El Marg)
Cairo Metro Line 1 is the first line of the Cairo Metro. Its first stage was opened to the public in 1987 and it was fully completed in 1989 connecting Helwan with El Marg and consisting of 33 stations with a total length of 43 km, of which 4.5 km are underground. The line witnessed few developments since 1989, New El Marg station was added in 1999 to the northern end of the line, bringing its total length to 44.3 km. Helwan University station was built between Wadi Houf and Ain Helwan stations. The line now consists of 35 stations. This line carries trains with 3 Units (9 wagons), which have a time difference of 2.5 minutes and a maximum speed of 100 km/h. The line can carry 60,000 passengers per hour in each direction.
Read more about this topic: Cairo Metro, Line 1 (Helwan