Patna in context: Street-network sprawl trends
Patna in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Patna plotted against Bihar and India. The SNDi of new construction in Patna rose steadily, compared to Bihar which followed a zig-zag trend with an overall increase and India which followed a zig-zag trend with an overall increase. Most recently, Patna's incremental SNDi rose from 4.41 to 5.4 between 1991-2005 and 2006-2020. In terms of the aggregate network, Patna ranked 91st out of 264 cities in Bihar and 1171st out of 1868 in India as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 5.4
- Rank in India
- 1180th of 1868
- Rank in Bihar
- 141st of 264
Entire Network (Aggregate)
- SNDi value
- 4.19
- Rank in India
- 1171st of 1868
- Rank in Bihar
- 91st of 264
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
- Kasaï-Oriental, Democratic Republic of the Congo
- Durban, South Africa
- Naples, Italy
- Kathmandu, Nepal
- Owerri, Nigeria
- Algiers, Algeria
Patna, Kasaï-Oriental, and Kathmandu all built increasingly disconnected streets over time in new street construction. The same pattern holds for the full street network. Patna and Kasaï-Oriental have been growing further apart in their street-network character since 1975.