Houma in context: Street-network sprawl trends
Houma in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Houma plotted against Shanxi and China. The SNDi of new construction in Houma peaked in 1976-1990, compared to Shanxi which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Houma's incremental SNDi fell from 3.61 to 3.45 between 1991-2005 and 2006-2020. In terms of the aggregate network, Houma ranked 72nd out of 80 cities in Shanxi and 1600th out of 1843 in China as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 3.45
- Rank in China
- 1130th of 1843
- Rank in Shanxi
- 56th of 80
Entire Network (Aggregate)
- SNDi value
- 4.21
- Rank in China
- 1600th of 1843
- Rank in Shanxi
- 72nd of 80
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
- Changyuan, China
- Runan, China
- Leku, Ethiopia
- Yichuan, China
- Bridgetown, Barbados
- Kirumba, Democratic Republic of the Congo
In new street additions, Houma and Yichuan both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Changyuan built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Houma grew more disconnected from 1975 through 1976-1990, then improved, while Changyuan became progressively more disconnected and Yichuan grew more disconnected from 1975 through 1991-2005, then improved.