Dubai has an extensive and modern public transportation system that includes a metro system, buses, cabs and even water cabs. The Dubai Metro is a driverless, fully automated subway system that includes two lines and 49 stations throughout the city. Buses cover a larger area than the metro and operate on more than 100 routes throughout Dubai. Cabs are also readily available and affordable. In addition, Dubai's water cabs (abras) offer a unique way to travel on Dubai Creek. Overall, Dubai's public transportation system is efficient, convenient and affordable for both tourists and residents.