in their street-network character since 1975.