After posting about the renaming of buildings at Guy's and St Thomas' Hospital, I remembered they were a client of our wayfinding team at Enterprise IG. Checking up I find it was indeed our trusty wayfinders, Colette Jeffrey and Alison Richings who were responsible. Uncommon sense, in fact.
Colette (under her former surname Miller) with David Lewis researched and wrote the standard work on wayfinding for healthcare sites for the NHS. She led wayfinding projects for around 25 hospitals, and is now to be found teaching at Birmingham City University.