Digital Projection at London’s Mail Rail

For more than 75 years, London’s underground postal railway – Mail Rail – has been a vital artery in Britain’s communication network, hidden from view. Now, thanks to Digital Projection’s award-winning laser projection systems, Mail Rail has been transformed into an exceptional and unique visitor attraction, preserving this important piece of British history and sharing it with generations to come via an immersive, innovative and impactful exhibition.

When Mail Rail stopped operating in 2003 as a result of post office closures and cheaper road transport, a handful of engineers kept it in good condition just in case it was ever needed again. Fast forward to 2015, and the Postal Museum took over a section of the line with a vision for an exceptional legacy – turning Mail Rail into a unique museum where visitors could take a journey through history.

The attraction, London’s first new museum in a decade, opened in September 2017, and welcomed 15,500 visitors in October 2017 alone. Descending into the former engineering depot of Mail Rail, visitors board a miniature train through the stalactite-filled tunnels to be transported back in time via a mesmerizing 20-minute audio-visual experience – enabled by Digital Projection’s award-winning projection products.

Digital Projection at London’s Mail Rail

Digital Projection was brought on board by AV integration specialist, DJ Willrich (DJW), which handled the AV hardware requirements for the installation. At the initial design stage, DJW determined that projection testing should be undertaken in order to ensure that the concept would stand up and answer the brief to create a fully immersive, entertaining and informative visitor experience. Josh Miller, Project Director at DJW, explains: “Due to the nature of the attraction, minimizing maintenance was a key factor in the selection of laser projection. At this early stage we invited Digital Projection to demonstrate its range of laser projectors and following successful testing it was clear that the E-Vision Laser 8500 was the ideal projector for the project in terms of image quality, brightness levels, durability and value for money.”

A visual journey back in time through the original tunnels and station platforms, Mail Rail takes visitors deep below Royal Mail’s Mount Pleasant sorting office to discover the original and largely unchanged station platforms. Before boarding the train, visitors encounter a four meter wide projection movie introducing the story of Mail Rail, courtesy of a Digital Projection E-Vision Laser 8500 projector. The 240 sq/m open space is also used as a venue for corporate events, with the projector capable of being linked to additional sources in such instances.

Visitors then board the train and are taken on a 15-minute ride through the tunnels, with an on-board commentary explaining the history of Mail Rail as they travel down to the first platform, where they are transported back to its 1930s heyday. Blending archive, motion graphics and character voice performance to create a truly immersive journey, this 18-metre projection captures Mail Rail’s unique sense of place and personality as well as its story. The projection features a 7,000 x 1,200 resolution, warped and blended image utilising a 7th Sense Delta Infinity Server and powered by five Digital Projection E-Vision Laser 8500 projectors.

Digital Projection at London’s Mail Rail

Visitors then continue their underground time travel on to a second platform, where they can follow the journey of three people’s letters in 1930s London. The 22-m, life-size projection features a 8,920 x 1,200 resolution image powered this time by seven Digital Projection E-Vision Laser 8500 projectors. Warping and blending are managed by a 7th Sense Delta Infinity Server

Mark Wadsworth, international marketing manager at Digital Projection, comments: “In addition to the exceptional image quality, performance and reliability, the choice of solid state laser projectors such as the E-Vision Laser 8500 brings major benefits to the client. The knock-on effect of down time due to maintenance at an attraction like this can be huge, but with no need to replace lamps and subsequently re-align the projectors, our laser projectors provide an altogether more suitable and sustainable solution. In addition, the reduced power consumption and heat generated by the laser units are key features in a busy attraction like this, as well as the obvious environmental benefits they bring.”

The installation was not without its complexities and challenges, largely down to the underground environment – which meant systems needed to be particularly robust. With the equipment at risk of exposure to dust, humidity and temperature fluctuations, custom environmental housings from VizBox were developed to mitigate this risk, deploying Digital Projection’s previous experience with projector housings for the London Underground during the design process. 


Digital Projection at London’s Mail Rail

Emma Harper, Exhibitions Officer at The Postal Museum, elaborates on how Digital Projection’s products contributed to the Rail Mail experience: “The AV hardware was critical to the success of this project, providing the backbone to the exhibition and ride experiences. Our key aspiration was to connect people through the evolving story of communications past and present, and show that postal heritage is of interest and relevance to everyone. Bringing the Mail Rail platforms to life played an important part in that, particularly as there are a limited number of artefacts available from what was very much a working depot, but 3D projection mapping really helped us to achieve this.

“Without Digital Projection’s exceptional products, which met all the requirements and helped us to overcome some of the challenges with the environment, we would not have been in a position to do this. The feedback from visitors has been incredible, with many recognizing the innovative technology contributing to the experience.”

Wadsworth concludes: We’re thrilled that DJW deployed our E-Vision Laser 8500 projectors across the Mail Rail project, making us part of such an impressive attraction which brings an important piece of history back to life. This project really demonstrates just how our innovative technology can be applied in a truly creative way, and also enable stories to be told that might otherwise have been left forgotten in the past. We hope many more visitors enjoy the new museum experience for years to come.”

Product mentioned in this case study: E-Vision Laser 8500

  • 8,500 Lumens
  • 1-Chip DLP Projector
  • 20,000 hours illumination
  • WUXGA resolution

E-Vision Laser 8500

The E-Vision Laser 8500 Laser delivers a stunning 8,500 lumens from a stable solid-state light source, capable of producing over 20,000 hours of illumination. This single chip projector was developed with Fit and Forget’ directive, ensuring it needs only minimal maintenance throughout the lifetime of the display.

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完全な安心感とシームレスな視覚体験のために、Digital Projectionを信頼してください。

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