Abéché in context: Street-network sprawl trends
Abeche in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Abéché plotted against Ouaddaï and Chad. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Abéché's incremental SNDi rose from 1.81 to 1.91 between 1991-2005 and 2006-2020. In terms of the aggregate network, Abéché ranked 2nd out of 2 cities in Ouaddaï and 14th out of 31 in Chad as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 1.91
- Rank in Chad
- 13th of 31
- Rank in Ouaddaï
- 2nd of 2
Entire Network (Aggregate)
- SNDi value
- 1.73
- Rank in Chad
- 14th of 31
- Rank in Ouaddaï
- 2nd of 2
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
- İskenderun, Turkey
- Chengtougu, China
- Dehri, India
- Xiangtan, China
- Kurukshetra, India
- Taunggyi, Myanmar
While İskenderun and Xiangtan both fluctuated in its street-construction patterns, Abéché built increasingly disconnected streets over time in new street additions. For the full network, Abéché and İskenderun both became progressively more disconnected, while Xiangtan grew more disconnected from 1975 through 1976-1990, then improved. Abéché and İskenderun have been growing further apart in their street-network character since 1975.