How do accessibility measures impact the assessment of social equity in transport systems?

Accessibility measures are integral to assessing social equity in transport systems as they help to evaluate service levels provided to various populations. By focusing on how different groups, particularly marginalized or disadvantaged communities, can access transportation options, these measures illuminate disparities in service quality and availability.

For instance, evaluating accessibility may involve understanding how easily different populations can reach essential services like healthcare, employment, and education via public transport. This perspective is crucial in identifying whether certain groups are systematically underserved, which is a key aspect of social equity. When accessibility measures reveal that some populations face barriers to transport options, planners and policymakers can address these gaps and work towards fostering equitable transport systems.

In contrast to the correct answer, the other options do not adequately highlight the role of accessibility measures in promoting social equity. For example, suggesting that they primarily benefit wealthy populations overlooks the aim of these measures to identify inequalities and promote equitable access. Similarly, while assessing transportation system costs is important, it doesn't directly pertain to evaluating social equity, nor does focusing solely on efficiency consider the broader impacts on access for diverse populations.