Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

Tehran Metro: History & Companies

Tehran Metro (Persian: متروی تهران, romanized: Metro-ye Tehrān) is a rapid transit system serving Tehran, the capital of Iran. It is the largest metro system in the Middle East. The system is owned and operated by Tehran Urban and Suburban Railway. It consists of six operational metro lines (and an additional commuter rail line), with construction under…

Language: English [EN]
Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.
100%
More settings
100% 100% 100% 100% 100%

Tehran Metro topic overview

The analysis highlights History and Companies as prominent areas in the source structure around Tehran Metro.

Related topics
75
Source areas
7
Connected nodes
82
Extracted relationships
48
Concept neighborhoods
31
Bridge connections
82

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

History · 29 topics
Lines · 18 topics
Overview · 10 topics
Gallery · 7 topics
Safety · 5 topics
Complaints · 4 topics
Tickets · 2 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Annual ridership
820 million (2018)
Began operation
7 March 1999; 27 years ago (1999-03-07)
Daily ridership
2.5 million
Locale
Tehran, Iran
Native name
متروی تهران
Number of lines
7 active lines

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

History

Lines

Safety

Complaints

Tickets

Gallery

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How Tehran Metro connects Entity context

The extracted context around Tehran Metro shows recurring relationship patterns in the source. For example, Tehran Metro → AndroidTehran Metro Application, Archived, English, Iranian RailwaysVideo Clip, March, May, Metro Map PDF Archived, Net, Persian, Tehran Metro Application, The Unofficial Homepage, UrbanRail, Wayback Machine Another extracted example is Tehran Metro → Escalators, Esfahani Metro Station, Former, Haghani Metro StationTehran Metro, Line, Metro DepotTehran Subway, Metro Line, Minister Mohammad Javad Zarif, San'at Metro Station, Suburban Railway, Tehran Metro Line, Tehran MetroTehran Metro Line, Vali-e-asr. Use these groups to spot repeated connection types before inspecting the individual relationships.

Tehran Metro

Top relations

related to External links · 13
Tehran Metro → AndroidTehran Metro Application, Archived, English, Iranian RailwaysVideo Clip, March, May, Metro Map PDF Archived, Net, Persian, Tehran Metro Application, The Unofficial Homepage, UrbanRail, Wayback Machine
related to Gallery · 13
Tehran Metro → Escalators, Esfahani Metro Station, Former, Haghani Metro StationTehran Metro, Line, Metro DepotTehran Subway, Metro Line, Minister Mohammad Javad Zarif, San'at Metro Station, Suburban Railway, Tehran Metro Line, Tehran MetroTehran Metro Line, Vali-e-asr
see also · 4
Tehran Metro → Bus Rapid TransitTehran MonorailTrolleybuses, IranList, List, TehranTransport
Annual ridership · 1
Tehran Metro → 820 million (2018)
Began operation · 1
Tehran Metro → 7 March 1999; 27 years ago (1999-03-07)
Daily ridership · 1
Tehran Metro → 2.5 million
Locale · 1
Tehran Metro → Tehran, Iran
Native name · 1
Tehran Metro → متروی تهران
Number of lines · 1
Tehran Metro → 7 active lines
Number of stations · 1
Tehran Metro → 163 (total)

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

line metro tehran stations system mi station construction lines iran km extension company new opened coloured passengers ticket iranian network

Tehran Metro relationships Subject–Predicate–Object triples

TTTA extracted 48 structured relationships around Tehran Metro. Examples in this analysis include Tehran Metro → Annual ridership → 820 million (2018) and Tehran Metro → Began operation → 7 March 1999; 27 years ago (1999-03-07). The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Tehran MetroAnnual ridership820 million (2018)1.00infobox
Tehran MetroBegan operation7 March 1999; 27 years ago (1999-03-07)1.00infobox
Tehran MetroDaily ridership2.5 million1.00infobox
Tehran MetroLocaleTehran, Iran1.00infobox
Tehran MetroNative nameمتروی تهران1.00infobox
Tehran MetroNumber of lines7 active lines1.00infobox
Tehran MetroNumber of stations163 (total)1.00infobox
Tehran MetroNumber of vehicles1,5141.00infobox
Tehran MetroOperator(s)Tehran Urban and Suburban Railway Company (TUSRC)1.00infobox
Tehran MetroSystem length310 km (190 mi) (total)1.00infobox
Tehran MetroTrack gauge1,435 mm (.mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output…1.00infobox
Tehran MetroTransit typeRapid transit/metro (Lines 1–4, 6–7) Commuter rail (Lines 5 and 1)1.00infobox
Tehran MetroWebsitemetro.tehran.ir1.00infobox

Related concept clusters Concept neighborhoods

The concept neighborhoods around Tehran Metro bring nearby vocabulary together. In this analysis, examples include Tehran, Line and System. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Tehran Metro
    • Tehran
    • Line
    • System
    • Iranian
    • Station
    • Company
    • Iran
    • Mi
    • Km
    • Map
    • First
    • Passengers
  • tehran metro
    • Tehran
    • Line
    • System
    • Station
    • Company
    • Iranian
    • Network
    • Passengers
    • Iran
    • Mi
    • Km
    • Map
  • tehran
    • Line
    • Iranian
    • Station
    • Company
    • Mi
    • Km
    • Map
    • First
    • Passengers
    • Lines
    • Express
    • Made
  • iran
    • Iranian
    • Network
    • Tehran
    • Railway
    • Map
    • Metro
    • Company
    • System
    • Station
    • Commuter
    • Construction
    • Express
  • commuter rail
    • Total
    • Lines
    • Express
    • Railway
    • East
    • Map
    • Urban
    • First
    • Network
    • Construction
    • Imam
    • Iranian
  • iranian toman
    • Company
    • Railway
    • Tehran
    • Map
    • Urban
    • March
    • Network
    • Metro
    • System
    • Express
    • May
    • First
  • vardavard metro station
    • Tehran
    • System
    • Station
    • Line
    • Coloured
    • Company
    • Network
    • Iranian
    • Passengers
    • Iran
    • Stations
    • Map
  • iranian revolution
    • Company
    • Railway
    • Tehran
    • Map
    • Urban
    • March
    • Network
    • Metro
    • System
    • Express
    • May
    • First

Connections between topic areas Semantic bridges

For Tehran Metro, one of the stronger structural bridges in this analysis connects Tehran Metro with History. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
Tehran MetroHistory · splits 53 ⟂ 30
Tehran MetroLines · splits 64 ⟂ 19
Tehran MetroOverview · splits 72 ⟂ 11
Tehran MetroGallery · splits 75 ⟂ 8
Tehran MetroSafety · splits 77 ⟂ 6
Tehran MetroComplaints · splits 78 ⟂ 5
Tehran MetroTickets · splits 80 ⟂ 3

Map overview Semantic statistics

Tehran Metro

Nodes83
Edges82
Triples48
Avg. degree1.98
Density0.024096
Components1

Source & methodology

TTTA analyzes the structure around Tehran Metro to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History & Companies, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Tehran Metro · EN edition · Analysis: TopicsToTalkAbout

For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.