I have seen them all around Geneva, not only at the train station but on roads as well.
radioactive area
Probably part of visual tracking of structural movement. The kind of thing they also do with lasers and strategically placed retroreflectors.
Targets for laser scanning. Multiple point clouds of multiple scans can be coregistered and these are the tie points
Possible positions for Hot-Dog stands.
L’endroit pour foutre un pti coup de poinçon comme à l’école tête de bique
a crosswalk probably
Checkerboard Targets for 3D Laserscanners. They allow you to scan entire train stations in a day and use the data for planning.
Here you can have a look at such a 2TB dataset in your browser (navigate with mouse/arrow keys on PC or push long and then slide up/down the orange/blue slider on touchscreen):
Others have already pointed out it’s likely for laser scanning. If you check out the video on [this website ](https://girot.arch.ethz.ch/courses/elective-courses/point-cloud-video) you can see some examples of the result that laser scanning can give. (there is a scan of Zurich HB amongst others if I remember correctly, pretty cool stuff).
You were told never to ask. And now you have.
Looks like something for construction or planning, btw the first photo looks quite good for being just for a post about these markers.
do you guys have the same clocks as the deutschbahn or what?
It’s a reminder that the Wicked Witch only gave Dorothy that much time in the hourglass to live, so we should live life to the fullest.
Weak points in infrareucture. If the enemys enter switzerland we just blow up essential infrastructure to hinder their movement. Likewise the bridges
I feel really weird looking at the shots considering im at this exact area every morning going to work. Cant explain why.
Freiburg
I sure hope no one removes these
yo where is this train station at? those lights in the back are dope af
It’s for blind people to find the way of the train.
Measuring up for the CFF’s new facial recognition cameras?
24 comments
I have seen them all around Geneva, not only at the train station but on roads as well.
radioactive area
Probably part of visual tracking of structural movement. The kind of thing they also do with lasers and strategically placed retroreflectors.
Targets for laser scanning. Multiple point clouds of multiple scans can be coregistered and these are the tie points
Possible positions for Hot-Dog stands.
L’endroit pour foutre un pti coup de poinçon comme à l’école tête de bique
a crosswalk probably
Checkerboard Targets for 3D Laserscanners. They allow you to scan entire train stations in a day and use the data for planning.
Here you can have a look at such a 2TB dataset in your browser (navigate with mouse/arrow keys on PC or push long and then slide up/down the orange/blue slider on touchscreen):
[https://websharecloud.com/?v=pv&t=p:default,c:panoramaview,h:f,m:f,pr:f&pv=pv1&pv1=vt:3d,u:34f0e066-a443-4508-8bae-696dc3049f6d,cf:65.00,dh:f,st:f,cx:-35.96187,cy:36.28949,cz:501.73734,p:6.12691,t:-0.27322&p=p:dischingen](https://websharecloud.com/?v=pv&t=p:default,c:panoramaview,h:f,m:f,pr:f&pv=pv1&pv1=vt:3d,u:34f0e066-a443-4508-8bae-696dc3049f6d,cf:65.00,dh:f,st:f,cx:-35.96187,cy:36.28949,cz:501.73734,p:6.12691,t:-0.27322&p=p:dischingen)
Others have already pointed out it’s likely for laser scanning. If you check out the video on [this website ](https://girot.arch.ethz.ch/courses/elective-courses/point-cloud-video) you can see some examples of the result that laser scanning can give. (there is a scan of Zurich HB amongst others if I remember correctly, pretty cool stuff).
You were told never to ask. And now you have.
Looks like something for construction or planning, btw the first photo looks quite good for being just for a post about these markers.
do you guys have the same clocks as the deutschbahn or what?
It’s a reminder that the Wicked Witch only gave Dorothy that much time in the hourglass to live, so we should live life to the fullest.
Weak points in infrareucture. If the enemys enter switzerland we just blow up essential infrastructure to hinder their movement. Likewise the bridges
I feel really weird looking at the shots considering im at this exact area every morning going to work. Cant explain why.
Freiburg
I sure hope no one removes these
yo where is this train station at? those lights in the back are dope af
It’s for blind people to find the way of the train.
Measuring up for the CFF’s new facial recognition cameras?
Now I know about this buggers; always wondered.
Hello Cornavin, I see you
For blind people
for blind pepole