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Band 4+: The diagram below give information about two road tunnels in one australian city

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Image for topic: The diagram below give information about two road tunnels in one australian city

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The image details Tunnel A and Tunnel B. Tunnel A: built 1987-1992, cost $556 million, cross section is twin tube, length 2.2 kilometres, height 25 metres, structure includes steel and sand. Tunnel B: built 2004-2007, cost $1.1 billion, cross section is twin tube, length 3.6 kilometres, height 35 metres.

Given the complexity of the image, the above description may not be entirely accurate.

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The diagram illustrates differences between underwater tunnel and underground tunnel in a single city of Australia. Overall, underground tunnel is more longer then underwater one. Another interesting point is that underwater tunnel costed a lot while it was opposite for underwater one.

To begin with, the depth of the underwater tunnel is 25 metres while it was 35 metres in underground tunnel. The bridge connects two sides of the underwater tunnel, meanwhile road on the underground tunnel links between two edges of tunnel.

There is a difference in the capacity and length of both tunnels. The length of underwater tunnel is 2.2 kilometres while it was 3.6 kilometres for underground one. The number of vehicles for underground tunnel is 6 while it was slightly less in underwater tunnel which is 4.

The duration of construction of underground tunnel took 3 years while it took a bit longer for underwater tunnel which was 5 years. However, underwater tunnel was more cost effective than underground one with 556 million dollar and 1.1 billion dollar respectively.

Word Count: 173

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Overall Band Score

4.5

(+/- 0.5)

Vocabulary Complexity:
C1 - Intricate
Strive to incorporate even richer and more precise language.

Grammar Mistakes: N/A

Vocabulary Repetition:

tunnel: 14

underwater: 10

underground: 8

while: 5

Try using synonyms for the above words

Task Response

The report attempts to address the task by comparing the two tunnels, but there is a significant issue with how the data is interpreted. The report identifies the tunnels as 'underwater' and 'underground,' whereas the visual description identifies them as 'Tunnel A' and 'Tunnel B.' This leads to confusion in the comparison. Additionally, the report includes information about 'the number of vehicles' and 'a bridge,' which are not present in the provided visual description. To improve, ensure that you only report data explicitly provided in the prompt and avoid making assumptions about the nature of the tunnels (e.g., whether they are underwater or underground) unless stated. Focus on accurately grouping the provided statistics such as cost, length, height, and construction period.

Coherence & Cohesion

The organization of the report is somewhat logical, but the progression of ideas is hindered by repetitive sentence structures and confusing transitions. The use of cohesive devices like 'To begin with' and 'However' is present, but they do not always connect the ideas logically. To improve, try to group information more effectively (e.g., grouping all physical dimensions together and all financial/temporal data together) and use a wider variety of linking words to show contrast and comparison more smoothly.

Lexical Resource

The vocabulary is quite limited and repetitive. There are several instances of incorrect word choices and awkward phrasing (e.g., 'more longer then', 'costed a lot', 'it was opposite for'). Additionally, there is confusion in the report regarding which tunnel is which, which affects the clarity of the description. Aim to use more precise academic vocabulary for comparison, such as 'significantly higher', 'substantially longer', or 'in contrast to'. Ensure that you maintain consistency in your terminology throughout the report.

Grammatical Range & Accuracy

Grammatical errors are frequent and often impede the reader's understanding. There are issues with comparative forms ('more longer'), tense usage ('costed'), and article usage ('the underwater tunnel'). There are also errors in sentence structure and preposition use. To improve, focus on mastering comparative and superlative structures and ensure subject-verb agreement. Practicing the use of complex sentence structures (using 'whereas', 'while', or 'although' correctly) will help elevate the grammatical range.

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