Ambiguous Visual Controls Archives | Page 3 of 3

Ambiguous Visual Controls: When Words Aren’t Necessary

By Jon Miller - March 8th, 2009

Visual controls must by definition be clear indicators of normal versus abnormal, go versus no go, okay versus not okay. The sign above isn’t at all bad compared to other ambiguous visual controls we’ve featured here, here

Ambiguous Visual Controls: This Way is Up

By Jon Miller - November 12th, 2008

This makes it three for three on scoring photos of ambiguous visual controls during visits to this European country. What could this sign possible mean? A reminder to vertigo sufferers of which way is up? A public service campaign in a

Ambiguous Visual Controls: Stop on Green

By Jon Miller - July 24th, 2008

One of the small remaining delights in foreign travel after 15 years of it is the discovery of yet another laughably ambiguous visual control. Something about them tickles the sense of humor that has been punished by jet lag and questi

Ambiguous Visual Controls: No Running in the Airplane

By Jon Miller - June 29th, 2008

The more you look the more you see ambiguous visual controls. Some are well-intentioned, while others appear to be half-hearted attempts to comply with some bureaucratic requirements. Others hint at hidden efficiencies or inefficiencie