IELTS Writing Task 1 – Two road tunnels

Continuing with a difficult and strange question has surprised many candidates in the past time. Take a look at the video and sample article right below.


The diagrams below give information about two road tunnels in two Australian cities. Summarize the information by selecting and reporting the main features and make comparisons where relevant.

essay writing two road tunnels in two Australian cities


Tunnel A:

depth: 25 meters, length 2.2 / kilometers (UK)

geological feature: mostly sand and stone

underneath a river, suspension bridge on it

built 1987 – 1992 (construction time 5 years)

556 million dollars

2 carriageways (way), total of 4 lanes

Tunnel B:

underneath an urban area with asphalt roads, high-rise buildings

2004 – 2007 (3 years)

1.1 billion (x2)

2 carriageways, 6 lanes (more)

Note: the topic is difficult, write 2 body paragraphs, deploy all the data and details => observe, summarize, write an overview at the end of the article


The provided images compare two different tunnels in two Australian cities.

specific about Tunnel A, at the depth of 25 meters underground, it is 2.2 kilometers long. Its location is below a river over which a suspension bridge is built. Print terms of geology, the soil in this area contains mostly sand and stone. The construction took 5 years from 1987 to 1992 to complete and cost 556 million dollars. Inside, the tunnel has 2 carriageways with a total of 4 lanes for vehicles.

In contrast, Tunnel B is 3.6 kilometers long at 35 meters deep underground. It runs underneath an urban area with asphalt roads and high-rise buildings. It took only 3 years from 2004 to 2007 to construct Tunnel B, but the cost reached 1.1 billion dollars. Inside the tunnel, each of the carriageways has enough space for 3 lanes, adding up to 6 lanes in total.

In general, in addition to geological differences and measurementsTunnel B cost more money but took less time to complete and can accomodate more traffic coal Tunnel A. (180)

Vocabulary Takeaway:

– cross section [n]: cut plane to show details inside things (in design, construction, graphics)

– vehicle/ means of transport [n]: transport

– traffic [n, Uncountable]: the circulation of vehicles

– accommodate [v]: to have enough space for … have enough space for someone/something

– lane [n]: road lane

– asphalt [n]: asphalt

– carriageway [n]: the direction of the road

measurements [n]: measurements (length, width, height, depth etc.)

– geology [n] / geological [adj]: geology (composition, structure, features in the ground)

– high-rise building [n]: tall building

– underneath = below = under (sth) [adv / prep]: under …

That’s it, the tunnel topic is over, let’s try to write it together.

See also:

IELTS Writing Task 1 topic How a hot balloon works

IELTS Writing Task 1 – Bridges diagram, solving the Bridge problem

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