Trends
2.25
SNDi (2020)280 km
Total street network1975–2020
Analysis periodDisconnectedness burden of street construction in Changji/Sanji
▸ Hover over bars to see values
The chart above shows, for each construction period in Changji/Sanji, 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 2006-2020 period contributed the greatest disconnectedness burden, with 110 km of street added at an SNDi of 2.32. Overall, the SNDi of new street additions peaked in 1976-1990.
Most recent snapshot
Taking into account the entire (i.e. aggregate) street network in Changji/Sanji as of 2020, the overall level of street-network sprawl is 2.25, which is well-connected.
Trends in street network construction
The SNDis of street construction for the respective time periods are 1.48, 2.49, 2.43 and 2.32. Street construction in Changji/Sanji increased in disconnectivity initially but has since improved. The streets constructed in 1976-1990 were the most disconnected.
Quantity of street network construction
The street network in Changji/Sanji spans a total of 280 kilometers. The period with the greatest volume of street construction was 2006-2020. These roads have an SNDi of 2.32, which is well-connected.
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 1.48, 1.95, 2.21 and 2.25. Overall, the SNDi of the aggregate street network has risen: the street network in Changji/Sanji has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.47 points, but between 1991-2005 and 2006-2020, it rose by just 0.04.