Writing Task 2 · Problem and solution

Urban traffic congestion: causes and potential solutions: IELTS Writing Task 2 sample answer

An IELTS Writing Task 2 problem and solution essay question with a Band 8 sample answer, the plan behind it, the vocabulary that lifts it and what an examiner looks for.
  • 268 words
  • Problem and solution
  • General Training
  • 40 minutes

The question

Traffic congestion in cities is becoming worse. What are the causes of this problem, and what solutions can you suggest?

About 40 minutes. Write at least 250 words.

Problem and solution

Plan before you write

  1. 1

    Your position

    The escalation of urban gridlock stems primarily from rapid population growth and insufficient public transport, which can be mitigated through infrastructure investment and urban planning policies.

  2. 2

    Paragraph 2

    The primary cause of increased congestion is the reliance on private vehicles due to inadequate public transit systems and rising urban populations.

  3. 3

    Paragraph 3

    Effective solutions involve enhancing public transport efficiency and implementing fiscal policies to discourage private vehicle use in city centres.

  • →Name one or two specific problems, not a general complaint.
  • →Match each solution to a problem and say who would carry it out.
  • →Keep problems and solutions in separate paragraphs so the structure is visible.

Model answer

Band 8 sample essay

Band 8268 words · use the structure and vocabulary, not the sentences

The density of traffic within major cities has reached critical levels, significantly impacting the quality of life for urban residents. This essay will examine the factors driving this trend, namely population expansion and over-reliance on cars, before proposing strategies such as improved public transport networks and restrictive urban policies.

The fundamental cause of worsening congestion is the combination of rapid urbanisation and the underdevelopment of public transit. As cities attract more people seeking employment, the volume of vehicles grows exponentially, yet infrastructure often remains static. Because public transport systems are frequently unreliable or overcrowded, commuters opt for the convenience of personal automobiles, which exacerbates road saturation. For instance, in many developing metropolises, the lack of an integrated subway network leaves the workforce with little choice but to rely on private cars, leading to gridlock during peak hours.

To address this, local authorities should prioritise the expansion of efficient, high-capacity public transportation. By investing in electric bus fleets or light rail systems, cities can provide a viable alternative to car ownership, thereby reducing the number of vehicles on the road. Furthermore, implementing congestion charging zones, where drivers pay a fee to enter busy areas, has proven effective in discouraging unnecessary car journeys. For example, London’s implementation of a congestion charge significantly reduced traffic volume and encouraged more residents to utilise cycling infrastructure and public buses.

In summary, the rise in traffic density is largely a consequence of systemic urban growth and a preference for private transport. By modernising public infrastructure and adopting disincentives for car usage, urban planners can alleviate these pressures and create more navigable, sustainable city environments.

Examiner's view

Why this scores Band 8

This essay achieves Band 8 by directly addressing both parts of the prompt with logical, well-supported arguments and advanced, natural vocabulary. A Band 6 response typically fails to provide specific, relevant examples or resorts to generic, repetitive language that lacks structural cohesion.

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8 words

Vocabulary from the essay

  • gridlock

    a situation where traffic is completely unable to move

  • exponentially

    becoming faster and greater by a very large amount

  • saturation

    the state of being full and unable to hold

  • metropolises

    very large and busy capital or chief cities

  • high-capacity

    designed to handle a large number of people

  • disincentives

    factors that discourage people from taking specific actions

  • alleviate

    to make a problem or suffering less severe

  • navigable

    easy to travel through or move around within

More words for this topic: IELTS vocabulary for society.

Frequently asked questions

What type of essay is "Urban traffic congestion: causes and potential solutions"?+

Problem and solution. Name one or two specific problems, not a general complaint.

How many words should an IELTS Writing Task 2 essay be?+

At least 250 words, in about 40 minutes. This sample is 268 words, written to fit that time with five minutes left to check grammar.

How is IELTS Writing Task 2 scored?+

On four criteria: task response, coherence and cohesion, vocabulary, and grammatical range and accuracy. Task 2 counts for twice as much as Task 1 in your Writing band.

What is the difference between a Band 6 and a Band 8 answer here?+

This essay achieves Band 8 by directly addressing both parts of the prompt with logical, well-supported arguments and advanced, natural vocabulary. A Band 6 response typically fails to provide specific, relevant examples or resorts to generic, repetitive language that lacks structural cohesion.

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