Port Vila in context: Street-network sprawl trends

Port Vila in context

46810<19751976–19901991–20052006–2020SNDi of street additions
46810<19751976–19901991–20052006–2020SNDi of entire street network
Port VilaShefa (Region)Vanuatu (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Port Vila plotted against Shefa and Vanuatu. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Port Vila's incremental SNDi fell from 4.94 to 4.27 between 1991-2005 and 2006-2020. In terms of the aggregate network, Port Vila ranked 1st out of 1 cities in Shefa and 1st out of 1 in Vanuatu as of 2020.

New Street Additions (2006–2020)

SNDi value
4.27
Rank in Vanuatu
1st of 1
Rank in Shefa
1st of 1

Entire Network (Aggregate)

SNDi value
5.0
Rank in Vanuatu
1st of 1
Rank in Shefa
1st of 1

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

What about similarly populated cities?

0369<19751976–19901991–20052006–2020SNDi of street additions
0369<19751976–19901991–20052006–2020SNDi of entire street network
Port VilaAlcoi / AlcoyBansgaon

In new street additions, Port Vila and Alcoi / Alcoy both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Bansgaon fluctuated in street-construction patterns. For the full network, Port Vila and Bansgaon both grew more disconnected from 1975 through 1976-1990, then improved, while Alcoi / Alcoy became progressively more disconnected. Port Vila and Bansgaon have been converging in their street-network character since 1975.