Iligan in context: Street-network sprawl trends
Iligan in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Iligan plotted against Lanao del Norte and Philippines. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Iligan's incremental SNDi rose from 5.53 to 5.84 between 1991-2005 and 2006-2020. In terms of the aggregate network, Iligan ranked 2nd out of 3 cities in Lanao del Norte and 47th out of 114 in Philippines as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 5.84
- Rank in Philippines
- 62nd of 114
- Rank in Lanao del Norte
- 2nd of 3
Entire Network (Aggregate)
- SNDi value
- 4.45
- Rank in Philippines
- 47th of 114
- Rank in Lanao del Norte
- 2nd of 3
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
In new street additions, Iligan built increasingly disconnected streets over time, while Dashiqiao fluctuated in its street-construction patterns and Xiantao built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Iligan and Dashiqiao both became progressively more disconnected, while Xiantao grew more disconnected from 1975 through 1976-1990, then improved. Notably, Iligan had a more connected network than Xiantao in 1975 but the two have since reversed their relative ranking.