Swansea in context: Street-network sprawl trends
Swansea in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Swansea plotted against Wales and United Kingdom. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Swansea's incremental SNDi fell from 5.79 to 5.43 between 1991-2005 and 2006-2020. In terms of the aggregate network, Swansea ranked 4th out of 5 cities in Wales and 90th out of 143 in United Kingdom as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 5.43
- Rank in United Kingdom
- 122nd of 143
- Rank in Wales
- 5th of 5
Entire Network (Aggregate)
- SNDi value
- 3.76
- Rank in United Kingdom
- 90th of 143
- Rank in Wales
- 4th of 5
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
- Moroni, Comoros
- Lanckhul, Jammu and Kashmir
- Ekpoma, Nigeria
- Parhati, India
- Charallave, Venezuela
- Phalodi, India
In new street additions, Moroni and Parhati both built increasingly disconnected streets over time, while Swansea built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend. Swansea and Moroni have been growing further apart in their street-network character since 1975.