Fredrikstad in context: Street-network sprawl trends

Fredrikstad in context

3.244.85.6<19751976–19901991–20052006–2020SNDi of street additions
3.244.85.6<19751976–19901991–20052006–2020SNDi of entire street network
FredrikstadAstfold (Region)Norway (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Fredrikstad plotted against Ãstfold and Norway. The SNDi of new construction in Fredrikstad peaked in 1991-2005, compared to Ãstfold which peaked in 1991-2005 and Norway which rose steadily. Most recently, Fredrikstad's incremental SNDi fell from 5.79 to 5.39 between 1991-2005 and 2006-2020. In terms of the aggregate network, Fredrikstad ranked 1st out of 1 cities in Ãstfold and 7th out of 8 in Norway as of 2020.

New Street Additions (2006–2020)

SNDi value
5.39
Rank in Norway
8th of 8
Rank in Ãstfold
1st of 1

Entire Network (Aggregate)

SNDi value
4.75
Rank in Norway
7th of 8
Rank in Ãstfold
1st of 1

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

What about similarly populated cities?

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
FredrikstadHasanpuraSan Fernando

While Hasanpura and San Fernando both built increasingly disconnected streets over time, Fredrikstad built increasingly disconnected streets from 1975 through 1991-2005, then improved in new street additions. For the full street network, though, all three cities follow the same trend. Fredrikstad and Hasanpura have been converging in their street-network character since 1975.