Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
a running train
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a running train" is correct and can be used in written English.
It refers to a train that is currently in motion. Example: As I stood on the platform, I saw a running train approach the station, its loud whistle echoing through the air.
✓ Grammatically correct
Science
News & Media
Alternative expressions(1)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
6 human-written examples
He then turned to Brenda Clifford at JBI, a Long Beach firm that has designed many of Mr. Carmack's themed McDonald's restaurants, like one with a running train inside in Buena Park, near the Knott's Berry Farm amusement park, and a '50s-style drive-in in La Verne, a nod to Route 66.
News & Media
The paper exemplifies the restricted speed estimation for a running train with respect to the obstacle on the track ahead.
Overall, deck stiffness was the most important factor determining a bridge's dynamic response under a running train and thus controlled the noise levels radiated by the structures.
Train partition is a fault scenario where the coaches of a running train decouples, resulting in multiple parts of the same train.
In the system of sound radiation induced by bridge vibrations under a running train, the bridge was coupled with both the track structure and the surrounding air fluid.
In this paper, we focus on the max-dmin MIMO precoder in the presence of a specific impulsive noise, whose model was obtained thanks to measurements on the antenna dedicated to Global System for Mobile Communications-Railways (GSM-R) situated on the roof of a running train.
Human-verified similar examples from authoritative sources
Similar Expressions
53 human-written examples
Polar's baked its training functionality into the wrist-worn wearable, including a running training plan designed to help users get ready for a number of different races from 5Ks to marathons, designed for different fitness levels.
News & Media
Passionate about running, put on a running training camp for aspiring young runners.
News & Media
Objective checking of the competence of 207 candidates regarding how they perform 46 different clinical skills is not obtainable in a running training enterprise.
Science
The running train was a linear induction motor train with four-car marshaling and running speed 70 90 km/h.
A new operator has started running train services across the eastern counties.
News & Media
Expert writing Tips
Best practice
When describing dynamic systems or processes, use "a running train" to vividly illustrate ongoing action or momentum, whether literal or figurative. For example, describing a project 'like "a running train"' conveys its unstoppable progress.
Common error
Avoid using "a running train" when you intend to describe a chaotic or out-of-control situation, as it implies controlled movement, not necessarily disarray. Consider alternatives like "a runaway train" in such contexts.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a running train" primarily functions as a descriptive phrase, using the adjective "running" to modify the noun "train". It indicates a train that is currently in operation or motion. Ludwig AI confirms its grammatical correctness.
Frequent in
Science
50%
News & Media
50%
Formal & Business
0%
Less common in
Wiki
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "a running train" is a grammatically sound and readily understood descriptor used to indicate a train that is in motion. Ludwig AI confirms its correctness and provides real-world examples of its usage. While not exceedingly common, the phrase appears in both scientific and news-related contexts, making it appropriate for a variety of communication needs. When using the phrase, consider whether alternatives like "a moving train" or "a train in motion" might better suit your intended nuance.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
a moving train
Focuses on the action of movement, similar to running.
an operating train
Emphasizes the functionality and active service of the train.
a train in motion
More explicitly states the train's state of being in movement.
a train that is running
Expands on the original phrase, adding slight emphasis.
a traveling train
Highlights the act of traveling or journeying.
a train underway
Indicates that the train has commenced its journey.
a locomotive in service
Refers to the train's function within a transportation system.
a train on the tracks
Focuses on the train's location and readiness for movement.
a train en route
Indicates that the train is on its designated path.
an active train
Highlights the train's active status and operational use.
FAQs
How can I use "a running train" in a sentence?
You can use "a running train" to describe a train that is currently in motion, such as, "As I waited, I saw "a running train" speeding past the station."
What phrases are similar to "a running train"?
Similar phrases include "a moving train", "a train in motion", or "an operating train", all indicating that the train is actively running.
Is it correct to say "a running train" or should I use another phrase?
The phrase "a running train" is grammatically correct and widely understood. However, you can choose alternative phrases like "a traveling train" or "a train underway" for variety.
What's the difference between "a running train" and "a stationary train"?
"A running train" indicates a train that is in motion, actively traveling along the tracks, while "a stationary train" refers to a train that is not moving and is at rest.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested