Some comments taking from Reddit.com:
This would only ever look 3D from this one angle. From any other angle, it’s just going to be a weird messed up pile of shapes. As a traffic engineer, I have to point out that this is kind of terrible. As an artist, I have to point out that it’s a pretty cool idea and it has a cool effect, whether it was actually done in paint or photoshopped in post.[–]viking78 68 points 1 day ago
As a software engineer I have to point out that the flat colours help compress the picture into a GIF file. As a cook, I have to point out that those, covered in chocolate, would make a good dessert. As a father, I have to point out that it would confuse my kids when crossing the street. As an astronaut, I have to point out that those look weird from space. As a plumber, I have to point out that making an drain installation under the bars would be easy. As a pet store owner, I have to point out that the exercise of dogs going up and down the bars would be good for them.[–]simmojosh 4 points 1 day ago
Even if you don’t get this perfect image I, personally at least, would be more likely to notice something painted weird than a normal crossing that I have seen variations of thousands of time. This is mainly because even if you don’t get the shadow looking right the white lines themselves are still going to look boxey thanks to the darker sides. This would be different enough for me to be more likely to take notice. Obviously not useful over a network but I can see how just one could help out for drivers never taking the route before.[–]verisceral 6 points 1 day ago
Exactly. Moreover, it will only look good from (more or less) precisely this distance, and as I’m assuming it’s a two way road, the perspective of drivers is unlikely to ever be as central as this, not to mention the fact that the eye-level of the pic looks to be higher than the average driver’d perspective. I’m not saying it isn’t cool, I just don’t see how it would actually warn a driver – it’s just an art installation, and a cool one at that.