2028 in rail transport

December

 * 🇮🇳 – Mumbai–Ahmedabad high-speed rail corridor scheduled to be completed. It will be India's first high-speed rail line.

Unknown date

 * 🇦🇹🇮🇹 – The Brenner Base Tunnel is expected to open as the second longest railway tunnel in the world at 55 km in length.
 * 🇨🇦 – Gatineau LRT is planned to begin operation.
 * 🇨🇱 – Santiago Metro Line 7 opening.
 * 🇨🇴 – The Bogotá Metro is expected to start operation.
 * 🇫🇮 – Vantaa light rail expected to open.
 * 🇫🇷 – Toulouse Aerospace Express of the Toulouse Metro opening.
 * 🇩🇪 – Expected completion of the Fehmarn Sound Tunnel.
 * 🇸🇬 – Stage 2 of the Jurong Region MRT line is expected to open.
 * 🇰🇷 – Planned completion of Nambunaeryuk Line.
 * 🇺🇸 – The Los Angeles Metro Rail Southeast Gateway Line is expected to begin operations under an accelerated timeline for completion.
 * 🇺🇸 – The Los Angeles Metro Rail Sepulveda Transit Corridor is expected to begin operations under an accelerated timeline for completion.
 * 🇺🇸 – Valley Link plans to begin rail service between the Tri-Valley and northern San Joaquin Valley in California.
 * 🇺🇸 – Anticipated opening of the Glassboro–Camden Line light rail in New Jersey.
 * 🇱🇺 – Luxembourg tramway network extension "K2A" to 'Laangfur' in Kirchberg is expected to open.
 * 🇱🇺 – First section of the new Luxembourg-Belvaux rapid tram line to Leudelange is expected to open.
 * 🇫🇷 – Opening of Paris Métro Line 16 from Clichy–Montfermeil to Noisy–Champs.
 * 🇫🇷 – Opening of Paris Métro Line 17 from Le Bourget Aéroport to Parc des Expositions.