(I gave myself a headache writing this, so be warned. I don’t even think there is an order to this ramble.)
I’m having trouble deciding how to structure everything; trouble making decisions about what this space is supposed to be about. I have at least made progress in developing a plan for the ground, but it is still structured by the existing forms. (Sorry, Brad – I still can’t get away from that circle on the right – I’m smitten with it apparently.)

The overhead structure is really giving me problems. In thinking about how sound travels and trying to develop some idea from this while still using the existing highway structure, I get trapped into trying to figure out if I’m trying to abate the noise or utilize it. Even if there is some sort of overhead structure, IMO the view down the middle is an important keeper. It provides sunlight as well a frame for sky gazing. So, do I try to keep it open, knowing that no matter what else I do, the noise will come through it, negating any measure taken to avoid it OR do I think about a transparent something there that allows for the view yet keeps the noise down? And how do I incorporate this into the rest of it? The underneath of the highway is particularly ugly – would glass distortions make it less so? Perhaps some paint up there plus the distortion would be cool. Or maybe that glass piece could be some sort of digital screen that transforms the entire upper view by the reverberation bouncing around up there. Trippy. (Sounds like Brad’s waterfall… )
And then there is this thought about creating spaces and how to vary them by using the overhead. How is the overhead structured? Let’s try “easy”. Maybe it’s just flat glass, with crazy paint on the underside of the interstate. Maybe the structure of it is flat, but the visuals created by the reverb of the highway, make it look curvy/crazy. And they can change as the traffic does – the visuals tell you when it’s rush hour. But then what if the glass moved too… so that at if there were times you wanted an amphitheater/market space, you just reconfigure the overhead to give you better acoustics - otherwise, it creates smaller and larger cubby holes for people to hang out. (Can I borrow your lighting project, B?)
And then there is the device… the thing that relates to the sounds and makes them less intrusive or creates beauty from them. I’ve been mulling over wind harps in my head… not really a wind harp, but rather a reverb-activated harp – chords created by the different traffic above. I’ve been listening to some wind harp recordings – kind of creepy. David Lynch would definitely display his art in my “sound garden”.
My devices are the ground and overhead. The overhead not only creates the spaces by the form it takes, but also becomes the device that connects the surroundings to the intervention, to the ground device. The ground is created by the need for better organization, but also should relate to that peculiarity that I have chosen as my inspiration and to the overhead. Visually, there should be some reason to connect this site to the sounds you hear; audibly there should also be cues though, too. So maybe the reverb “harp” and the ceiling activate together, perhaps even traveling down the pillars onto the ground plane, creating lighting, atmosphere, a great place to eat mushrooms.