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
on passenger demand
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "on passenger demand" is correct and usable in written English.
It can be used to indicate that a service or action is contingent upon the requests or needs of passengers. Example: "The train schedule will be adjusted on passenger demand to better accommodate travelers."
✓ Grammatically correct
News & Media
Science
Alternative expressions(2)
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
3 human-written examples
But Mr. Kelly said the airline might not increase its flying capacity in 2009, depending on passenger demand.
News & Media
"For over 40 years, rail fares in Britain have been based on passenger demand and competitive factors rather than a simple mileage tariff," a spokesperson said.
News & Media
Thus, the purpose of the research is to identify and evaluate the key design parameters of checked baggage screening, and to develop an analytical model that will determine the optimal number of explosives detection system equipment based on passenger demand levels and security protocols.
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
But lack of passenger demand on the route soon made Roraima Airways drop it.
News & Media
The proposed DL approach is applied to the short-term forecasting of passenger demand under an on-demand ride service platform in Hangzhou, China.
Using a real case with 23 candidate baggage carousels at Incheon International Airport during 2013 2015, our experiments demonstrate the strength of the proposed methodology in planning appropriate capacity expansion that reflect the operational flow of passengers within the airport based on the future trend of passenger demand.
Firstly, the impacts of passenger demand and network traffic state on bus operational performance are analyzed.
Britain's first high-speed rail line was built on "hugely optimistic" forecasts for passenger demand that never materialised, leaving taxpayers exposed to billions in losses, according to the National Audit Office NAOO).
News & Media
The Asian airline Cathay Pacific Airways said its 2002 profit soared sixfold, beating analysts' expectations, on stronger passenger demand, increased cargo revenues and cost-cutting.
News & Media
The carrier, widely known for its thriftiness, pinned the loss on faltering passenger demand, particularly in business travel, during "the toughest revenue environment in our history," Gary C. Kelly, the company's chief executive, said in a statement.
News & Media
The base assumption is that only the mean and an upper bound on the passenger demand are known.
Expert writing Tips
Best practice
When planning transportation services, use "on passenger demand" to indicate that service adjustments are made to align with real-time or anticipated passenger levels.
Common error
Avoid using "on passenger demand" when you actually mean 'within the limits of passenger capacity'. Demand refers to the desire for a service, while capacity refers to the ability to provide it.
Source & Trust
84%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "on passenger demand" functions as an adverbial prepositional phrase, modifying a verb or clause to indicate the basis or condition upon which an action is taken. It describes that an action or service is contingent upon the level or type of passenger requests.
Frequent in
News & Media
33%
Science
33%
Formal & Business
0%
Less common in
Wiki
0%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
The phrase "on passenger demand" is a prepositional phrase indicating that a service, action, or adjustment is contingent upon the level or type of passenger requests. According to Ludwig, it is grammatically correct and usable in written English. Although not as frequent as other similar phrases, it finds common use in contexts like news reporting and scientific publications. The phrase communicates responsiveness to passenger needs, making it suitable for professional and neutral registers. Alternative phrases such as ""based on passenger volume"" or ""according to passenger needs"" can be used depending on the specific nuance you want to convey.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
based on passenger volume
Replaces 'demand' with 'volume', focusing on the numerical aspect of passenger traffic.
according to passenger needs
Shifts the focus from 'demand' to 'needs', emphasizing the requirements of passengers.
dependent on passenger traffic
Uses 'traffic' to represent the flow of passengers, implying demand.
in response to passenger requests
Highlights that actions are taken as a direct result of passenger requests.
driven by passenger interest
Emphasizes that passenger enthusiasm or desire is the motivating factor.
subject to passenger load
Indicates that something is conditional based on the number of passengers.
contingent on ridership levels
Uses 'ridership' to specify the number of passengers using a service.
as dictated by passenger flow
Implies that passenger movement patterns determine actions or decisions.
guided by passenger preferences
Focuses on passenger choices and tastes as the guiding principle.
determined by passenger uptake
Highlights the adoption or usage of a service by passengers as the deciding factor.
FAQs
What does "on passenger demand" mean?
The phrase "on passenger demand" indicates that something is provided or adjusted based on the level or type of requests from passengers. It signifies that services are responsive to passenger needs and preferences.
How can I use "on passenger demand" in a sentence?
You might say, "The airline adjusts its flight schedules "based on passenger volume"," or "The train frequency is increased "according to passenger needs" during peak hours."
Is "on passenger demand" formal or informal language?
The phrase "on passenger demand" is suitable for both formal and informal contexts. It's commonly used in transportation, logistics, and service industries.
Are there alternatives to "on passenger demand"?
Yes, you can use alternatives such as "based on passenger requests", ""according to passenger needs"", or "in response to passenger traffic" depending on the context.
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
84%
Authority and reliability
4.1/5
Expert rating
Real-world application tested