Hulan in context: Street-network sprawl trends

Hulan in context

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
HulanHeilongjiang (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Hulan plotted against Heilongjiang and China. The SNDi of new construction in Hulan peaked in 1976-1990, compared to Heilongjiang which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Hulan's incremental SNDi fell from 3.11 to 2.62 between 1991-2005 and 2006-2020. In terms of the aggregate network, Hulan ranked 38th out of 67 cities in Heilongjiang and 635th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.62
Rank in China
605th of 1843
Rank in Heilongjiang
27th of 67

Entire Network (Aggregate)

SNDi value
2.56
Rank in China
635th of 1843
Rank in Heilongjiang
38th of 67

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

What about similarly populated cities?

051015<19751976–19901991–20052006–2020SNDi of street additions
051015<19751976–19901991–20052006–2020SNDi of entire street network
HulanChandanaishMontes Claros

In new street additions, Hulan built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Chandanaish built increasingly disconnected streets from 1975 through 1991-2005, then improved and Montes Claros fluctuated in its street-construction patterns. For the full network, Hulan and Chandanaish both grew more disconnected from 1975 through 1991-2005, then improved, while Montes Claros became progressively more disconnected.