Loudi in context: Street-network sprawl trends

Loudi in context

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
LoudiHunan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Loudi plotted against Hunan and China. The SNDi of new construction in Loudi peaked in 1976-1990, compared to Hunan which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Loudi's incremental SNDi fell from 4.11 to 2.65 between 1991-2005 and 2006-2020. In terms of the aggregate network, Loudi ranked 80th out of 89 cities in Hunan and 1614th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.65
Rank in China
625th of 1843
Rank in Hunan
36th of 89

Entire Network (Aggregate)

SNDi value
4.25
Rank in China
1614th of 1843
Rank in Hunan
80th of 89

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
LoudiGhazipurCooch Behar

In new street additions, Loudi built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Ghazipur fluctuated in its street-construction patterns and Cooch Behar built increasingly disconnected streets over time. Looking at the full network, Ghazipur and Cooch Behar both became progressively more disconnected, while Loudi grew more disconnected from 1975 through 1976-1990, then improved. Notably, Loudi had a more sprawly network than Ghazipur in 1975 but the two have since reversed their relative ranking.