Langtang in context: Street-network sprawl trends
Langtang in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Langtang plotted against Plateau and Nigeria. The SNDi of new construction in Langtang rose steadily, compared to Plateau which rose steadily and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Langtang's incremental SNDi rose from 1.35 to 1.58 between 1991-2005 and 2006-2020. In terms of the aggregate network, Langtang ranked 1st out of 8 cities in Plateau and 20th out of 422 in Nigeria as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 1.58
- Rank in Nigeria
- 27th of 422
- Rank in Plateau
- 2nd of 8
Entire Network (Aggregate)
- SNDi value
- 1.37
- Rank in Nigeria
- 20th of 422
- Rank in Plateau
- 1st of 8
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
Langtang, Kapashia, and Raha all built increasingly disconnected streets over time in new street construction. The same pattern holds for the full street network.