Tallinn

Original stage labels are preserved. Unverified patterns are research audit entries, not deployments.

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# Tallinn — SCD City Research v0.2.3
**Status:** provisional; not yet imported or published · 11 October 2026
**Entity:** municipality; parent: Tallinn City
**Boundary:** Administrative Tallinn City, not Harju County, the whole nation of Estonia, or a university testbed outside municipal service.
**Provisional result:** 2B — provisional, city-twin domain conditional; Type **13.75**, Autonomy **6.88**.

## Source audit
11 discovered candidate URLs: 4 examined/accepted, 0 examined/rejected, 6 inaccessible, 1 unexamined; 3 publisher families among examined accepted records. The count excludes reprints as separate publisher origins. Open/search snippets are not treated as source examination.

## Key conclusion
Provisional 2B based on independently operating city-scale transport forecasting and conditional planning digital twin simulations. Citywide advanced autonomous operational action in two domains is not demonstrated; AI twin assistant is a prototype and 403 municipal signals are ordinary managed infrastructure.

## Exact quantitative methodology
The eight frozen domains each carry weight 0.125. Each qualified operating deployment must have c>=0.60 and g=1. Coverage coefficients: P .15, D .35, N .65, W 1.00. Type = 100×sum_d(0.125×max_i(g_i×c_i×T_i/3)); Autonomy = 100×sum_d(0.125×max_i(g_i×c_i×A_i/3)). Type 2 requires total >=10 and two independently qualified T>=2 domains; Level C requires >=10 and two independently qualified domains with real, independently selected closed-loop A>=2 actions at N/W scope. Display values round half up.

## Eight-domain scoring
|Domain|Type winner|T|c|g|Type pts|Autonomy winner|A|c|Autonomy pts|
|---|---|---:|---:|---:|---:|---|---:|---:|---:|
|MOB|TECH-001|2|1|1|8.3333|TECH-001|1|1|4.1667|
|ENG|No eligible source|?|—|0|0.0000|—|?|—|0.0000|
|WAT|No eligible source|?|—|0|0.0000|—|?|—|0.0000|
|BLD|No eligible source|?|—|0|0.0000|—|?|—|0.0000|
|SAF|No eligible source|?|—|0|0.0000|—|?|—|0.0000|
|ENV|No eligible source|?|—|0|0.0000|—|?|—|0.0000|
|GOV|TECH-002|2|.65|1|5.4167|TECH-002|1|.65|2.7083|
|HLT|No eligible source|?|—|0|0.0000|—|?|—|0.0000|
|**TOTAL**| | | | |**13.75**| | | |**6.88**|

## Technology inventory and admissibility
### TECH-001: Tallinn operating multimodal forecasting / transport planning system
- **Domain:** MOB; T=2; A=1; c=1; g=1; W coverage; status: operating used in municipal service planning.
- **Territory and reach:** Municipal planning model used for public transport restructuring across Tallinn city districts; not a short-term pilot.
- **Authority:** Model simulates impact of route/service decisions; officials choose service plans after consultation.
- **Included/excluded rationale:** Citywide geographic model and consequential service planning. Human approval remains.
- **Supporting original source IDs:** SRC-001;SRC-002
### TECH-002: Tallinn 3D planning twin with specialist analytical simulations
- **Domain:** GOV; T=2; A=1; c=.65; g=1; N coverage; status: operating base twin; advanced analytics coverage conditional.
- **Territory and reach:** 3D model extends citywide; real data integrations but evidence of routine predictive use in multiple departments is limited.
- **Authority:** Planning and architectural specialists use shadow/spatial/environmental scenario modeling; humans decide real policies.
- **Included/excluded rationale:** N and T2 conditional on real specialist scenario evaluation and planning use, not solely static 3D visualization. Review notes from HCI show sparse everyday adoption.
- **Supporting original source IDs:** SRC-004;SRC-005;SRC-007
### TECH-003: Municipal roadway weather, car-count sensors and Tark Tallinn platform
- **Domain:** ENV; T=1; A=0; c=.65; g=0; N coverage; status: operating sensing platform; primary source partially inaccessible.
- **Territory and reach:** City records multiple road-weather stations, air quality stations and vehicle detectors distributed across urban area.
- **Authority:** Environmental/road sensors and public dashboards; citizens and staff act.
- **Included/excluded rationale:** g=0: environmental data source original could not be substantively retrieved; roadway counts belong in MOB, not ENV.
- **Supporting original source IDs:** SRC-001;SRC-009
### TECH-004: Tallinn traffic control signals and transport-priority devices
- **Domain:** MOB; T=1; A=0; c=1; g=1; W coverage; status: operating roadway service.
- **Territory and reach:** 403 intersections, 653 roadway sensors; public transport priority at 49 intersections (2024).
- **Authority:** Traffic managers supervise coordinated signals; priority signal devices use preset rules.
- **Included/excluded rationale:** Transport model MOB T2 winner; fixed-rule priority not A2.
- **Supporting original source IDs:** SRC-001
### TECH-005: Tallinn digital municipal services
- **Domain:** GOV; T=1; A=0; c=1; g=1; W coverage; status: operating citizen services.
- **Territory and reach:** 510 public services reported in 2024; not all digital/end-to-end, no verified transaction share.
- **Authority:** E-services with human or rule-based administrative processing.
- **Included/excluded rationale:** Same GOV weighted bucket as city planning twin; if twin fails T2, GOV baseline T1 replaces it.
- **Supporting original source IDs:** SRC-001
### TECH-006: 2026 AI-enabled natural-language twin interface
- **Domain:** GOV; T=2; A=1; c=.15; g=0; P coverage; status: prototype/research.
- **Territory and reach:** Proof-of-concept tested with small user group; project planned wider integration.
- **Authority:** Researchers tested prompt-driven access to planning data; no production civil-service rollout.
- **Included/excluded rationale:** g=0: no scale gate.
- **Supporting original source IDs:** SRC-006
### TECH-007: 2025–2028 citywide adaptive signal rollout
- **Domain:** MOB; T=2; A=2; c=.15; g=0; P coverage; status: development/pilot phase.
- **Territory and reach:** City is conducting preparatory work and future testing; existing two adaptive systems are not citywide.
- **Authority:** Future automatic strategy selection not verified in production.
- **Included/excluded rationale:** g=0 for 2026 2C claims.
- **Supporting original source IDs:** SRC-008
### TECH-008: Public-transport AI-camera violations trials
- **Domain:** SAF; T=2; A=1; c=.15; g=0; P coverage; status: two-bus pilot.
- **Territory and reach:** Small 2024 trial on two buses and later pilots.
- **Authority:** Computer vision captures violations to staff; no automatic enforcement eligibility.
- **Included/excluded rationale:** g=0.
- **Supporting original source IDs:** SRC-008

## Autonomy C/D test
No verified independently selected operational actions in two material service domains. Citywide/model-based advice, AI speech recognition, surveillance flags, rule-based pump or traffic-priority actuations, and local research prototypes are not automatically A2. See `autonomy_operating_test.csv`.

## Geographic and historical exclusions
Administrative Tallinn City, not Harju County, the whole nation of Estonia, or a university testbed outside municipal service. Operational, trial, announced, discontinued and unverified installations are tracked separately. The 21 descriptive domains do not create additional weighted credit.

## Sensitivity / next-higher classification
Tallinn 2B depends on the planning twin providing eligible T2 analytics across a material N urban planning service scope. University researchers report that many municipal employees use only basic functions; if audited operating analytics lack this N scale, GOV reverts to T1 and the two-domain Type 2 gate fails, yielding 1B or Type ? rather than silently forcing 2B. The 2026 natural-language AI twin and citywide dynamic traffic program are development/pilots and do not elevate Level C.

## Source register (original URLs)
- **SRC-001** [Facts of Tallinn 2024 official report](https://files.tallinn.ee/live/s3fs-public/inline-files/TallinnaFaktid-2024-ENG_veeb.pdf) — City of Tallinn; `examined_accepted`; City has 403 signalized intersections, 653 detector sensors, two adaptive signal solutions; 510 public services. Historic snapshot only.
- **SRC-002** [2024/2026 public transport network update based on multimodal transport model](https://www.tallinn.ee/en/uusliinivork) — City of Tallinn; `examined_accepted`; City says implemented service restructuring based on transport model and mobility data; human public consultation and authority remain.
- **SRC-003** [Detailed permanent predictive urban transport model](https://www.tallinn.ee/en/news/tallinn-adopt-digital-transport-model) — City of Tallinn; `retrieval_inaccessible`; Search index says modeled 130,000 street sections, 51,450 nodes; actual original open blocked, supported indirectly by operational line-network page.
- **SRC-004** [City digital twin official description](https://www.tallinn.ee/en/digikaksik/tallinn-digital-twin) — City of Tallinn; `retrieval_inaccessible`; Search indexed sensors + 3D + simulations; original open blocked (403).
- **SRC-005** [City Model supports urban planning and simulation](https://www.tallinn.ee/en/tallinnovatsioon/tallinn-city-model) — City of Tallinn; `retrieval_inaccessible`; Search indexed use for sunlight/shadow, noise and air pollution analysis. Original open 403; conditional evidence only.
- **SRC-006** [Research team presented AI twin proof of concept](https://www.tlu.ee/en/dt/news/tallinn-university-researchers-presented-ai-assisted-digital-twin-concept-city-planning) — Tallinn University; `examined_accepted`; University confirms AI assistant is prototype/PoC; not actual production citywide service.
- **SRC-007** [Tallinn City Model compiled evidence with underlying operator references](https://1001smartcities.org/projects/tallinn-digital-twin/) — 1001 Smart Cities; `examined_accepted`; Secondary AI-generated aggregation not fully independently fact checked; supports existence of model, not operation-wide analytical usage.
- **SRC-008** [Dynamic traffic control project timeline 2025–2028](https://www.tallinn.ee/en/liikuvus/kompetentsikeskus) — City of Tallinn; `retrieval_inaccessible`; Indexed city says current citywide dynamic traffic management is project with pilots starting after 2025; not production citywide.
- **SRC-009** [Tark Tallinn public sensor platform](https://www.tallinn.ee/en/news/tark-tallinn-platform-displaying-key-data-open-public) — City of Tallinn; `retrieval_inaccessible`; Indexed five air stations and road weather sensors; original open 403; not scored as citywide intelligent forecast.
- **SRC-010** [2026 city-twin AI tool prototype details](https://hci.tlu.ee/tallinn-city-digital-twin-2025/) — Tallinn University HCI research group; `retrieval_inaccessible`; Original timed out; indexed reports twin rarely used in civil servants everyday work: warns against W GIS deployment ≠ broad use.
- **SRC-011** [Municipal BIM and permits pilots](https://www.tallinn.ee/en/internationalprojects/bim4gov) — FinEst Centre for Smart Cities / City of Tallinn; `discovered_not_examined`; Ongoing pilot planning and automated compliance aspirational: not awarded citywide Type 2.

## Editor checks before publication
- Verify the candidate N/W coverage numerator and denominator for each score-winning deployment; ask operators for current counts, use and operating continuity.
- Obtain independent operational decision/control evidence before Level C consideration.
- Confirm city vs district identity and avoid parent municipality or regional network score inflation.
- Keep this edition provisional and import without duplicate canonical records; publishing requires an explicit Sites-side action.