Transit
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.
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.
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by цarьchitect on Jun 2, 2009 10:41 am • link • report
by Bianchi on Jun 2, 2009 10:52 am • link • report
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 • link • report
by RichardatCourthouse on Jun 2, 2009 11:22 am • link • report
by tom veil on Jun 2, 2009 11:25 am • link • report
by Lance on Jun 2, 2009 11:35 am • link • report
by Ed on Jun 2, 2009 11:36 am • link • report
by kk on Jun 2, 2009 11:47 am • link • report
by BeyondDC on Jun 2, 2009 11:48 am • link • report
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 • link • report
by Matt Glazewski on Jun 2, 2009 1:40 pm • link • report
by Laurence Aurbach on Jun 2, 2009 1:46 pm • link • report
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 • link • report
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 • link • report
by crin on Jun 2, 2009 3:35 pm • link • report
How about we just start letting people move between railcars? Totally free.
by BeyondDC on Jun 2, 2009 4:03 pm • link • report
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 • link • report
by Tim Fry on Jun 2, 2009 4:37 pm • link • report
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 • link • report
by цarьchitect on Jun 2, 2009 6:04 pm • link • report
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 • link • report
by John on Jun 3, 2009 2:18 pm • link • report
by John on Jun 3, 2009 2:28 pm • link • report
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 • link • report
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 • link • report
by Tim Fry on Jun 5, 2009 12:21 pm • link • report
by Matthew Hu-Smith on May 9, 2010 11:38 pm • link • report
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