Trends
9.27
SNDi (2020)1,400 km
Total street network1975–2020
Analysis periodDisconnectedness burden of street construction in French Polynesia
▸ Hover over bars to see values
The chart above shows, for each construction period in French Polynesia, the SNDi of new street additions (bar height) and the volume added (bar width), so that bar area reflects the total disconnectedness burden of that period's construction. The 1975 period contributed the greatest disconnectedness burden, with 830 km of street added at an SNDi of 8.88. Overall, the SNDi of new street additions in French Polynesia followed a zig-zag trend with an overall increase.
How have French Polynesia's street networks changed over time?
Most recent snapshot
Taking into account the entire (i.e. aggregate) street network in French Polynesia as of 2020, the overall level of street-network sprawl is 9.27, which is very sprawly.
Trends in street network construction
The SNDis of street construction for the respective time periods are 8.88, 9.94, 8.67 and 10.78. Disconnectivity in street construction in French Polynesia follows a zig-zag trend. In 1991-2005, street construction was most disconnected, while construction was most connected in 2006-2020.
Quantity of street network construction
The street network in French Polynesia spans a total of 1,400 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 8.88, which is very sprawly.
Effect on the aggregate network
New construction in each period adds to the total stock of streets, but does not change streets that have already been built. Therefore, it has a limited effect on the street network as a whole. The SNDis of the aggregate street network in the respective time periods are 8.88, 9.26, 9.25 and 9.27. Disconnectivity in French Polynesia's street network follows a zig-zag trend. In 1975, the country was most disconnected; while it was most connected in 2006-2020.