Street Network Sprawl Map at McGill
@sprawlmap.bsky.social
Official Account for The Street-Network Sprawl Map (Barrington-Leigh, Millard-Ball 2019)
📍 City of the Day: Vellore, India (pop. 794k)
SNDi: 3.74 — Relatively sprawly.
Development since 1975 has been less connected than the older streets, pushing today's score to 3.74. More disconnected than 66% of cities we track.
Link to city
SNDi: 3.74 — Relatively sprawly.
Development since 1975 has been less connected than the older streets, pushing today's score to 3.74. More disconnected than 66% of cities we track.
Link to city
October 2, 2026 at 10:03 AM
📍 City of the Day: Vellore, India (pop. 794k)
SNDi: 3.74 — Relatively sprawly.
Development since 1975 has been less connected than the older streets, pushing today's score to 3.74. More disconnected than 66% of cities we track.
Link to city
SNDi: 3.74 — Relatively sprawly.
Development since 1975 has been less connected than the older streets, pushing today's score to 3.74. More disconnected than 66% of cities we track.
Link to city
📍 City of the Day: Kumasi, Ghana (pop. 3.2M)
SNDi: 4.28 — Sprawly.
Development since 1975 has been less connected than the older streets, pushing today's score to 4.28. More disconnected than 79% of cities we track.
Link to city
SNDi: 4.28 — Sprawly.
Development since 1975 has been less connected than the older streets, pushing today's score to 4.28. More disconnected than 79% of cities we track.
Link to city
October 1, 2026 at 4:41 PM
📍 City of the Day: Kumasi, Ghana (pop. 3.2M)
SNDi: 4.28 — Sprawly.
Development since 1975 has been less connected than the older streets, pushing today's score to 4.28. More disconnected than 79% of cities we track.
Link to city
SNDi: 4.28 — Sprawly.
Development since 1975 has been less connected than the older streets, pushing today's score to 4.28. More disconnected than 79% of cities we track.
Link to city
📍 City of the Day: Kollam, India (pop. 2.4M)
SNDi: 4.70 — Sprawly.
Connectivity peaked around 1976-1990 before newer development reversed the gains, leaving today's score at 4.70. More disconnected than 87% of cities we track.
Link to city
SNDi: 4.70 — Sprawly.
Connectivity peaked around 1976-1990 before newer development reversed the gains, leaving today's score at 4.70. More disconnected than 87% of cities we track.
Link to city
October 1, 2026 at 10:03 AM
📍 City of the Day: Kollam, India (pop. 2.4M)
SNDi: 4.70 — Sprawly.
Connectivity peaked around 1976-1990 before newer development reversed the gains, leaving today's score at 4.70. More disconnected than 87% of cities we track.
Link to city
SNDi: 4.70 — Sprawly.
Connectivity peaked around 1976-1990 before newer development reversed the gains, leaving today's score at 4.70. More disconnected than 87% of cities we track.
Link to city
📍 City of the Day: Phoenix, United States (pop. 2.2M)
SNDi: 3.24 — Moderately connected.
Development since 1975 has been less connected than the older streets, pushing today's score to 3.24. More disconnected than 50% of cities we track.
Link to city
SNDi: 3.24 — Moderately connected.
Development since 1975 has been less connected than the older streets, pushing today's score to 3.24. More disconnected than 50% of cities we track.
Link to city
September 30, 2026 at 6:34 PM
📍 City of the Day: Phoenix, United States (pop. 2.2M)
SNDi: 3.24 — Moderately connected.
Development since 1975 has been less connected than the older streets, pushing today's score to 3.24. More disconnected than 50% of cities we track.
Link to city
SNDi: 3.24 — Moderately connected.
Development since 1975 has been less connected than the older streets, pushing today's score to 3.24. More disconnected than 50% of cities we track.
Link to city
📍 City of the Day: Beni Suef, Egypt (pop. 573k)
SNDi: 3.08 — Moderately connected.
Development since 1975 has been less connected than the older streets, pushing today's score to 3.08. More connected than 55% of cities we track.
Link to city
SNDi: 3.08 — Moderately connected.
Development since 1975 has been less connected than the older streets, pushing today's score to 3.08. More connected than 55% of cities we track.
Link to city
September 28, 2026 at 7:47 PM
📍 City of the Day: Beni Suef, Egypt (pop. 573k)
SNDi: 3.08 — Moderately connected.
Development since 1975 has been less connected than the older streets, pushing today's score to 3.08. More connected than 55% of cities we track.
Link to city
SNDi: 3.08 — Moderately connected.
Development since 1975 has been less connected than the older streets, pushing today's score to 3.08. More connected than 55% of cities we track.
Link to city
📍 City of the Day: Ardabil, Iran (pop. 395k)
SNDi: 2.40 — Well-connected.
The city has steadily gained connectivity since 1975, pulling today's score down to 2.40. More connected than 79% of cities we track.
Link to city
SNDi: 2.40 — Well-connected.
The city has steadily gained connectivity since 1975, pulling today's score down to 2.40. More connected than 79% of cities we track.
Link to city
September 28, 2026 at 5:34 PM
📍 City of the Day: Ardabil, Iran (pop. 395k)
SNDi: 2.40 — Well-connected.
The city has steadily gained connectivity since 1975, pulling today's score down to 2.40. More connected than 79% of cities we track.
Link to city
SNDi: 2.40 — Well-connected.
The city has steadily gained connectivity since 1975, pulling today's score down to 2.40. More connected than 79% of cities we track.
Link to city
📍 City of the Day: Dongsheng, China (pop. 458k)
SNDi: 2.14 — Well-connected.
Disconnectedness climbed until 1991-2005, before easing off, leaving today's score at 2.14. More connected than 86% of cities we track.
sprawlmap.org/trends/china/neimongol/dongsheng.html
SNDi: 2.14 — Well-connected.
Disconnectedness climbed until 1991-2005, before easing off, leaving today's score at 2.14. More connected than 86% of cities we track.
sprawlmap.org/trends/china/neimongol/dongsheng.html
September 28, 2026 at 5:28 PM
📍 City of the Day: Dongsheng, China (pop. 458k)
SNDi: 2.14 — Well-connected.
Disconnectedness climbed until 1991-2005, before easing off, leaving today's score at 2.14. More connected than 86% of cities we track.
sprawlmap.org/trends/china/neimongol/dongsheng.html
SNDi: 2.14 — Well-connected.
Disconnectedness climbed until 1991-2005, before easing off, leaving today's score at 2.14. More connected than 86% of cities we track.
sprawlmap.org/trends/china/neimongol/dongsheng.html
📍 City of the Day: Butembo, Democratic Republic of the Congo (pop. 372k)
SNDi: 1.59 — Very well-connected.
Development since 1975 has been less connected than the older streets, pushing today's score to 1.59.
sprawlmap.org/trends/democraticrepublicofthecongo/nordkivu/butembo.html
SNDi: 1.59 — Very well-connected.
Development since 1975 has been less connected than the older streets, pushing today's score to 1.59.
sprawlmap.org/trends/democraticrepublicofthecongo/nordkivu/butembo.html
September 28, 2026 at 5:20 PM
📍 City of the Day: Butembo, Democratic Republic of the Congo (pop. 372k)
SNDi: 1.59 — Very well-connected.
Development since 1975 has been less connected than the older streets, pushing today's score to 1.59.
sprawlmap.org/trends/democraticrepublicofthecongo/nordkivu/butembo.html
SNDi: 1.59 — Very well-connected.
Development since 1975 has been less connected than the older streets, pushing today's score to 1.59.
sprawlmap.org/trends/democraticrepublicofthecongo/nordkivu/butembo.html
📍 City of the Day: Karaj, Iran
SNDi: 4.23 — Sprawly.
Connectivity peaked around 1976-1990 before newer development reversed the gains, leaving today's score at 4.23. More disconnected than 78% of cities we track.
https://sprawlmap.org/trends/iran/alborz/karaj.html
SNDi: 4.23 — Sprawly.
Connectivity peaked around 1976-1990 before newer development reversed the gains, leaving today's score at 4.23. More disconnected than 78% of cities we track.
https://sprawlmap.org/trends/iran/alborz/karaj.html
September 28, 2026 at 5:13 PM
📍 City of the Day: Karaj, Iran
SNDi: 4.23 — Sprawly.
Connectivity peaked around 1976-1990 before newer development reversed the gains, leaving today's score at 4.23. More disconnected than 78% of cities we track.
https://sprawlmap.org/trends/iran/alborz/karaj.html
SNDi: 4.23 — Sprawly.
Connectivity peaked around 1976-1990 before newer development reversed the gains, leaving today's score at 4.23. More disconnected than 78% of cities we track.
https://sprawlmap.org/trends/iran/alborz/karaj.html
📍 City of the Day: Huambo, Angola
SNDi: 3.69 — Relatively sprawly.
Each wave of development since has been less connected than the last, pushing today's score to 3.69. More disconnected than 65% of cities we track.
https://sprawlmap.org/trends/angola/huambo/huambo.html
SNDi: 3.69 — Relatively sprawly.
Each wave of development since has been less connected than the last, pushing today's score to 3.69. More disconnected than 65% of cities we track.
https://sprawlmap.org/trends/angola/huambo/huambo.html
August 10, 2026 at 1:25 PM
📍 City of the Day: Huambo, Angola
SNDi: 3.69 — Relatively sprawly.
Each wave of development since has been less connected than the last, pushing today's score to 3.69. More disconnected than 65% of cities we track.
https://sprawlmap.org/trends/angola/huambo/huambo.html
SNDi: 3.69 — Relatively sprawly.
Each wave of development since has been less connected than the last, pushing today's score to 3.69. More disconnected than 65% of cities we track.
https://sprawlmap.org/trends/angola/huambo/huambo.html