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Takoma tiles a success for Metro

For the past four months, riders on Metro's Red Line have been able to notice a new kind of flooring at DC's Takoma station. Installed as a part of a test to see how well the new material would hold up, the new, larger pre-cast concrete tiles are located at the far northern end of the platform, where they are exposed to the elements. Metro announced yesterday that the test has been successful, and these tiles will soon be coming to other stations whose floors are in need of replacement.


Old and new tiles side-by-side at Takoma.

Since 1976, Metro has been using a terra cotta-colored, hexagonal glazed tile. This design feature has long been one of Metro's common design themes which help to unite the architectural experience. Unfortunately, these tiles have not held up well under outside conditions. Metro reports that one of the reasons for platform deterioration at exterior stations has been caused by water seeping through the tiles and damaging the underlying structure.

The new tiles are made of concrete. They are square, but are cut to appear hexagonal. Each slab is larger than the traditional seven-inch hexagonal tiles rail riders are used to, reducing the permeability of the platform surface. These tiles should do a better job of protecting the platform supports in addition to being safer for passengers. They will be less likely to come loose as the current tiles are wont to do, and have the added advantage of being less slippery. The new tiles are just as easy to keep clean as the old tiles, but require less upkeep. Additionally, the uniformity of design which is unique to Metro will be maintained.

These tiles will be installed soon at other Metro stations where decades of snow and rail have taken their toll. The rehabilitation of platforms with these tiles is expected to occur this fall. All future Metrorail platform construction and rehabillitation, including the Silver Line to Tysons and Dulles, will use the new pre-cast concrete tiles.

Matt Johnson has lived in the Washington region since mid-2007. He has a Master's degree in Community Planning from the University of Maryland and a BS in Public Policy from Georgia Tech. He has worked in the planning field since 2006 and lives in Greenbelt, where he serves on the city's Advisory Planning Board. 

Comments

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That's not as bad as I thought it would look. A bit more color variation and some glossiness would make them totally acceptable.

by цarьchitect on Jun 2, 2009 10:41 am • linkreport

I welcome this change. Regardless of the look of the original hexagon tiles I found them a very poor choice of material because they are so damn slippery when wet. I hate them. A few years ago i had to get around on crutches and those damnable slick hexagons were a considerable hazard - more then once the crutch slide out from under me on those damn things when they were wet. Good Riddance. Aren't architechts supposed to consider degree of friction both dry and wet when planning walking sufaces?

by Bianchi on Jun 2, 2009 10:52 am • linkreport

Matt,

The tiles are not "terra cotta-colored" Terra cotta is one of the many different types of ceramic products. The tile that WMATA has been using in their stations sense the first tile was set in back 1974 is quarry tile. Terra cotta is not as durable as quarry tile. Terra cotta is generally used for ornamentation not on floors.

by Sand Box John on Jun 2, 2009 10:58 am • linkreport

These have a nice look... and if they're less slippery when wet, awesome.

by RichardatCourthouse on Jun 2, 2009 11:22 am • linkreport

I agree with the öarüchitect that this is better than I thought it would look, and that a little more color variation would be nice. If it's less slippery and less prone to damage, then I'd say it's worth the change.

by tom veil on Jun 2, 2009 11:25 am • linkreport

Those rumble strips they installed at the edge of the platforms (pictured above) some years back may be helpful to the sight-impaired but are a real tripping danger to most people. It'd be nice if they could come up with a solution that accomodated the sight-impared without endangering everyone else. There must be another solution out there ...

by Lance on Jun 2, 2009 11:35 am • linkreport

Ah, I was wondering why they seemed to install new tiles and then stop. Makes sense. I am glad they're working with these - I've walked on them, although not in the rain, but I imagine they're much less slippery in the wet.

by Ed on Jun 2, 2009 11:36 am • linkreport

Why not just extend the canopy that is over the platform to include the whole platform; I think that is one reason why people don't spread out on the platforms because of the elements if your under the canopies your not exposed to rain, snow or direct sun light(excluding the stations with glass canopies)

by kk on Jun 2, 2009 11:47 am • linkreport

Because extending the canopy would be much more expensive.

by BeyondDC on Jun 2, 2009 11:48 am • linkreport

BeyondDC,

You're right, of course, although I have to throw my lot in with kk. I feel that extending the canopy, while more expensive, would do wonders for getting people to space out on the platforms, plus it would have the side effect of looking nice to boot.

by Art on Jun 2, 2009 12:36 pm • linkreport

I'm inclined to agree that I don't like the terra cotta tiles when wet. It would have been nicer if they could have made the concrete ones look more natural by not having them in giant squares, but I'm glad that they found a way to preserve Metro's image and reduce the degradation of the outside platforms. Of course, having awnings over all outside platforms would be ideal as well - but I imagine it can get quite expensive.

by Matt Glazewski on Jun 2, 2009 1:40 pm • linkreport

I Wonder if they can match the original tile color more closely. The new concrete tiles are pinker, grayer, and less saturated.

by Laurence Aurbach on Jun 2, 2009 1:46 pm • linkreport

It'll be great if these are less slippery. The old ones were an unpleasant part of using an outdoor station when it's wet outside.

It'd be great to increase the amenities of outdoor stations overall. The idea behind above-ground tracks and stations, I'm sure, is to save money from tunneling. Can we put some of those savings into making the outdoor stations less nasty when it's cold, rainy, etc.?

Some ideas:

Extending the canopy

Building more shelters

More frequent custodial work when it's wet (usually there'll be a "wet floor" sign out; when it's really wet, could someone come mop it up?)

Deploy outdoor space heaters when it's very cold (say, 35F or less) -- the way that restaurants do for their outdoor seating or smoking areas

by Gavin Baker on Jun 2, 2009 1:47 pm • linkreport

Gavin,

Interesting ideas indeed, I wonder what effect those would have on ridership at the stations? Anyone have any guesses how extending the canopy to cover the entire station platform would affect things?

by Art on Jun 2, 2009 3:24 pm • linkreport

They don't look as good, but they'll be less slippery. For the same reason the concrete will be less slippery than the tile (rough surface instead of smooth) the concrete will be harder to clean than the tile. The joints will leak just like the original, so that problem isn't entirely solved.

by crin on Jun 2, 2009 3:35 pm • linkreport

Art,

How about we just start letting people move between railcars? Totally free.

by BeyondDC on Jun 2, 2009 4:03 pm • linkreport

Art, my guess is that it would take resources from other more needed areas of Metro. Keep in mind that platform crowding is an issue maybe for 2-3 hours/day (morning rush, when people are waiting to head in) at most stations. And on how many of those days is it a problem to stand outside instead of under a canopy? 50% maybe, when it's either raining or blistering mid-summer sun?

If Metro had all the money in the world, perhaps it would be a good expenditure. But I'd rather they used that money to fix escalators or buy more rail cars so people don't have to wait so long in the rain in the first place.

by ah on Jun 2, 2009 4:19 pm • linkreport

Why did they have to try and "match" the previous look? Yes its distinctive but the floors are nothing to write home about. And I can only imagine the "hexagonal-tiling-effect" of the new tiles will be just as difficult to clean. If you had a flat floor it would be easier to mop without all of the various sizes. So is there any other reason than tradition and distinctiveness for the hexagonal tiling?

by Tim Fry on Jun 2, 2009 4:37 pm • linkreport

Tim, it's not so much that the tiles are great it's that they work so well with the rest of the structure. The metro has a lot of square shapes, which the hexagons break up nicely. They have a nice rhythm and color palette and, I think, make the platforms a lot more human-scaled an comfortable than concrete do. These little details are what makes the Metro or any other piece of good architecture a cut above the rest. The concrete platforms of other subways I've been on are miserably ugly and dirty.

That's not to say it can't change, but that they need to change carefully, like in any sensitive situation.

Bianchi, Slipperiness is a big problem, but at least the floors aren't polished marble or terrazzo.

by цarьchitect on Jun 2, 2009 5:44 pm • linkreport

Closing bold

by цarьchitect on Jun 2, 2009 6:04 pm • linkreport

Lance,

WMATA had the solution before ADA became the law of the land. The 18" Platform granite edge is rougher then the platform tiles. The only problem was the rough granite was not rough enough to comply with the regulation that were written to define ATA requirements for rail station platform edges.

ADA requires 24" duct tile truncated domes of contrasting color as defined in ADA and ABA Accessibility Guidelines for Buildings and Facilities, Part III: Chapter 7: Communication Elements and Features 705 Detectable Warnings.

WMATA litigated the placement part of the regulation because of the flashing lights in the 18" platform granite edge. In the end WMATA was required to place the 24" duct tile truncated domes behind the 18" granite edge but was not required to use a contrasting color.

by Sand Box John on Jun 3, 2009 1:21 am • linkreport

I'm not crazy about that new rumble strip at the platform's edge, before the light strip. I kind of liked the danger of the previous design.

by John on Jun 3, 2009 2:18 pm • linkreport

Do we know if there are plans to replace the indoor platforms with this new design, too? Or is this just for the exterior platforms?

by John on Jun 3, 2009 2:28 pm • linkreport

it's pretty inauthentic to maintain the hexagonal appearance but not the actuality of hexagonal tile divisions. I'd rather see a breaktown of a new pattern (with divisions for a pleasing scale) that isn't two incongruent shape systems....

it just shows as a departure from the purity of the design intent, but not as badly as the new seat upholstery!!

by anonymous on Jun 3, 2009 4:10 pm • linkreport

John,

The first sentence in the WMATA press release answers that question.

"After 33 years, Metro is taking a key step to improve the tile floors in the 86-station Metrorail system."

by Sand Box John on Jun 3, 2009 10:46 pm • linkreport

Thanks цarьchitect. Appreciate it.

by Tim Fry on Jun 5, 2009 12:21 pm • linkreport

I agree with Lance that the brown bumpy dome strips do more harm than good because someone, especially when wearing high heels can trip on the bumpy tile if they step on it wrong. I like the original red hexagonal tiles a lot better. The red tiles are very nice and stylish, they're even a little shiny, which gives the platform a very nice fashion sense. Not only are the red tiles nicer to look at, they're safer to walk on than the bumpy tiles. Those red tiles are just plain smooth (literally).

by Matthew Hu-Smith on May 9, 2010 11:38 pm • linkreport

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