The Metro is clean, reliable, and cheap, albeit overcrowded and oppressively hot in the summer. Tickets cost from £E1; there are no multiday passes. The system has two primary lines that crisscross the city. A third line that will eventually reach the airport and the Grand Egyptian Museum on the Giza Plateau is partially open and being completed in phases with a projected completion date of 2020. The Metro runs from 5:30 am to midnight in winter (to 1 am in summer), with trains arriving every 5 to 10 minutes. Each train has cars reserved for women and children. Women traveling alone are advised to sit here, especially during rush-hour travel, to avoid being hassled or groped, although Egyptian women will sometimes pinch other women who have exposed arms.