Research any topic before you write.

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

RER NG

The RER NG (French: RER Nouvelle Génération, lit. 'RER New Generation'), also known as the X'Trapolis Cityduplex and classified as Class Z 58000 and Class Z 58500, is a double-deck, dual-voltage electric multiple unit trainset operating on line D and line E of the Réseau Express Régional (RER), a hybrid suburban commuter and rapid transit system serving…

History & Measurement

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around RER NG. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Key facts & relationships

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

Acceleration
6 cars: 1.18 m/s2 (3.9 ft/s2) · 7 cars: 1.04 m/s2 (3.4 ft/s2)
Braking system
Electrodynamic regenerative brake
Capacity
6 cars: 1,563 passengers · 7 cars: 1,861 passengers
Car body construction
Stainless steel
Constructed
2018–present
Coupling system
Scharfenberg-type, made by Dellner

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

History

Description

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.

Map overview Semantic statistics

RER NG

Nodes40
Edges39
Triples49
Avg. degree1.95
Density0.05
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

RER NG

Top relations

Depots · 4
RER NG → Joncherolles, Nanterre, Noisy-le-Sec, Villeneuve
Electric systems · 3
RER NG → 1,500 V DC⟂, 25 kV 50 Hz AC⟂, Overhead line:
related to Description · 3
RER NG → Bombardier's Regio, The, The RER NG
Acceleration · 2
RER NG → 6 cars: 1.18 m/s2 (3.9 ft/s2), 7 cars: 1.04 m/s2 (3.4 ft/s2)
Capacity · 2
RER NG → 6 cars: 1,563 passengers, 7 cars: 1,861 passengers
Deceleration · 2
RER NG → Emergency: 1.25 m/s2 (4.1 ft/s2), Service: 1.15 m/s2 (3.8 ft/s2)
Formation · 2
RER NG → 6 cars per trainset (Z 58000), 7 cars per trainset (Z 58500)
Power output · 2
RER NG → On 1,500 V DC: 4,000 kW (5,400 hp), On 25 kV 50 Hz AC: 5,000 kW (6,700 hp)
Train length · 2
RER NG → 6 cars: 112 m (367 ft 5 in), 7 cars: 130 m (426 ft 6 in)
UIC classification · 2
RER NG → 6 cars: Bo′Bo′+Bo′Bo′+2′2′+2′2′+Bo′Bo′+Bo′Bo′, 7 cars: Bo′Bo′+Bo′Bo′+2′2′+2′2′+2′2′+Bo′Bo′+Bo′Bo′

Important terminology Word statistics

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

Important terminology

trainsets rer cars ng line alstom double-deck bombardier 58000 58500 class consortium two per ft x'trapolis sncf passengers trainset service

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
RER NGAcceleration6 cars: 1.18 m/s2 (3.9 ft/s2)1.00infobox
RER NGAcceleration7 cars: 1.04 m/s2 (3.4 ft/s2)1.00infobox
RER NGBraking systemElectrodynamic regenerative brake1.00infobox
RER NGCapacity6 cars: 1,563 passengers1.00infobox
RER NGCapacity7 cars: 1,861 passengers1.00infobox
RER NGCar body constructionStainless steel1.00infobox
RER NGConstructed2018–present1.00infobox
RER NGCoupling systemScharfenberg-type, made by Dellner1.00infobox
RER NGCurrent collectionPantograph1.00infobox
RER NGDecelerationService: 1.15 m/s2 (3.8 ft/s2)1.00infobox
RER NGDecelerationEmergency: 1.25 m/s2 (4.1 ft/s2)1.00infobox
RER NGDepotsJoncherolles1.00infobox
RER NGDepotsNanterre1.00infobox
RER NGDepotsNoisy-le-Sec1.00infobox
RER NGDepotsVilleneuve1.00infobox
RER NGDoors2 pairs per side, per car1.00infobox
RER NGElectric systemsOverhead line:1.00infobox
RER NGElectric systems25 kV 50 Hz AC⟂1.00infobox
RER NGElectric systems1,500 V DC⟂1.00infobox
RER NGEntered service13 November 20231.00infobox
RER NGFamily nameX'Trapolis1.00infobox
RER NGFleet numbersZ 58001/2 -1.00infobox
RER NGFormation6 cars per trainset (Z 58000)1.00infobox
RER NGFormation7 cars per trainset (Z 58500)1.00infobox
RER NGHVACRefrigeration and in-train heater1.00infobox
RER NGIn service2023–present1.00infobox
RER NGManufacturerAlstom1.00infobox
RER NGMaximum speed140 km/h (87 mph)1.00infobox
RER NGMultiple workingWithin type1.00infobox
RER NGNumber in service121 (10/08/2026)1.00infobox

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.