Lalian in context: Street-network sprawl trends

Lalian in context

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
LalianPunjab (Region)Pakistan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Lalian plotted against Punjab and Pakistan. The SNDi of new construction in Lalian was at its lowest 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, Lalian's incremental SNDi rose from 1.34 to 2.61 between 1991-2005 and 2006-2020. In terms of the aggregate network, Lalian ranked 3rd out of 146 cities in Punjab and 8th out of 292 in Pakistan as of 2020.

New Street Additions (2006–2020)

SNDi value
2.61
Rank in Pakistan
12th of 292
Rank in Punjab
5th of 146

Entire Network (Aggregate)

SNDi value
2.42
Rank in Pakistan
8th of 292
Rank in Punjab
3rd of 146

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

What about similarly populated cities?

1.82.73.6<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.6<19751976–19901991–20052006–2020SNDi of entire street network
LalianFazenda ZucchiRumia

While Fazenda Zucchi and Rumia both built increasingly disconnected streets over time, Lalian built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns in new street additions. Looking at the full network, Fazenda Zucchi and Rumia both became progressively more disconnected, while Lalian became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Notably, Lalian had a more sprawly network than Fazenda Zucchi in 1975 but the two have since reversed their relative ranking.