Mount Hagen in context: Street-network sprawl trends

Mount Hagen in context

6789<19751976–19901991–20052006–2020SNDi of street additions
6789<19751976–19901991–20052006–2020SNDi of entire street network
Mount HagenWestern Highlands (Region)Papua New Guinea (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Mount Hagen plotted against Western Highlands and Papua New Guinea. While Western Highlands and Papua New Guinea both rose steadily, Mount Hagen's new street additions rose steadily. Most recently, Mount Hagen's incremental SNDi rose from 8.76 to 9.29 between 1991-2005 and 2006-2020. In terms of the aggregate network, Mount Hagen ranked 1st out of 1 cities in Western Highlands and 7th out of 10 in Papua New Guinea as of 2020.

New Street Additions (2006–2020)

SNDi value
9.29
Rank in Papua New Guinea
7th of 10
Rank in Western Highlands
1st of 1

Entire Network (Aggregate)

SNDi value
6.2
Rank in Papua New Guinea
7th of 10
Rank in Western Highlands
1st of 1

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

What about similarly populated cities?

246810<19751976–19901991–20052006–2020SNDi of street additions
246810<19751976–19901991–20052006–2020SNDi of entire street network
Mount HagenTuxtepecDera Allah Yar

In new street additions, Mount Hagen and Tuxtepec both built increasingly disconnected streets over time, while Dera Allah Yar built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. For the full network, Mount Hagen and Tuxtepec both became progressively more disconnected, while Dera Allah Yar became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Mount Hagen and Dera Allah Yar have been growing further apart in their street-network character since 1975.