Trends
2.07
SNDi (2020)140 km
Total street network1975–2020
Analysis periodDisconnectedness burden of street construction in Sincheon-dong
▸ Hover over bars to see values
The chart above shows, for each construction period in Sincheon-dong, 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 50 km of street added at an SNDi of 2.12. 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 Sincheon-dong as of 2020, the overall level of street-network sprawl is 2.07, which is well-connected.
Trends in street network construction
The SNDis of street construction for the respective time periods are 1.81, 2.4, 2.12 and 2.11. Street construction in Sincheon-dong 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 Sincheon-dong spans a total of 140 kilometers. The period with the greatest volume of street construction was 1991-2005. These roads have an SNDi of 2.12, 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 1.81, 2.0, 2.06 and 2.07. Overall, the SNDi of the aggregate street network has risen: the street network in Sincheon-dong has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.18 points, but between 1991-2005 and 2006-2020, it rose by just 0.02.