Urban Land Magazine recently published an interesting article on the Hudson Yards project in New York, which is the largest private real estate development project ever undertaken in the United States. Click here for the article. Thanks to my friend Evan Schlecker for passing it along. It’s a good read.

The project is being co-developed by Related out of New York and Oxford Properties out of Toronto, and when it’s all said and done, it’ll be over 17 million square feet of commercial and residential space. It’s a $20 billion development project. 

But beyond just being massive and epic, there are a bunch of other things that make this project unique. You can read about them all in Urban Land, but I’d like to share a few snippets with you all here:

The first is about the project’s placement on top of a rail yard:

In order to make use of a site already occupied by a working rail yard—including more than 30 tracks for the Long Island Rail Road and three train tunnels, with a fourth under construction—most of the development will be built atop two steel-and-concrete platforms. That base, and the buildings on it, will be supported by hundreds of concrete-filled caissons, which will be drilled between the rail lines into the bedrock.

Because the location of the tracks and tunnels limits the placement of caissons, only 38 percent of the site can be used to support buildings.

The second is about the project’s use of technology:

Beyond that, a vast number of sensors embedded in the site’s infrastructure will collect mountains of data on everything from temperature and air quality to pedestrian and vehicle traffic. That information, which will be scrutinized in real time by managers in an effort to fine-tune Hudson Yards’ operation, will also be shared with New York University (NYU) researchers, who will turn Hudson Yards into a laboratory for studying urban life and finding ways to improve its quality.

And the last one is about how it interfaces with the High Line (click here if you don’t know what that is):

Pedersen [of Kohn Pedersen Fox Associates] found an intriguing way to address the building’s surroundings. He allowed the High Line—a public park built on a historic freight rail line elevated above the West Side—to penetrate underneath the tower through a 60-foot-long (18.3 m) public passageway, so that the building will interact with the park and its visitors. Inside the building, a dramatic atrium “becomes the terminus of the High Line as it moves from south to north,” he says.

So there are a lot of interesting and exciting things going on with this project. What’s amazing though is how “vertical” this community will be. You have rail lines below grade. Platforms on top. Retail at grade and across multiple levels. And an elevated linear park cutting through the buildings. Not every city can make this work. New York can.

Images: Hudson Yards New York

In 1980, the last train ran on an elevated corridor on the west side of Manhattan known as the High Line. Originally built in the 1930s, the trucking industry had made these trains obsolete and service was halted.

At this point, neighboring property owners began to lobby for the demolition of the High Line, as they no doubt saw it as an opportunity to increase the value of their land holdings. But thanks to local residents – most notably a man by the name of Peter Obletz – the 1.45 mile-long elevated rail corridor was saved from demolition.

In 1999, Joshua David and Robert Hammond then decided to form a non-profit with the goal of both preserving and reusing this unused rail corridor. The group was called Friends of the High Line.

By the early 2000s, Friends of the High Line had successfully made an economic case for transforming the rail line into a public open space and things started moving forward. Initially, it was thought that a public park of this sorts would attract about 400,000 people annually and generate upwards of $286 million in new tax revenues over the following 2 decades (Globe and Mail).

With these expectations in mind, construction on the new High Line Park began in 2006. The first section opened in 2009 – a decade after Friends of the High Line was formed. And the third, and last section, opened just two weekends ago at the end of September.

Today the High Line Park attracts 5 million visitors a year and is believed to be directly responsible for about $2.2 billion in new economic activity. The increased tax revenues over the next 2 decades are expected to reach about $980 million. Without a doubt, the High Line has been a huge success. It has become the 2nd most visited cultural attraction in New York (Globe and Mail).

Which is why every city now wants their own High Line. Philadelphia wants one. Chicago wants one. Mexico City wants one. Seoul wants one. And the list goes on. Here in Toronto, we’ve recently proposed one called the King High Line, which will connect the Liberty Village and West Queen West neighborhoods across a rail corridor.

While I do believe that this is an important connectivity problem to be solved, I worry about how explicit the references are to the actual High Line. Even the street furniture is the same in their promotional video.

I worry not only because it means we’re clearly taking on the role of follower, as opposed to leader, but because an elevated park isn’t going to work in all urban contexts the same way that the High Line worked in Chelsea. This is similar to how Frank Gehry can’t magically turn your city into the next Bilbao. 

So while I have shown my support by becoming a “Friend of the King High Line” (and I would encourage you to do so as well), it’s important to keep in mind that the problems we’re trying to solve here aren’t necessarily the same ones that New York had to deal with.

The High Line – from the start – was designed to have an intimate relationship with its surrounding buildings. The tracks rain directly through them so that the trains could easily load and unload their cargo – that was the whole point. So when the High Line was redone, all of a sudden these buildings were able to reconnect themselves to the park in a way that they were already accustomed to doing.

But in Toronto’s situation, and perhaps in your city, that’s not the case. We’re talking about stitching together two completely disconnected neighborhoods. It’s a noble goal and certainly one that I wholeheartedly believe we should pursue. But I don’t think we should assume that it’s a problem that has already been completely solved for us.

Image: Flickr

New York photographer Jeff Chien-Hsing Liao has an upcoming solo exhibition at the Museum of the City of New York next month called Assembled Realities. I just heard about it through CityLab.

Here’s a bit of background on his work:

Pushing the boundaries of traditional documentary photography, Liao (b. 1977) creates large-scale panoramas by combining multiple exposures of the same location taken over the course of several hours. The resulting composite photographs are often fantastical; complex, hyper-real views that no single shot—or the eye—could capture.

And here’s two more of his photos:

For higher resolution versions, click here.

I love how his photos begin to distort reality and how they focus your attention – in many cases – on New York’s vibrant street life. I thought you might all enjoy them as well.