Trends
2.46
SNDi (2020)2,200 km
Total street network1975–2020
Analysis periodDisconnectedness burden of street construction in Al-Najaf
▸ Hover over bars to see values
The chart above shows, for each construction period in Al-Najaf, 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 2006-2020 period contributed the greatest disconnectedness burden, with 710 km of street added at an SNDi of 2.57. 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-Najaf as of 2020, the overall level of street-network sprawl is 2.46, which is relatively well-connected.
Trends in street network construction
The SNDis of street construction for the respective time periods are 2.48, 2.69, 2.23 and 2.57. Disconnectivity in street construction in Al-Najaf follows a zig-zag trend. In 1991-2005, street construction was most disconnected, while construction was most connected in 1976-1990.
Quantity of street network construction
The street network in Al-Najaf spans a total of 2,200 kilometers. The period with the greatest volume of street construction was 2006-2020. These roads have an SNDi of 2.57, 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 2.48, 2.53, 2.4 and 2.46. Disconnectivity in Al-Najaf's street network follows a zig-zag trend. In 1991-2005, the city was most disconnected; while it was most connected in 1976-1990.