The Metrorail (or, more commonly, Metro) subway system is a clean, safe and reliable public transport system. Trains run from 5am Monday to Friday and from 7am on Saturday and Sunday. The system closes at midnight Sunday to Thursday and at 3am on Saturday and Sunday mornings, but the last trains from the suburbs may depart before that. Holiday schedules vary. At busy times, trains come as often as two minutes apart. But even if everything is running on time, the scheduled waits at nights and weekends can be up to 20 minutes.
Metro lines can run deep and the escalators can be very long. The network is, however, wheelchair-accessible via elevators. If the elevators are broken at a particular station, a bus service will run from a nearby station.