Attock in context: Street-network sprawl trends

Attock in context

3.54.24.95.6<19751976–19901991–20052006–2020SNDi of street additions
3.54.24.95.6<19751976–19901991–20052006–2020SNDi of entire street network
AttockPunjab (Region)Pakistan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Attock plotted against Punjab and Pakistan. The SNDi of new construction in Attock 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, Attock's incremental SNDi rose from 3.96 to 5.44 between 1991-2005 and 2006-2020. In terms of the aggregate network, Attock ranked 113th out of 146 cities in Punjab and 189th out of 292 in Pakistan as of 2020.

New Street Additions (2006–2020)

SNDi value
5.44
Rank in Pakistan
192nd of 292
Rank in Punjab
116th of 146

Entire Network (Aggregate)

SNDi value
4.45
Rank in Pakistan
189th of 292
Rank in Punjab
113th of 146

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

What about similarly populated cities?

3.244.85.6<19751976–19901991–20052006–2020SNDi of street additions
3.244.85.6<19751976–19901991–20052006–2020SNDi of entire street network
AttockTheniNajran

In new street additions, Attock and Theni both built increasingly disconnected streets over time, while Najran built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend. Notably, Attock had a more connected network than Theni in 1975 but the two have since reversed their relative ranking.