Wayfinding for a Hospital Where the Signs Made It Worse
A hospital's outpatient wing is a 1970s building with three lifts, two stairwells and corridors that fork at unexpected angles. Visitors frequently arrive late for appointments. The facilities manager installs 120 new signs: white text on mid-blue panels, 60 mm capital letters, mounted 2.4 m above the floor, with arrows pointing along corridors. Complaints increase. An audit finds that visitors stop at the main junction, look up, and then ask staff. The blue panels are the same blue as the door frames and the handrails. Several arrows point to destinations that are actually reached by turning left at the next junction. The lettering is legible from 4 m but the junction is 9 m wide, and visitors approach it from four directions.
1. Using design elements and principles, explain why the new signage failed despite being 'legible'.
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Legibility of individual letters is not the same as wayfinding legibility, which depends on contrast, hierarchy, scale and consistency across the whole system.
- Contrast (element: tone/colour): Mid-blue panels on mid-blue door frames and handrails destroy figure–ground separation. A sign must contrast with both its message and its environment; here the environment camouflages it. White on mid-blue is also a relatively weak luminance contrast for glance-reading while walking.
- Hierarchy: All 120 signs appear to carry equal visual weight, so the junction sign - the one decision point that matters - does not dominate. There is no primary/secondary distinction between 'you are here', 'departments this way' and 'room numbers'.
- Scale: 60 mm capitals are adequate at 4 m but the viewer is making the decision at up to 9 m and from four approach directions. Letter height must be matched to the reading distance at the decision point, not to the wall it is fixed on.
- Consistency and alignment: Arrows that point along the corridor when the turn is at the next junction break the mapping between symbol and space. Inconsistent arrow logic forces the viewer to re-read rather than act.
- Position: 2.4 m mounting places signs above the natural line of sight and above the crowd, so they are missed at the moment of hesitation.
The audit symptom - people looking up then asking staff - is the signature of a system that is visible but not decodable at the decision point.
2. Propose three changes and explain, for each, the principle or element being corrected.
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- Re-colour the panels to a high-contrast, non-environmental colour (e.g. a warm accent against the cool blue-grey interior) and keep that colour exclusive to wayfinding. Corrects figure–ground contrast and creates a consistent visual code. If blue appears on handrails, it cannot signal 'information'.
- Rebuild the junction as a single decision node. One larger panel at the fork, lettering sized for the 9 m approach and readable from all four directions (angled or duplicated faces), positioned at roughly eye level. Corrects scale and position relative to the decision point. Remove or demote signs that are not at a decision point.
- Fix the arrow logic and add a 'you are here' reference. Arrows must represent the actual turn and the next action, and a simplified plan at the junction gives the viewer a mental map rather than a list. Corrects consistency and supports spatial mapping.
A fourth, optional change: reduce the total sign count. 120 signs is a symptom of compensating for a confusing plan with text; fewer, better-placed signs at genuine decision points usually outperform comprehensive coverage.