Trends
2.56
SNDi (2020)140 km
Total street network1975–2020
Analysis periodDisconnectedness burden of street construction in Chang An Da Xue Cheng
▸ Hover over bars to see values
The chart above shows, for each construction period in 长安大学城, 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 89 km of street added at an SNDi of 2.75. Overall, the SNDi of new street additions followed a zig-zag trend with an overall increase.
Most recent snapshot
Taking into account the entire (i.e. aggregate) street network in 长安大学城 as of 2020, the overall level of street-network sprawl is 2.56, which is relatively well-connected.
Trends in street network construction
The SNDis of street construction for the respective time periods are 1.96, 2.65, 2.29 and 2.75. Disconnectivity in street construction in 长安大学城 follows a zig-zag trend. In 1975, street construction was most disconnected, while construction was most connected in 2006-2020.
Quantity of street network construction
The street network in 长安大学城 spans a total of 140 kilometers. It is dominated by roads constructed in 2006-2020. These roads have an SNDi of 2.75, which is relatively 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 1.96, 2.21, 2.25 and 2.56. Overall, the SNDi of the aggregate street network has risen: the street network in 长安大学城 has become more disconnected.