Assab in context: Street-network sprawl trends

Assab in context

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
AssabDebubawi Keyih Bahri (Region)Eritrea (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Assab plotted against Debubawi Keyih Bahri and Eritrea. While Debubawi Keyih Bahri and Eritrea both followed a zig-zag trend with an overall increase, Assab's new street additions followed a zig-zag trend with an overall increase. Most recently, Assab's incremental SNDi rose from 1.36 to 1.8 between 1991-2005 and 2006-2020. In terms of the aggregate network, Assab ranked 1st out of 1 cities in Debubawi Keyih Bahri and 2nd out of 8 in Eritrea as of 2020.

New Street Additions (2006–2020)

SNDi value
1.8
Rank in Eritrea
4th of 8
Rank in Debubawi Keyih Bahri
1st of 1

Entire Network (Aggregate)

SNDi value
1.51
Rank in Eritrea
2nd of 8
Rank in Debubawi Keyih Bahri
1st of 1

Rankings go from most connected to most disconnected — rank 1 is the most connected.

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
AssabLoricaAz Zuhrah

In new street additions, Assab fluctuated in its street-construction patterns, while Lorica built increasingly disconnected streets from 1975 through 1976-1990, then improved and Az Zuhrah fluctuated in its street-construction patterns. For the full network, Assab fluctuated in connectivity, while Lorica grew more disconnected from 1975 through 1976-1990, then improved and Az Zuhrah fluctuated in connectivity. Assab and Lorica have been growing further apart in their street-network character since 1975.