Trends
2.18
SNDi (2020)170 km
Total street network1975–2020
Analysis periodDisconnectedness burden of street construction in Al-Bab
▸ Hover over bars to see values
The chart above shows, for each construction period in Al-Bab, 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 73 km of street added at an SNDi of 2.44. 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 Al-Bab as of 2020, the overall level of street-network sprawl is 2.18, which is well-connected.
Trends in street network construction
The SNDis of street construction for the respective time periods are 1.75, 2.89, 2.44 and 3.16. Disconnectivity in street construction in Al-Bab 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 Al-Bab spans a total of 170 kilometers. It is dominated by roads constructed in 1991-2005. These roads have an SNDi of 2.44, 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 1.75, 1.78, 2.04 and 2.18. Overall, the SNDi of the aggregate street network has risen: the street network in Al-Bab has become more disconnected.