I'm thinking of using this technology on trains - particularly Metros/Subways https://news.railbusinessdaily.com/a-reflective-perspective-the-whys-and-wherefor

I'm thinking of using this technology on trains - particularly Metros/Subways https://news.railbusinessdaily.com/a-reflective-perspective-the-whys-and-wherefores-of-metro-overheating/ https://news.railbusinessdaily.com/a-reflective-perspective-...