Tari in context: Street-network sprawl trends

Tari in context

468<19751976–19901991–20052006–2020SNDi of street additions
468<19751976–19901991–20052006–2020SNDi of entire street network
TariHela (Region)Papua New Guinea (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tari plotted against Hela and Papua New Guinea. The SNDi of new construction in Tari was at its lowest in 1976-1990, compared to Hela which followed a zig-zag trend with an overall increase and Papua New Guinea which rose steadily. Most recently, Tari's incremental SNDi rose from 4.59 to 4.96 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tari ranked 1st out of 1 cities in Hela and 3rd out of 10 in Papua New Guinea as of 2020.

New Street Additions (2006–2020)

SNDi value
4.96
Rank in Papua New Guinea
2nd of 10
Rank in Hela
1st of 1

Entire Network (Aggregate)

SNDi value
4.77
Rank in Papua New Guinea
3rd of 10
Rank in Hela
1st of 1

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

What about similarly populated cities?

3.544.55<19751976–19901991–20052006–2020SNDi of street additions
3.544.55<19751976–19901991–20052006–2020SNDi of entire street network
TariNamialoRancho las Perris

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