Can a woman travel alone?

There are plenty questions with the already drawn conclusion that traveling alone for a woman is forbidden (haram). - Is travelling to persue a career haram for a female Muslim? The person asking already has drawn the conclusion that it is forbidden, saying "i know it is haram". - Are women converts an exception to the rule of travelling alone? This question is asking about an exception of the conclusion that a woman can't travel alone. - Can a Muslim woman **study abroad** without a mahram? In my opinion, studying abroad and **traveling alone** is not focusing on the exact and direct question. - Why are women not allowed to go out alone even in today's society? The question is clearly focusing on **WHY it is not allowed**. I have yet not found a direct question asking if a woman can travel alone or not, therefore I am posting this question. **Can a woman travel alone?** *I would like to hear both the yes and no opinions, both from shia and a sunni point of view.* Please provide references.