Hirna in context: Street-network sprawl trends
Hirna in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Hirna plotted against Oromia and Ethiopia. The SNDi of new construction in Hirna peaked in 1991-2005, compared to Oromia which followed a zig-zag trend with an overall increase and Ethiopia which followed a zig-zag trend with an overall increase. Most recently, Hirna's incremental SNDi fell from 8.53 to 3.81 between 1991-2005 and 2006-2020. In terms of the aggregate network, Hirna ranked 50th out of 71 cities in Oromia and 129th out of 181 in Ethiopia as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 3.81
- Rank in Ethiopia
- 109th of 181
- Rank in Oromia
- 42nd of 71
Entire Network (Aggregate)
- SNDi value
- 3.09
- Rank in Ethiopia
- 129th of 181
- Rank in Oromia
- 50th of 71
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
- Sohung, North Korea
- Addis Kidan, Ethiopia
- Tetovo, North Macedonia
- Hijazah, Egypt
- Islamnagar, India
- Uông Bí, Vietnam
In new street additions, Sohung and Hijazah both fluctuated in street-construction patterns, while Hirna built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Hirna grew more disconnected from 1975 through 1991-2005, then improved, while Sohung grew more disconnected from 1975 through 1976-1990, then improved and Hijazah fluctuated in connectivity. Notably, Hirna had a more connected network than Hijazah in 1975, but the two have since reversed their relative ranking.