Watch out for those concrete blocks!
Artist Nate Swain finished up a project at the Brooks School in Medford today that might help motorists remember to actually stop when driving out onto Allston Street: An illusion that makes them think they're about to hit large concrete blocks:
Here's the view of the "blocks" from the side:
They're known as Icelandic crosswalks, for the country that gave them to the world, and they've proven controversial here: Last year, Cambridge officials actually looked at striping some intersections with them, but concluded they would prove a menace as drivers swerved to avoid them.
That may not be as much of an issue at the Brooks School, because Allston Street is a narrow side street that almost forces drivers leaving the school to go slowly anyway as they turn onto it.