Findings No. 60
Pinch zoom over a map enlarges the map, not its labels
On an iPhone, pinching over a live map zooms the map while bus badges and stop labels keep their pixel size. Text drawn on a map must be sized for readability at 1:1.
Text drawn on an interactive map does not behave like text on the page. Pinching over the map zooms the map, and its badges and labels stay the same pixel size, so "zoom in to read it" does not work.
Our low-vision audit of the CCRTA website included hands-on testing on an iPhone. Over the schedule, pinch zoom enlarged the page as expected. Over the live map, it only zoomed the map: bus badges and stop labels stayed at their rendered size, and the tester reported stop labels that were "too small to read" with no way to enlarge them. iOS's three-finger accessibility zoom did work over the map, but only for riders who know that gesture exists, which makes it a discoverability gap rather than a fix.
The only real lever was the base size of what we draw. The remediation enlarged the map's elements to 32px badges with 14px text and 13px stop labels, because those sizes are effectively the ceiling for anyone reading them.
The general rule: anything drawn into a map or canvas, rather than rendered as real page text, has to be sized for the worst-case reader at 1:1. Page zoom and pinch gestures will not rescue it.
Receipt: CCRTA Website low-vision audit, finding F11, hardware pass (docs/a11y/2026-10-low-vision-audit.md; FINDINGS.md, "Accessibility").