Now this is necessary when cities are under siege and population is cut off from food, supplies, electricity and water. It is sometimes set up by the UN or by the local bodies. But sometimes what what is humanitarian corridor harmful in the sense when weapons and fuel can be stored there. Now access what is humanitarian corridor determined by parties to the conflict. It is usually the UN or the Red Cross which is the aid organization to look after the length of time area truck allotted in the corridor