Pir Mahal in context: Street-network sprawl trends

Pir Mahal in context

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
Pir MahalPunjab (Region)Pakistan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Pir Mahal plotted against Punjab and Pakistan. The SNDi of new construction in Pir Mahal rose steadily, compared to Punjab which followed a zig-zag trend with an overall increase and Pakistan which followed a zig-zag trend with an overall increase. Most recently, Pir Mahal's incremental SNDi rose from 3.11 to 3.29 between 1991-2005 and 2006-2020. In terms of the aggregate network, Pir Mahal ranked 10th out of 146 cities in Punjab and 22nd out of 292 in Pakistan as of 2020.

New Street Additions (2006–2020)

SNDi value
3.29
Rank in Pakistan
40th of 292
Rank in Punjab
23rd of 146

Entire Network (Aggregate)

SNDi value
2.69
Rank in Pakistan
22nd of 292
Rank in Punjab
10th of 146

Rankings go from most connected to most disconnected — rank 1 is the most connected.

What about similarly populated cities?

0.91.82.73.6<19751976–19901991–20052006–2020SNDi of street additions
0.91.82.73.6<19751976–19901991–20052006–2020SNDi of entire street network
Pir MahalEl Abiodh Sidi CheikhGuangning

In new street additions, Pir Mahal built increasingly disconnected streets over time, while El Abiodh Sidi Cheikh built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns and Guangning fluctuated in its street-construction patterns. For the full network, Pir Mahal and Guangning both became progressively more disconnected, while El Abiodh Sidi Cheikh became progressively more connected. Notably, Pir Mahal had a more connected network than El Abiodh Sidi Cheikh in 1975 but the two have since reversed their relative ranking.