Coyah in context: Street-network sprawl trends
Coyah in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Coyah plotted against Conakry and Guinea. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Coyah's incremental SNDi rose from 4.65 to 6.82 between 1991-2005 and 2006-2020. In terms of the aggregate network, Coyah ranked 1st out of 1 cities in Conakry and 21st out of 24 in Guinea as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 6.82
- Rank in Guinea
- 21st of 24
- Rank in Conakry
- 1st of 1
Entire Network (Aggregate)
- SNDi value
- 3.9
- Rank in Guinea
- 21st of 24
- Rank in Conakry
- 1st of 1
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
- Hyderabad, Pakistan
- Thiruvananthapuram, India
- Tunis, Tunisia
- Kaohsiung, Taiwan
- Mogadishu, Somalia
- Fukuoka, Japan
In new street additions, Coyah and Hyderabad both built increasingly disconnected streets over time, while Kaohsiung fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend. Coyah and Hyderabad have been growing further apart in their street-network character since 1975.