Overview

• The proposal would install ticket-controlled access at all underground stations, modeled on systems in London, Paris, Madrid and Istanbul.
• BVG says retrofitting older, space‑constrained stations would be expensive, technically difficult and impractical.
• Early planning ideas to refinance construction via higher ticket prices drew criticism from riders who argue they should not shoulder the costs.
• Supporters contend gates would deter fare evasion and improve safety and cleanliness, citing long-standing use in other major cities.
• Critics warn of barriers for people with wheelchairs, strollers and rollators, potential displacement of homeless people, prolonged works and recurring technical failures, urging investment in staffing for security and cleaning instead.