Saint-André in context: Street-network sprawl trends

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Saint-André plotted against Saint-Benoît and Réunion. The SNDi of new construction in Saint-André was at its lowest in 1976-1990, compared to Saint-Benoît which was at its lowest in 1976-1990 and Réunion which rose steadily. Most recently, Saint-André's incremental SNDi rose from 4.84 to 5.69 between 1991-2005 and 2006-2020. In terms of the aggregate network, Saint-André ranked 1st out of 1 cities in Saint-Benoît and 1st out of 4 in Réunion as of 2020.

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

What about similarly populated cities?

• Glen Burnie, United States
• Kauriram, India
• Lüneburg, Germany
• Khrew, Jammu and Kashmir
• Polasara, India
• Kanchra, India

While Glen Burnie and Khrew both built increasingly disconnected streets from 1975 through 1991-2005, then improved, Saint-André built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns in new street additions. Looking at the full network, Glen Burnie and Khrew both became progressively more disconnected, while Saint-André became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Notably, Saint-André had a more connected network than Khrew in 1975 but the two have since reversed their relative ranking.