Guildford in context: Street-network sprawl trends

Guildford in context

2.83.54.24.9<19751976–19901991–20052006–2020SNDi of street additions
2.83.54.24.9<19751976–19901991–20052006–2020SNDi of entire street network
GuildfordEngland (Region)United Kingdom (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Guildford plotted against England and United Kingdom. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Guildford's incremental SNDi fell from 4.55 to 2.63 between 1991-2005 and 2006-2020. In terms of the aggregate network, Guildford ranked 69th out of 124 cities in England and 77th out of 143 in United Kingdom as of 2020.

New Street Additions (2006–2020)

SNDi value
2.63
Rank in United Kingdom
5th of 143
Rank in England
5th of 124

Entire Network (Aggregate)

SNDi value
3.66
Rank in United Kingdom
77th of 143
Rank in England
69th of 124

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

What about similarly populated cities?

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
GuildfordAl 'AbbasiyyaRosenheim

In new street additions, Guildford and Al ‘Abbāsiyya both built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Rosenheim fluctuated in its street-construction patterns. Looking at the full network, Al ‘Abbāsiyya and Rosenheim both became progressively more disconnected, while Guildford grew more disconnected from 1975 through 1991-2005, then improved. Guildford and Al ‘Abbāsiyya have been converging in their street-network character since 1975.