Hoorn in context: Street-network sprawl trends

Hoorn 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
HoornNoord-Holland (Region)Netherlands (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Hoorn plotted against Noord-Holland and Netherlands. The SNDi of new construction in Hoorn rose steadily, compared to Noord-Holland which rose steadily and Netherlands which peaked in 1991-2005. Most recently, Hoorn's incremental SNDi rose from 2.29 to 2.39 between 1991-2005 and 2006-2020. In terms of the aggregate network, Hoorn ranked 4th out of 9 cities in Noord-Holland and 26th out of 43 in Netherlands as of 2020.

New Street Additions (2006–2020)

SNDi value
2.39
Rank in Netherlands
29th of 43
Rank in Noord-Holland
5th of 9

Entire Network (Aggregate)

SNDi value
1.95
Rank in Netherlands
26th of 43
Rank in Noord-Holland
4th of 9

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
HoornEast KilbrideDejiang

In new street additions, Hoorn and East Kilbride both built increasingly disconnected streets over time, while Dejiang fluctuated in its street-construction patterns. For the full network, Hoorn and East Kilbride both became progressively more disconnected, while Dejiang became progressively more connected. Hoorn and Dejiang have been converging in their street-network character since 1975.