Amersfoort in context: Street-network sprawl trends

Amersfoort in context

1.82.12.4<19751976–19901991–20052006–2020SNDi of street additions
1.82.12.4<19751976–19901991–20052006–2020SNDi of entire street network
AmersfoortUtrecht (Region)Netherlands (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Amersfoort plotted against Utrecht and Netherlands. The SNDi of new construction in Amersfoort followed a zig-zag trend with an overall increase, compared to Utrecht which peaked in 1976-1990 and Netherlands which peaked in 1991-2005. Most recently, Amersfoort's incremental SNDi rose from 1.91 to 2.19 between 1991-2005 and 2006-2020. In terms of the aggregate network, Amersfoort ranked 3rd out of 4 cities in Utrecht and 20th out of 43 in Netherlands as of 2020.

New Street Additions (2006–2020)

SNDi value
2.19
Rank in Netherlands
20th of 43
Rank in Utrecht
3rd of 4

Entire Network (Aggregate)

SNDi value
1.85
Rank in Netherlands
20th of 43
Rank in Utrecht
3rd of 4

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

What about similarly populated cities?

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
AmersfoortVeliky NovgorodBargarh

In new street additions, Amersfoort fluctuated in its street-construction patterns, while Veliky Novgorod built increasingly disconnected streets from 1975 through 1976-1990, then improved and Bargarh built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend. Amersfoort and Veliky Novgorod have been growing further apart in their street-network character since 1975.