Nijmegen in context: Street-network sprawl trends

Nijmegen in context

1.82.12.42.7<19751976–19901991–20052006–2020SNDi of street additions
1.82.12.42.7<19751976–19901991–20052006–2020SNDi of entire street network
NijmegenGelderland (Region)Netherlands (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Nijmegen plotted against Gelderland and Netherlands. The SNDi of new construction in Nijmegen followed a zig-zag trend with an overall increase, compared to Gelderland which peaked in 1991-2005 and Netherlands which peaked in 1991-2005. Most recently, Nijmegen's incremental SNDi rose from 2.14 to 2.23 between 1991-2005 and 2006-2020. In terms of the aggregate network, Nijmegen ranked 3rd out of 4 cities in Gelderland and 29th out of 43 in Netherlands as of 2020.

New Street Additions (2006–2020)

SNDi value
2.23
Rank in Netherlands
22nd of 43
Rank in Gelderland
3rd of 4

Entire Network (Aggregate)

SNDi value
1.98
Rank in Netherlands
29th of 43
Rank in Gelderland
3rd of 4

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

What about similarly populated cities?

246<19751976–19901991–20052006–2020SNDi of street additions
246<19751976–19901991–20052006–2020SNDi of entire street network
NijmegenSalalahLuputa

In new street additions, Nijmegen and Luputa both fluctuated in its street-construction patterns, while Salalah built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Nijmegen and Luputa both became progressively more disconnected, while Salalah grew more disconnected from 1975 through 1991-2005, then improved. Nijmegen and Salalah have been growing further apart in their street-network character since 1975.