Comparisons
Emilia-Romagna vs. the other two most closely populated regions in Italy: Piemonte and Toscana
Emilia-Romagna in context: Street-network sprawl of new development
The level of street-network sprawl in new development in Emilia-Romagna peaked in 1991-2005. To get a sense of how street development has changed in Emilia-Romagna, we can consider three of its most populous cities: Bologna, Modena and Parma. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Bologna followed a zig-zag trend with an overall increase. The level of street-network sprawl in new development in Modena peaked in 1976-1990. The level of street-network sprawl in new development in Parma rose steadily.
How do development practices in Emilia-Romagna fare in comparison to others in Italy? Most recently in 2006-2020, street construction in Emilia-Romagna was the 3rd-most disconnected out of the 17 regions in Italy. Its position in the ranks since 1975 has fallen; relative to other regions in Italy, street construction in Emilia-Romagna has become more connected. Emilia-Romagna ranked 2nd in 1975, 2nd in 1976-1990, 2nd in 1991-2005 and 3rd in 2006-2020.
Emilia-Romagna in context: Aggregate street-network sprawl
As of 2020, the city with the most disconnected street network in Emilia-Romagna is Reggio nell'Emilia with an SNDi of 2.81, which is relatively well-connected. Conversely, the most connected city is Carpi with an SNDi of 1.96, which is very well-connected. See trends for these cities: Carpi, Reggio nell'Emilia
The level of street-network sprawl in the aggregate network in Emilia-Romagna rose steadily. To get a sense of how the aggregate street network has changed in Emilia-Romagna, we can consider three of its most populous cities: Bologna, Modena and Parma. Disconnectivity in the most populous cities in Emilia-Romagna follow the same region trend.
To date, Emilia-Romagna is the 2nd-most disconnected out of the 17 regions in Italy. Its position in the ranks since 1975 has not changed. Emilia-Romagna ranked 2nd in 1975, 2nd in 1976-1990, 2nd in 1991-2005 and 2nd in 2006-2020.