New Delhi, 05 Nov (ANI) : New Delhi has been named the fourth most dangerous city in the world for women travelling on public transport according to a new survey.The survey was carried out by Thomson Reuters Foundation and focused on sexual harassment on public transportation systems in the world's largest cities.Women were required to answer six questions relating to their safety: how safe they felt travelling alone at night; the risk of being verbally harassed by men; the risk of being groped or subjected to other forms of physical harassment; trust that other passengers would assist a woman being physically or verbally abused; and trust in authorities to investigate reports of sexual harassment or violence.