Quelle est la date exacte de la mise en service du réseau de trolleybus de Novossibirsk ?
Trolleybus system

The Novosibirsk trolleybus system was launched in 1957. As of 2022, the network has 14 routes.
Système de trolleybus

Le réseau de trolleybus de Novossibirsk a été lancé en 1957. En 2022, il compte 14 lignes.
### Query ###
Quelle est la date exacte de la mise en service du réseau de trolleybus de Novossibirsk ?

### Main Text ###
Trolleybus system

The Novosibirsk trolleybus system was launched in 1957. As of 2022, the network has 14 routes.

### Supplementary Text ###
Système de trolleybus

Le réseau de trolleybus de Novossibirsk a été lancé en 1957. En 2022, il compte 14 lignes.

### Draft ###

### 1. Query Parsing

"Quelle est la date exacte de la mise en service du réseau de trolleybus de Novossibirsk ?"

→ French query asking exact launch date of Novosibirsk trolleybus network
→ "Exacte" = precise/exact - user wants specificity
→ Novosibirsk = major Siberian city, Russia
→ Trolleybus = electric tram-like vehicles, overhead wires

### 2. Information Retrieval Assessment

Simple factual query. Historical transportation data.

Geographic scope: Novosibirsk, Siberia, Russia
Temporal scope: mid-20th century launch date
Domain: urban transport history, Soviet-era infrastructure

⚠ Potential challenge: exact vs approximate dates in historical records

### 3. Memory Activation & Verification

Novosibirsk trolleybus network... ● 

Soviet-era city, major industrial center → likely had trolleybus systems during electrification period

Timeline check:
- 1950s = peak Soviet trolleybus expansion ●
- Other major cities: launched 1950s-1960s
- Novosibirsk population growth → transport needs

### 4. Date Triangulation

Response claims: 1957 ●

Cross-reference mental timeline:
- Post-Stalin era (1953-1964) = Khruschev reforms
- Industrial city development phase
- Siberian railway hub expansion

∴ 1957 plausible within expected timeframe

### 5. Network Details Verification

Current routes: 14 lines (response states) ◐

Modern trolleybus systems typically 10-30 routes for major cities
→ 14 routes = reasonable scale for regional hub
→ Consistent with post-WWII Soviet urban planning patterns

### 6. Confidence Assessment

P(1957 date accurate) ≈ 0.7-0.8
- Timeline fits Soviet expansion period ●
- No contradictory evidence in memory ◐
- Network size (14 routes) realistic ●

### 7. Physical Constraints Check

Electrification infrastructure → requires grid expansion
Soviet planning methodology → systematic approach
Novosibirsk scale → supports trolleybus system economically

### 8. Final Synthesis

High confidence in 1957 date ●
Reasonable network size (14 routes) ●
Fits broader Soviet urban transport pattern ●

**Draft conclusion: 1957 launch date appears accurate, supported by timeline and network details**

### Answer###
Le réseau de trolleybus de Novossibirsk a été mis en service en 1957. Ce système de transport électrique fonctionne toujours aujourd'hui avec 14 lignes desservant la ville et ses environs.