contraflow: meaning, definition, pronunciation and examples
C1Formal / Technical
Quick answer
What does “contraflow” mean?
a temporary traffic system on a multi-lane road where some lanes are reversed to allow traffic to flow in the opposite direction, typically to manage congestion or roadworks.
Audio
Pronunciation
Definition
Meaning and Definition
a temporary traffic system on a multi-lane road where some lanes are reversed to allow traffic to flow in the opposite direction, typically to manage congestion or roadworks.
By extension, any system where a flow (e.g., of people, data, or materials) is intentionally redirected to run counter to its usual direction within a shared channel or space.
Dialectal Variation
British vs American Usage
Differences
In the UK, 'contraflow' is the standard term for this traffic arrangement. In the US, the more common term is 'counterflow' or the descriptive phrase 'reversible lanes', though 'contraflow' is understood in technical contexts.
Connotations
In the UK, it strongly connotes roadworks, temporary diversions, and potential delays. In the US, its rarer use gives it a more purely technical feel.
Frequency
High frequency in UK media during roadwork seasons; low-to-medium frequency in US technical or planning documents.
Grammar
How to Use “contraflow” in a Sentence
A contraflow is in operation on [Road Name].Drivers face a contraflow on [Location].Vocabulary
Collocations
Examples
Examples of “contraflow” in a Sentence
verb
British English
- The road will be contraflowed for six months during the bridge repairs.
American English
- The highway department plans to contraflow the southbound lanes to ease congestion.
adverb
British English
- [Not used adverbially]
American English
- [Not used adverbially]
adjective
British English
- Drivers should follow the contraflow signage carefully.
- We're in the contraflow lane now.
American English
- Counterflow lane operations require extensive signage.
- The contraflow configuration begins at milepost 22.
Usage
Meaning in Context
Business
Rare. Might be used in logistics planning for warehouse flow.
Academic
Used in transport engineering, urban planning, and traffic studies.
Everyday
Common in UK driving contexts, especially in traffic news: 'There's a contraflow on the M1.'
Technical
Precise term in highway design and traffic incident management manuals.
Vocabulary
Synonyms of “contraflow”
Vocabulary
Antonyms of “contraflow”
Watch out
Common Mistakes When Using “contraflow”
- Using 'contraflow' to mean any traffic jam or road closure (it's specific to lane reversal).
- Spelling as 'counterflow' in UK contexts.
FAQ
Frequently Asked Questions
No, while most common for vehicular traffic, it can apply to cycle lanes or even pedestrian flows in large events.
A diversion reroutes traffic onto different roads. A contraflow keeps traffic on the same road but reverses the direction of some lanes.
Yes, when properly signposted and separated (usually by concrete barriers), it is a standard and safe traffic management technique.
Yes, in technical and planning contexts (e.g., 'to contraflow a lane'), but the noun form is far more common.
a temporary traffic system on a multi-lane road where some lanes are reversed to allow traffic to flow in the opposite direction, typically to manage congestion or roadworks.
Contraflow is usually formal / technical in register.
Contraflow: in British English it is pronounced /ˈkɒn.trə.fləʊ/, and in American English it is pronounced /ˈkɑːn.trə.floʊ/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[No common idioms]”
Learning
Memory Aids
Mnemonic
Think of CONTRA meaning 'against' and FLOW meaning 'traffic flow'. It's a flow going against the usual direction.
Conceptual Metaphor
TRAFFIC IS A RIVER: A 'contraflow' is like temporarily reversing the current in one channel of the river.
Practice
Quiz
What is the primary context for the word 'contraflow'?