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Difficulty: EasyIdentifying Main Ideas and Supporting Details

Read the following excerpt from an article on urban innovation:

In response to rising traffic congestion and air pollution, city planners in Barcelona implemented an innovative urban model known as 'superblocks' (superilles). By grouping nine traditional city blocks into mini-neighborhoods, vehicular traffic is restricted to the outer perimeter, while interior streets are reserved exclusively for pedestrians, cyclists, and green community spaces. Early studies show that these redesigned zones have successfully reduced nitrogen dioxide levels by nearly twenty-five percent and created vibrant public plazas for local residents. Although some delivery drivers initially voiced logistical concerns regarding commercial drop-offs, the overall initiative has transformed urban living by prioritizing community well-being and environmental health over private automobile dominance.

Which of the following statements best expresses the main idea of the passage?

  1. A
    Commercial delivery vehicles have been permanently prohibited from operating throughout the entire city of Barcelona.
  2. Barcelona's superblock initiative redesigns urban street grids to prioritize pedestrian life, green spaces, and environmental health.Answer
  3. C
    Nitrogen dioxide concentrations in Barcelona dropped by nearly twenty-five percent according to early environmental studies.
  4. D
    The primary purpose of the superblock program was to resolve scheduling disputes among municipal transport workers.

Answer

The statement that Barcelona's superblock initiative redesigns urban street grids to prioritize pedestrian life, green spaces, and environmental health best expresses the main idea.
The correct answer accurately synthesizes the entire passage, identifying what the superblock model is (reorganizing street grids) and why it was created (to improve environmental health and prioritize pedestrian and community spaces over automobile traffic).

Step-by-Step Solution

1
Analyze the opening and concluding sentences of the passage.
The text introduces the superblock model as an urban innovation to address pollution and congestion, concluding that it transforms urban living in favor of community and environmental well-being.
Main ideas in journalistic articles are typically framed in the introductory context and reinforced in the concluding synthesis.
2
Distinguish between supporting evidence and the central claim.
Details such as the twenty-five percent reduction in nitrogen dioxide and driver concerns serve as supporting evidence and context rather than the comprehensive thesis.
A main idea must encompass the full scope of the passage rather than focusing on a single supporting fact or metric.
3
Select the option that captures the full scope of the initiative.
The option highlighting the redesign of street grids for pedestrians, green space, and environmental health accurately reflects the whole text.
This choice encapsulates both the physical mechanism of the superblocks and their intended primary benefits.

Key Concept

Identifying the central thesis in an informational text by separating overarching claims from supporting data and localized examples.
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Topics

Identifying Main Ideas and Supporting Details

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