Laser Crosswalks are the crosswalks of the future. You can tell because it has 'laser' in the name. Pretty much anything with 'laser' in it is gonna be a huge hit in the future (including cereal). Don't believe me? Just stare at this laser eye-toy for a minute. Aaaaand now you're blind.
The Virtual Wall is designed as a replacement for traffic lights and if made would use "plasma laser beams" to project silhouettes of moving people into the path of oncoming traffic.
Supposedly this would calm traffic and make drivers more careful around the soft humans as they cross the street. I'd say it would be more likely that the appearance of giant red figures before the windshield would cause panic, crashing and general mayhem.
Hell yes, giant red laser-people. *pew pew* means walk! Plus, if you try driving through it the lasers should cut you up into little pieces. Don't act like we don't have that technology! We have that technology.
Thanks to Fnahra tha evur livin, who loves lasers almost as much as I do but not quite because I have laser-vision. Yeah, so there, Fnahra.