Failed & Instructive
Six ways a smart-city project fails, one case each — ordered from the quietest to the loudest.
6 stops · 6 cities · 6 countries · 2012–2021 · 3 graded independent or peer-reviewed · 6 failed or scaled back
The most honest section of this site, arranged as a teaching path: one entry for each of the six ways things go wrong in this atlas. It runs from the failure nobody notices — a system that works perfectly and changes nothing — to the one the whole world watched being announced.
Read in order: every stop goes a step further than the last.
✔ Every published entry is checked against the public sources it cites before publication.
- 1 📡 ShotSpotter Acoustic Gunshot Detection 📉 The measurement worked and nothing followed. The city could hear the shots; what its own watchdog could not find was any effect on the cases that followed.
- 2 📡 City Data Exchange 🧪 The pilot never became a service. A marketplace for city data, built and staffed, closed after two years because too few would sell and too few would buy.
- 3 🚲 Aayalolo: Accra's BRT That Became a Quality Bus Service 🧩 Half a system. Ghana bought the buses and the contactless fare system, then cancelled the 9.1 km of dedicated lane that was the point.
- 4 📡 Mumbai Water Distribution Improvement Programme 📜 The contract decided it, not the technology. The contractor delivered 18.6% of the contract value by the deadline; the rest went to arbitration.
- 5 🏛️ Sidewalk Toronto (Quayside) ✋ People said no. The most heavily instrumented neighbourhood ever drawn was stopped by unresolved data-privacy questions before a single foundation was poured.
- 6 📡 The Line 🏗️ Announced far larger than built. A 170 km linear city became a 2.4 km first phase within three years — the correction was as public as the promise.
What this route shows
Only the last of these six failed at the technology. The other five failed at a consequence, a customer, a lane, a contract and a public — which is why the pattern repeats in cities that studied the previous case carefully.
This tour is one case per failure mode. The complete record — every entry in the atlas that failed or was scaled back, grouped by the way it went wrong — is on smart city project failures.