New Halfa in context: Street-network sprawl trends

New Halfa in context

1.42.12.83.5<19751976–19901991–20052006–2020SNDi of street additions
1.42.12.83.5<19751976–19901991–20052006–2020SNDi of entire street network
New HalfaKassala (Region)Sudan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with New Halfa plotted against Kassala and Sudan. The SNDi of new construction in New Halfa peaked in 1991-2005, compared to Kassala which peaked in 1991-2005 and Sudan which followed a zig-zag trend with an overall increase. Most recently, New Halfa's incremental SNDi fell from 2.04 to 1.56 between 1991-2005 and 2006-2020. In terms of the aggregate network, New Halfa ranked 5th out of 6 cities in Kassala and 31st out of 78 in Sudan as of 2020.

New Street Additions (2006–2020)

SNDi value
1.56
Rank in Sudan
29th of 78
Rank in Kassala
4th of 6

Entire Network (Aggregate)

SNDi value
1.49
Rank in Sudan
31st of 78
Rank in Kassala
5th of 6

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

What about similarly populated cities?

1.42.12.83.5<19751976–19901991–20052006–2020SNDi of street additions
1.42.12.83.5<19751976–19901991–20052006–2020SNDi of entire street network
New HalfaRongRubtsovsk

In new street additions, New Halfa built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Rong fluctuated in its street-construction patterns and Rubtsovsk built increasingly disconnected streets over time. For the full network, New Halfa and Rubtsovsk both became progressively more disconnected, while Rong fluctuated in connectivity.