Trends
1.75
SNDi (2020)600 km
Total street network1975–2020
Analysis periodDisconnectedness burden of street construction in Gumi-si
▸ Hover over bars to see values
The chart above shows, for each construction period in Gumi-si, 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 1991-2005 period contributed the greatest disconnectedness burden, with 240 km of street added at an SNDi of 1.74. 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 Gumi-si as of 2020, the overall level of street-network sprawl is 1.75, which is very well-connected.
Trends in street network construction
The SNDis of street construction for the respective time periods are 1.62, 2.24, 1.74 and 2.39. Disconnectivity in street construction in Gumi-si 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 Gumi-si spans a total of 600 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 1.62, which is very 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 1.62, 1.76, 1.73 and 1.75. Disconnectivity in Gumi-si's street network follows a zig-zag trend. In 1975, the city was most disconnected; while it was most connected in 1976-1990.