Sillanwali in context: Street-network sprawl trends

Sillanwali in context

2.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
2.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
SillanwaliPunjab (Region)Pakistan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Sillanwali plotted against Punjab and Pakistan. The SNDi of new construction in Sillanwali peaked in 1991-2005, 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, Sillanwali's incremental SNDi fell from 4.33 to 2.79 between 1991-2005 and 2006-2020. In terms of the aggregate network, Sillanwali ranked 18th out of 146 cities in Punjab and 35th out of 292 in Pakistan as of 2020.

New Street Additions (2006–2020)

SNDi value
2.79
Rank in Pakistan
17th of 292
Rank in Punjab
7th of 146

Entire Network (Aggregate)

SNDi value
2.88
Rank in Pakistan
35th of 292
Rank in Punjab
18th of 146

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

What about similarly populated cities?

36912<19751976–19901991–20052006–2020SNDi of street additions
36912<19751976–19901991–20052006–2020SNDi of entire street network
SillanwaliLakhipurMindelo

In new street additions, Sillanwali built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Lakhipur built increasingly disconnected streets over time and Mindelo fluctuated in its street-construction patterns. For the full network, Sillanwali grew more disconnected from 1975 through 1991-2005, then improved, while Lakhipur became progressively more disconnected and Mindelo fluctuated in connectivity. Notably, Sillanwali had a more connected network than Mindelo in 1975 but the two have since reversed their relative ranking.