Legazpi 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 Legazpi plotted against Albay and Philippines. The SNDi of new construction in Legazpi was at its lowest in 1991-2005, compared to Albay which was at its lowest in 1976-1990 and Philippines which rose steadily. Most recently, Legazpi's incremental SNDi rose from 4.87 to 5.42 between 1991-2005 and 2006-2020. In terms of the aggregate network, Legazpi ranked 3rd out of 3 cities in Albay and 75th out of 114 in Philippines as of 2020.

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

What about similarly populated cities?

• Zhoucun, China
• شبلنجة, Egypt
• Gijón, Spain
• Taganrog, Russia
• Plymouth, United Kingdom
• Binangun, Indonesia

In new street additions, Legazpi built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, while Zhoucun built increasingly disconnected streets from 1975 through 1976-1990, then improved and Taganrog built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Legazpi became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards, while Zhoucun grew more disconnected from 1975 through 1991-2005, then improved and Taganrog became progressively more disconnected.