Trends
2.57
SNDi (2020)2,600 km
Total street network1975–2020
Analysis periodDisconnectedness burden of street construction in Al-Qadisiyah
▸ Hover over bars to see values
The chart above shows, for each construction period in the Al-Qadisiyah region, 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 1975 period contributed the greatest disconnectedness burden, with 1,500 km of street added at an SNDi of 2.56. Overall, the SNDi of new street additions in the region was at its lowest in 1991-2005.
How have Al-Qadisiyah's street networks changed over time?
Most recent snapshot
Taking into account the entire (i.e. aggregate) street network in Al-Qadisiyah as of 2020, the overall level of street-network sprawl is 2.57, which is relatively well-connected.
Trends in street network construction
The SNDis of street construction for the respective time periods are 2.56, 2.53, 2.32 and 2.97. The disconnectivity of new streets constructed in Al-Qadisiyah fell, then rose. In 1991-2005, new street layouts were the most connected.
Quantity of street network construction
The street network in Al-Qadisiyah spans a total of 2,600 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 2.56, 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 2.56, 2.55, 2.5 and 2.57. The SNDi of the aggregate street network in fell at first, but Al-Qadisiyah has worsened in disconnectivity since 2000.