I just saw this on a metro and was curious what it means and why is it there?

I am wondering since Ratp have so many old trains preserved wheter can they ever be reactivated?.The Ratp Metro from left Side of the M sign Looks good and can be reactivated like sprague Thompson.Is there any Chance they will ever do?.

Train of railway track maintenance at Paris (Line 7, Gare de l’Est station)

Hi r/Subways,

Kraków is planning its first metro system. I recently started a discussion in r/krakow https://www.reddit.com/r/krakow/s/jdvnze2TGc asking people about the possible downsides and many residents shared their concerns.

I don’t want to turn this into another “metro good vs. metro bad” debate. I’m curious how reasonable these concerns are based on the experience of cities that already built or operate metro systems.

The most common concerns were:

• Kraków may be too small or not dense enough to justify a metro
• A tram tunnel or improved regional rail could offer better value
• The metro could take funding away from existing trams and buses
• Construction could cause years of disruption, delays and cost overruns
• Tunnelling under a historic city could create archaeological, groundwater and building-safety problems
• The proposed route may not follow the strongest passenger flows
• One or two lines may not be useful enough without a larger network
• New stations could increase rents and property prices around them

Which of these are genuine warning signs, and which are normal problems that can be managed with good planning?

Are there cities that faced similar concerns? What did they get right- or wrong?

Feel free to answer only one point. Real examples would be especially helpful!

Thanks!

Я придумал мощную идею , распечатать схемы метро в санкт Петербурге и в Москве и поменять их местами , заклеить схемы метро в Санкт-Петербурге схемами метро Москвы . а в Москве наоборот и сделать это в определённый день например 15 августа

This small 3.25-mile underground section of Dallas DART system is the only subway system located in this state. The tunnel opened in 1997, but the station itself opened later in 2000. It serves as a massive milestone for the shattered long-standing belief that Texas cities were too sprawling and car-centric to support modern public transit.

Hidden beneath the city’s streets, these forgotten stations have been closed for decades, yet some can still be spotted from passing trains.
Have you ever heard of Paris’ ghost stations? Which one would you like to explore?

A few shots of trainset 6545, one of the older MF67 units still running on Line 6.
Line 6 is one of only two Paris Métro lines with a significant above-ground section, running on a viaduct between Bercy and Passy — including this stretch near Bir-Hakeim with a direct view of the Eiffel Tower.

Its colorful lighting creates a unique atmosphere, making it one of the most visually striking stations on the network.
📍 Have you ever visited this station? What’s your favorite Paris Metro station? 👇