Barcelona metro installs 770 units, reusing old mounts

What makes the Barcelona Metro project worth a close read for anyone who buys or maintains public-facing displays is less the screen technology than two practical details: how the units were counted, and how they were bolted up.

At first glance the numbers don't match. Barcelona City Council puts the project at 770 screens. Soltec, the display manufacturer, says it supplied 1,314 passenger information monitors, according to AV Magazine and ISP Integration Magazine, which both covered the project in October 2026. Both counts describe the same job: LED boards replaced with LCD-TFT displays at 128 stations on lines L1, L2, L3, L4, L5 and L11, carried out between 2024 and 2025 for operator Transports Metropolitans de Barcelona (TMB).

Two counts for one project

Barcelona City Council, writing on its InfoBarcelona news site in November 2024, gave a project total of 770 screens and broke them down by type.

Count each double-sided platform unit as two monitors and the gap closes exactly. The 544 platform units carry 1,088 faces. Add the 190 single-sided screens and the 36 large 55-inch screens and you reach 1,314, which is Soltec's figure. ISP Integration's own wording points the same way: it describes 770 units installed, "most of them featuring double-sided monitors."

So the city counts housings and the manufacturer counts panels. Neither figure is wrong. For buyers comparing bids, though, this could matter, because a price per unit and a price per monitor may not describe the same quantity.

Old brackets, new panels, night shifts

According to ISP Integration Magazine, the team gave priority to keeping and reusing the mounting points already in the stations, which spared it from replacing every support structure. AV Magazine, citing a blog post on Soltec's website, calls adapting the new technology to that existing infrastructure one of the project's main technical challenges. Size helped. The city said most of the new screens are around 50 inches, similar to the screens they replaced, which suggests why the old fixing points could carry the new hardware.

The city said the work is carried out at night when the metro is not in service. It laid out the swap at each position as a fixed sequence:

1. Assemble the frame for the new screen
2. Install the electrical circuits
3. Put the digital screen in place
4. Disconnect the old screen
5. Switch on the new one

Look at the order. The old screen only goes dark after the new one is mounted and wired, so each position is without a display for as short a time as possible. For an operator, that sequence means passengers arriving for the first morning train should find a working board either way.

The rollout itself started in July 2024 on the L4 yellow line, then moved to lines 5, 2 and 1. The city said the first stations were those with no connecting lines that were not terminus stations. Each of those got five to six screens: two on each platform and one or two in the lobby, depending on the station's architecture. Terminus and transfer stations came later. Starting with the simplest layouts could let crews settle into the overnight routine before tackling the busier, more complicated stations.

Those early figures, published while TMB presented the screens at the Tomorrow Mobility World Congress, work out to about 5.4 screens per station. That fits the five-to-six pattern for simple stations. The remaining 477 screens across 74 stations average closer to 6.4 each, which suggests the later phase carried the heavier installs at terminus and transfer stations.

The city expected the rollout to be completed in summer 2025. The city said the screens would not be fitted on automatic lines 9 and 10, as these already have digital information screens. L11 is the interesting case. Wikipedia describes it as an automated light metro with five stops over 2.1 km, yet it is on the list. That suggests the dividing line was whether a line already had digital screens, not whether it ran without drivers.

What €5.2 million bought

The city put the project budget at €5.2 million, with funding from the EU's NextGenerationEU plan through the Recovery and Resilience Facility. The contract was awarded to the ADMIRA-DOVER joint venture, which was responsible for installation.

Divide the €5.2 million budget by the city's total of 770 screens and you get roughly €6,750 each. That is a rough figure we worked out from the published totals. The budget covers installation as well as hardware, and the sources don't break out panels, labour, cabling or content systems, so the number is not a screen price. It is still a usable sanity check for an agency costing a comparable refresh, provided it compares like with like.

Like with like is exactly where the two counts bite. Divide the same budget by Soltec's 1,314 monitors and the figure drops to roughly €3,960 per display face. Same project, same money, and one quotient comes out about 70% higher than the other purely because of what gets counted.

There's a fair counterpoint to calling this a template. Every claim of better readability in the sources is qualitative: sharper image, colour, a more user-friendly format. No source gives viewing-distance, brightness or power figures comparing the new LCD-TFT panels with the old LED boards, so an agency weighing the same switch would need its own measurements under its own station lighting.

Spec details and the data still to come

The hardware is built for a hard environment. ISP Integration describes the Soltec monitors as industrial-grade products designed for continuous 24/7 operation and a long service life, with a high-brightness panel and an ultra-wide, half-height 55-inch format at 3,840 × 1,080 pixels. AV Magazine adds the layout: double-sided screens on platforms, single-sided wall-mounted monitors in corridors and concourses at 1,920 × 540 pixels, with most displays just under 50 inches and some 55-inch ultra-wide models in concourses.

For an operations team, the content plans may matter more than the panels. The city said the screens currently show the arrival time and countdown for the next two trains, service changes, recommendations and corporate content. It also listed what it intends to add: occupancy levels in individual train carriages, last-train and end-of-service times, track assignments at terminus stations and lift availability.

Placement shapes how useful that information is. The city said screens go on every platform, in connecting walkways and in station lobbies, so passengers can see the state of the service before validating their ticket. AV Magazine notes the displays can also carry commercial content alongside corporate messaging, which puts the same screens in the advertising conversation as well as the operations one.

For operators watching the project, a useful test could be whether TMB's operational data can keep up with the new monitors. The city has also said it is upgrading other passenger information systems, including dynamic screens inside new trains and on buses.