Trends
3.85
SNDi (2020)490 km
Total street network1975–2020
Analysis periodDisconnectedness burden of street construction in Santa Ana
▸ Hover over bars to see values
The chart above shows, for each construction period in Santa Ana, 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 140 km of street added at an SNDi of 4.36. 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 Santa Ana as of 2020, the overall level of street-network sprawl is 3.85, which is relatively sprawly.
Trends in street network construction
The SNDis of street construction for the respective time periods are 2.6, 4.73, 4.36 and 4.87. Disconnectivity in street construction in Santa Ana 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 Santa Ana spans a total of 490 kilometers. The period with the greatest volume of street construction was 1975. These roads have an SNDi of 2.6, 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 2.6, 3.29, 3.65 and 3.85. Overall, the SNDi of the aggregate street network has risen: the street network in Santa Ana has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.7 points, but between 1991-2005 and 2006-2020, it rose by just 0.2.