I've always been a proponent of research-based design decisions. The more informed you are about a project, a place or the people you're designing for, the stronger your product becomes. I've also found that extensive research helps a designer understand where and when it's best to push the envelope.
Below I've included my thesis work which was an investigation into the potential of stormwater management as an aesthetic amenity in urban streetscapes, as well as some basic research methods I've used in my professional career in UX.