Deventer in context: Street-network sprawl trends

Deventer in context

1.822.22.42.6<19751976–19901991–20052006–2020SNDi of street additions
1.822.22.42.6<19751976–19901991–20052006–2020SNDi of entire street network
DeventerOverijssel (Region)Netherlands (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Deventer plotted against Overijssel and Netherlands. The SNDi of new construction in Deventer followed a zig-zag trend with an overall increase, compared to Overijssel which peaked in 1976-1990 and Netherlands which peaked in 1991-2005. Most recently, Deventer's incremental SNDi rose from 2.01 to 2.29 between 1991-2005 and 2006-2020. In terms of the aggregate network, Deventer ranked 3rd out of 5 cities in Overijssel and 27th out of 43 in Netherlands as of 2020.

New Street Additions (2006–2020)

SNDi value
2.29
Rank in Netherlands
25th of 43
Rank in Overijssel
4th of 5

Entire Network (Aggregate)

SNDi value
1.95
Rank in Netherlands
27th of 43
Rank in Overijssel
3rd of 5

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

What about similarly populated cities?

246810<19751976–19901991–20052006–2020SNDi of street additions
246810<19751976–19901991–20052006–2020SNDi of entire street network
DeventerZaki BiamSong

In new street additions, Deventer and Zaki Biam both fluctuated in its street-construction patterns, while Song built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Deventer and Zaki Biam both became progressively more disconnected, while Song became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Deventer and Zaki Biam have been growing further apart in their street-network character since 1975.