Clever "arrow" configuration marks a university "blue" on left.
My thanks to the exchange student who took the time to capture these NATO codes marking this site. Note, the code is in the arrows using actual roadway directionals but with a secondary meaning--Note the "blue" Autobahn symbol is a color-code ID. Color-code "blue" has been an international symbol for "triage", vaccine sites, quarantine/ detention, ect. Schools are on the list for inoculation "shot clinics". Observe also the signage just behind these; a "blue triangle" for additional embellishments for marking this facility. These codes match U.S. DOT/FEMA in the same TACMAR system!