Tagbilaran 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 Tagbilaran plotted against Bohol and Philippines. While Bohol and Philippines both rose steadily, Tagbilaran's new street additions rose steadily. Most recently, Tagbilaran's incremental SNDi rose from 4.85 to 6.29 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tagbilaran ranked 1st out of 1 cities in Bohol and 43rd 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?

• Nagda, India
• Anakapalle, India
• АЗС, Russia
• Mihtarlam, Afghanistan
• Areka, Ethiopia
• Jinzhou, China

In new street additions, Tagbilaran built increasingly disconnected streets over time, while Nagda fluctuated in its street-construction patterns and Mihtarlam built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. Looking at the full network, Nagda and Mihtarlam both became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards, while Tagbilaran became progressively more disconnected. Notably, Tagbilaran had a more connected network than Nagda in 1975 but the two have since reversed their relative ranking.