Ad Dala in context: Street-network sprawl trends
Ad Dala in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ad Dala plotted against Al Dali' and Yemen. The SNDi of new construction in Ad Dala peaked in 1991-2005, compared to Al Dali' which was at its lowest in 1976-1990 and Yemen which followed a zig-zag trend with an overall increase. Most recently, Ad Dala's incremental SNDi fell from 7.29 to 5.16 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ad Dala ranked 2nd out of 3 cities in Al Dali' and 38th out of 58 in Yemen as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 5.16
- Rank in Yemen
- 32nd of 58
- Rank in Al Dali'
- 2nd of 3
Entire Network (Aggregate)
- SNDi value
- 4.78
- Rank in Yemen
- 38th of 58
- Rank in Al Dali'
- 2nd of 3
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
In new street additions, Ad Dala built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Shuangliao fluctuated in its street-construction patterns and Devada built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Ad Dala and Shuangliao both became progressively more disconnected, while Devada grew more disconnected from 1975 through 1991-2005, then improved.