Comment by kqr

Indeed. The "cones" used in the Nordics are diagonally striped bollard-like things[1]. As a local, I can tell whether the work is done by professionals not based on whether cones are present (they are), but it comes down to if they're turned the right way. (The lower part of the diagonal should point toward traffic -- the less serious contractors don't follow that rule.)

[1]: https://vkmedia.imgix.net/86qD1SWIAtgMMWi86U3gIV82t5U.jpg?au...