a closed sidewalk?

i live on the northeast outskirts of the indianapolis metropolitan area. i can drive 10 miles one way and be in the middle of subdivisions and shopping malls. i can drive 10 miles the other way and be in the middle of cornfields.

as i travel from my house to indianapolis, i often drive on pendleton pike, which goes northeast from downtown. it's also known as state road 67 and u.s. 36.

last year, the state expanded pendleton pike from shadeland avenue to the marion county line. i drove by a work site and saw the highway department had put down a sidewalk along it.

but there were signs hanging from saw horses that said the sidewalk was closed.

i repeat -- signs said the sidewalk was closed.

when i saw the signs, i wonder what einstein was behind that decision.

when i think of something that's closed, i think of something that's hard to enter, like a locked building. but you could've gotten onto the sidewalk from either side of it.

now if there were signs that said stay off the sidewalk -- that i could understand.

but that? what the hell did that mean?