CLEAN : FILE Indias smog choked capital to resume car ban in April

The video discusses traffic and accidents, highlighting safety concerns. It then shifts focus to pollution levels in Delhi, noting a recent improvement and its benefits to residents. Finally, it covers infrastructure projects, emphasizing road development and its impact on the community.

What is the significance of the phrase 'drastic change' in the context of the text?

What road project is mentioned in relation to the pollution changes?