高峰期
Peak hour is the time of day when the most people are traveling or working.
Explanation at your level:
Peak hour is a busy time. Many people go to work or school at the same time. The roads are full of cars. You should try to avoid this time if you want to travel fast. It is like a big crowd of people all moving at once.
Peak hour is when traffic is very heavy. It usually happens in the morning and the evening. If you drive during peak hour, you will be slow. Many shops and restaurants also have peak hours when they are full of customers.
In cities, peak hour refers to the periods of highest traffic congestion. Most commuters experience this twice a day. It is often a good idea to plan your trips outside of peak hours to save time. Businesses also use this term to describe their busiest times of service.
The term peak hour is widely used to describe periods of maximum demand. Whether you are discussing road congestion, electricity consumption, or customer service wait times, it highlights the moment when resources are most stretched. Understanding these patterns is essential for effective time management and logistical planning.
Peak hour serves as a critical metric in urban planning and resource allocation. It identifies the temporal threshold where system capacity is tested by high demand. Beyond literal traffic, it is frequently used in metaphorical contexts to describe any period of extreme intensity or high-volume activity within a system or organization.
Etymologically rooted in the concept of a summit, peak hour represents the zenith of activity within a cyclical timeframe. In advanced discourse, it denotes the inflection point of usage patterns. Whether analyzing the socio-economic impacts of commuting or the logistical challenges of peak-demand energy grids, the term encapsulates the intersection of human behavior and systematic capacity.
Word in 30 Seconds
- Peak hour is a time of high activity or traffic.
- It usually happens in the morning and evening.
- It is a countable noun.
- Use 'during' or 'at' with this phrase.
Have you ever been stuck in a massive traffic jam on your way to school or work? That is exactly what we call peak hour! It represents the time of day when the roads, public transport, or even shops are at their absolute busiest.
Think of it as the rush hour. In most cities, this happens twice a day: once in the morning when people head to work, and again in the late afternoon when everyone is heading home. It is a universal experience for anyone living in a busy area.
Beyond just traffic, businesses use this term too. A popular cafe might have a peak hour during the lunch rush, meaning they are serving the most customers at that time. It is all about when the action is at its highest point!
The word peak comes from the old English word peke, which referred to a pointed end or the top of a mountain. It is quite a poetic way to describe a busy time, isn't it? It suggests that activity rises to a sharp point, like a mountain peak, before settling back down.
The specific phrase peak hour began to gain traction in the early 20th century as urban populations exploded. As cities grew larger, the synchronized movement of workers created predictable patterns of congestion. Engineers and city planners needed a term to describe these high-traffic cycles to manage infrastructure.
Interestingly, while rush hour is a more common term in casual American English, peak hour is often preferred in technical, business, and transportation contexts. It sounds slightly more professional and analytical, which is why you will see it in reports about power usage or internet bandwidth as well.
Using peak hour correctly is all about context. You will most often hear it used in transportation, such as 'avoiding peak hour traffic' or 'traveling outside of peak hours.' It is very common in news reports and travel advisories.
When you talk about businesses, you might say 'during peak hours' to describe when a store is packed. It is a neutral term that works well in both professional and everyday conversations. However, if you are talking to a friend, you might just say 'rush hour' instead.
Remember that it is usually used as a compound noun. You can say 'peak-hour travel' (with a hyphen) when using it as an adjective to describe something else. It is a very versatile phrase that helps people manage their time more efficiently by avoiding the busiest moments.
While peak hour is a literal term, it is related to many idioms about being busy:
- Beat the rush: To leave early to avoid the crowds.
- Bumper-to-bumper: Describes traffic during peak hour where cars are very close.
- The daily grind: The repetitive nature of commuting during peak hours.
- At the height of: Used to describe the most intense moment of an event.
- In full swing: When an activity is at its most active point.
These expressions help paint a picture of the stress and intensity that people often feel when they are caught in the middle of a busy period. They are great for adding flavor to your stories about your daily commute!
Grammatically, peak hour is a countable noun. You can say 'the morning peak hour' or 'during peak hours' (plural) when referring to multiple periods across different days. It is standard to use the definite article 'the' when referring to a specific instance.
Pronunciation is straightforward. The IPA is /piːk ˈaʊər/. The 'peak' part sounds like the top of a mountain, and 'hour' rhymes with 'sour.' Stress the first syllable of 'peak' and keep the rhythm flowing.
It rhymes with words like 'seek power' or 'meek flower' (if you say them quickly!). Practice saying it as one fluid unit rather than two separate words. This will make you sound much more like a native speaker when you talk about your commute.
Fun Fact
The term was adopted by transport engineers to manage city flow.
Pronunciation Guide
Crisp 'k' sound, clear 'hour'
Slightly stronger 'r' at the end
Common Errors
- Pronouncing 'peak' as 'pick'
- Dropping the 'k' sound
- Confusing 'hour' with 'our'
Rhymes With
Difficulty Rating
Easy to read
Simple to use in sentences
Common in daily speech
Easy to hear
What to Learn Next
Prerequisites
Learn Next
Advanced
Grammar to Know
Compound Nouns
Peak hour
Prepositions of Time
During peak hour
Articles with Nouns
The peak hour
Examples by Level
The road is busy at peak hour.
Road = street
Use 'at' for time
I do not like peak hour.
Like = enjoy
Simple sentence
Is it peak hour now?
Now = this time
Question form
The train is full at peak hour.
Full = no seats
Adjective usage
We leave after peak hour.
Leave = go
Preposition usage
Peak hour is very long.
Long = takes time
Subject-verb
Avoid the peak hour.
Avoid = stay away
Imperative
I hate peak hour traffic.
Hate = dislike
Noun modifier
The buses are always crowded during peak hour.
Try to travel before the peak hour starts.
Peak hour traffic makes me late for work.
Many people dislike the morning peak hour.
The restaurant is quiet after peak hour.
Is there a lot of traffic at peak hour?
I prefer to drive outside of peak hour.
Peak hour usually lasts for two hours.
We should leave early to avoid the worst of the peak hour traffic.
The power company charges more during peak hours.
Public transport is much more expensive during peak hour.
The café is always packed during the lunch peak hour.
Most commuters have to deal with peak hour every single day.
The city is planning new roads to reduce peak hour congestion.
I try to schedule my meetings outside of peak hour.
Peak hour can be very stressful for new drivers.
The implementation of congestion pricing has significantly reduced peak hour traffic in the city center.
Utility companies often encourage users to shift their energy consumption away from peak hours.
During peak hour, the subway system operates at maximum capacity to handle the influx of passengers.
The logistics team analyzed the data to determine the peak hour for deliveries.
It is advisable to check the traffic report before heading out during peak hour.
The peak hour for internet usage typically occurs in the early evening.
By adjusting our working hours, we can avoid the daily peak hour commute.
The peak hour demand for the service exceeded our initial projections.
The infrastructure is struggling to cope with the surge in volume during the morning peak hour.
Strategic scheduling of maintenance can mitigate the impact on peak hour operations.
The phenomenon of peak hour congestion is a byproduct of urban centralization.
We observed a significant shift in peak hour patterns following the transition to remote work.
The system is designed to handle fluctuations, but peak hour remains a challenge.
Analysts are studying the correlation between peak hour traffic and air quality.
The peak hour bottleneck causes ripple effects throughout the entire transport network.
Optimizing flow during peak hour is the primary objective of the new traffic management system.
The temporal distribution of commuters creates a distinct peak hour that dictates the rhythm of urban life.
In the context of electrical grid management, the peak hour represents the most critical window for load balancing.
The socio-economic implications of peak hour transit are profound, affecting both productivity and quality of life.
Urban planners must reconcile the necessity of peak hour efficiency with long-term sustainability goals.
The volatility of demand during the peak hour necessitates robust contingency planning.
Historical data reveals a gradual expansion of the peak hour duration over the last decade.
The peak hour serves as a barometer for the overall functionality of the city's transport arteries.
Mitigating the intensity of the peak hour requires a multifaceted approach involving policy and technology.
Common Collocations
Idioms & Expressions
"beat the rush"
Leave early to avoid crowds
Let's leave at 6 to beat the rush.
casual"in the thick of it"
In the middle of the busiest part
We were in the thick of it during the sale.
casual"at the height of"
At the most intense time
At the height of the season, it's crowded.
neutral"full swing"
Working at full capacity
The project is in full swing now.
neutral"rush off one's feet"
Very busy
I've been rushed off my feet all day.
casual"crunch time"
A critical period of pressure
It's crunch time for the project.
casualEasily Confused
Homophone
Peek is to look quickly; Peak is a top.
Take a peek at the peak.
Synonym
Rush hour is more casual.
I'm stuck in rush hour.
Part of the phrase
Peak is the noun/verb; peak hour is the specific time.
The mountain peak is high.
Antonym
Off-peak is the opposite time.
Travel off-peak to save money.
Sentence Patterns
The [noun] is busy during peak hour.
The road is busy during peak hour.
Avoid [noun] during peak hour.
Avoid the highway during peak hour.
Peak hour occurs at [time].
Peak hour occurs at 8 AM.
It is best to travel outside of peak hour.
It is best to travel outside of peak hour.
The peak hour demand is [adjective].
The peak hour demand is high.
Word Family
Nouns
Verbs
Adjectives
Related
How to Use It
8/10
Formality Scale
Common Mistakes
You cannot 'peak hour' something; it is a time, not an action.
We usually use 'during' for time periods.
If talking about the concept generally, use the plural.
They sound the same but have different meanings.
It describes when, not where.
Tips
Mountain Visual
Imagine a mountain; the top is the peak hour.
Traffic Reports
Listen to radio traffic reports to hear it used.
Global Term
It is understood everywhere in the English-speaking world.
Hyphen Rule
Use a hyphen before a noun.
Clear Vowels
Make sure 'peak' is long.
Don't say 'in peak hour'
Use 'during' instead.
Energy Peak
Power companies also have peak hours.
Contextualize
Write sentences about your own commute.
Rhyme Practice
Rhyme it with 'seek power'.
Professionalism
Use 'peak hour' in emails instead of 'rush hour'.
Memorize It
Mnemonic
PEAK = People Eating At Kitchens (at lunch peak hour)
Visual Association
A mountain peak with a car at the very top.
Word Web
Challenge
Try to say 'peak hour' 5 times fast!
Word Origin
English
Original meaning: Pointed top of a mountain
Cultural Context
None, it is a standard neutral term.
Very common in UK, US, and Australia for traffic reports.
Practice in Real Life
Real-World Contexts
Commuting
- Avoid peak hour
- Heavy traffic
- Commuter train
Business
- Peak hour sales
- Lunch rush
- Customer volume
Energy
- Peak hour usage
- Grid load
- Energy saving
Travel
- Off-peak tickets
- Travel time
- Peak season
Conversation Starters
"What time is the peak hour in your city?"
"Do you prefer to travel during peak hour or off-peak?"
"How do you avoid the traffic during peak hour?"
"Does your workplace have a busy peak hour?"
"What is the best way to spend time during a long commute?"
Journal Prompts
Describe your daily commute and the traffic you see.
If you could change the peak hour in your city, how would you do it?
Write about a time you were stuck in a bad traffic jam.
How does the time of day affect your productivity?
Frequently Asked Questions
8 questionsNo, it applies to trains, buses, and even internet traffic.
Yes, it is very common.
It is usually a window of 1-2 hours.
No, it is two words.
Only if used as an adjective (e.g., peak-hour traffic).
Yes, they are synonyms.
Because activity is at its highest point.
Yes, stores have peak hours too.
Test Yourself
The road is very ___ at peak hour.
Peak hour means lots of traffic.
What is peak hour?
It is a time of high activity.
Peak hour is always at night.
It usually happens during morning and evening commutes.
Word
Meaning
These are opposites.
Traffic is bad peak hour.
Score: /5
Summary
Peak hour is simply the busiest time of the day, so plan accordingly to save your time!
- Peak hour is a time of high activity or traffic.
- It usually happens in the morning and evening.
- It is a countable noun.
- Use 'during' or 'at' with this phrase.
Mountain Visual
Imagine a mountain; the top is the peak hour.
Traffic Reports
Listen to radio traffic reports to hear it used.
Global Term
It is understood everywhere in the English-speaking world.
Hyphen Rule
Use a hyphen before a noun.
Example
避免在高峰期出行。
