Sitiawan in context: Street-network sprawl trends

Sitiawan in context

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
SitiawanPerak (Region)Malaysia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Sitiawan plotted against Perak and Malaysia. While Perak and Malaysia both rose steadily, Sitiawan's new street additions rose steadily. Most recently, Sitiawan's incremental SNDi rose from 2.84 to 3.29 between 1991-2005 and 2006-2020. In terms of the aggregate network, Sitiawan ranked 1st out of 5 cities in Perak and 1st out of 43 in Malaysia as of 2020.

New Street Additions (2006–2020)

SNDi value
3.29
Rank in Malaysia
1st of 43
Rank in Perak
1st of 5

Entire Network (Aggregate)

SNDi value
2.68
Rank in Malaysia
1st of 43
Rank in Perak
1st of 5

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

What about similarly populated cities?

2.73.64.55.4<19751976–19901991–20052006–2020SNDi of street additions
2.73.64.55.4<19751976–19901991–20052006–2020SNDi of entire street network
SitiawanZitacuaroOmu Aran

In new street additions, Sitiawan and Zitácuaro both built increasingly disconnected streets over time, while Omu Aran built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend. Sitiawan and Zitácuaro have been growing further apart in their street-network character since 1975.