Trends
5.08
SNDi (2020)540 km
Total street network1975–2020
Analysis periodDisconnectedness burden of street construction in Cary
▸ Hover over bars to see values
The chart above shows, for each construction period in Cary, 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 250 km of street added at an SNDi of 5.27. 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 Cary as of 2020, the overall level of street-network sprawl is 5.08, which is very sprawly.
Trends in street network construction
The SNDis of street construction for the respective time periods are 4.78, 5.52, 5.27 and 4.32. Street construction in Cary 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 Cary spans a total of 540 kilometers. It is dominated by roads constructed in 1991-2005. These roads have an SNDi of 5.27, 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 4.78, 5.26, 5.27 and 5.08. The aggregate street network in Cary increased in disconnectivity initially,but the trend has turned around after 2000.