Trier in context: Street-network sprawl trends

Trier in context

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
TrierRheinland-Pfalz (Region)Germany (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Trier plotted against Rheinland-Pfalz and Germany. While Rheinland-Pfalz and Germany both rose steadily, Trier's new street additions rose steadily. Most recently, Trier's incremental SNDi rose from 3.53 to 3.83 between 1991-2005 and 2006-2020. In terms of the aggregate network, Trier ranked 2nd out of 4 cities in Rheinland-Pfalz and 82nd out of 99 in Germany as of 2020.

New Street Additions (2006–2020)

SNDi value
3.83
Rank in Germany
86th of 99
Rank in Rheinland-Pfalz
2nd of 4

Entire Network (Aggregate)

SNDi value
2.35
Rank in Germany
82nd of 99
Rank in Rheinland-Pfalz
2nd of 4

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

What about similarly populated cities?

1.82.433.6<19751976–19901991–20052006–2020SNDi of street additions
1.82.433.6<19751976–19901991–20052006–2020SNDi of entire street network
TrierEregliItauna

In new street additions, Trier and Eregli both built increasingly disconnected streets over time, while Itaúna fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend. Trier and Eregli have been growing further apart in their street-network character since 1975.