Stockholm's metro system celebrates 75 years of operation this week. The network has transformed Sweden's capital city and continues to expand with new lines planned.
Camilla Palmberg Rödin, curator at the Tramway Museum, said in a statement that the metro has become a defining feature of Stockholm. The system developed alongside population growth and technological advances throughout the decades.
The Green Line opened first on October 1, 1950, built on old tramway tracks. Then came the Red Line in 1964, constructed from scratch. The Blue Line followed in 1975, built entirely underground.
Expansion continues today. A new Yellow Line will appear on the metro map in the near future. Why did Stockholm get a metro system? The answer lies in the city's rapid growth during the mid-20th century.
Transport authorities will mark the anniversary by displaying vintage trains in Liljeholmen. The Tramway Museum opens a new exhibition called "The Metro - Keeping Pace with Time."
The metro's continued expansion shows Stockholm's commitment to public transit. This contrasts with many cities that have reduced transit investment in recent years.