I overlapped the below icon on top of the vehicle but still the user feels like the vehicle is prohibited rather than not working/operational. not working Is there any other way to design. Thanks in advance.

  • Perhaps a warning icon? Commented Oct 6, 2016 at 9:21
  • Maybe something based on the lock-out tags your particular group uses?
    – Cort Ammon
    Commented Oct 6, 2016 at 22:19

3 Answers 3


In cases like this it's worth brainstorming a bit first. After and during it might be a good idea to see what others have done with tools like the noun project (and search for broken and crane for example). Then just integrate the ideas by combining things, here I'm combing crane, broken bone and typical warning sign. YMMV.

enter image description here

Image 1: Quick example combining 3 different concepts

Obviously you need to do your own thinking here and my example is very quick but shows how you could approach the problem.

  • 2
    Alternatively, a line drawing of a crane with a broken boom. Or a crane with a broken leg. (SCNR). Commented Oct 6, 2016 at 16:07
  • I'd be concerned that this looks like "warning, crane", with only a very small amount area showing "broken". A bit of dirt or wear and it goes away completely. thenounproject.com/search/?q=crane&i=490256 (give it a single-line "arm") with a large thenounproject.com/search/?q=broken&i=126507 style break?
    – Yakk
    Commented Oct 6, 2016 at 19:22
  • @Yakk its a demo not supposed to be used. It is intentionally quickly done, point is i'm combining items and ideas on lists of things. Its a first sketch that's all i used a whopping 3 minutes to draw the image.
    – joojaa
    Commented Oct 6, 2016 at 19:41
  • 2
    (1) this means "hook not working", not, "crane not working". in any event: (2) the "break" indication is, absolutely and definitely, too small by an order of magnitude.
    – Fattie
    Commented Oct 6, 2016 at 21:10
  • 1
    @JoeBlow Sure. That is life, you can not make a perfect icon without somebody disagreeing, pretty sure the symbol means something else in a far away place. Making a image is just a first step in design it still needs to be evaluated, tweaked etc. But like in code premature optimisation is a problem. Perfect is the enemy of done. Like i said i dont expect anybody to use this particular icon.
    – joojaa
    Commented Oct 7, 2016 at 4:04

Maybe display a broken crane, like you would display a broken heart? Or a large bandaid icon, accompanied with a word/text?

  • 3
    cracked in half with a plume of smoke should convey the idea
    – coburne
    Commented Oct 6, 2016 at 18:14

If you can use colours I'd say make a green crane for OK, a red one (optionally with a line through it) for forbidden and a grey one for 'not available'.

  • 6
    Don't neglect the possibility that the users who see the icon may be color blind, especially as red-green color blindness is the most common form.
    – Tristan
    Commented Oct 6, 2016 at 14:08
  • Yes, there is that.
    – PieBie
    Commented Oct 6, 2016 at 15:42

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