Parking signs are the worst. This designers improvements are clearer though the type size is much smaller. Sometimes you can only see the parking signs as you are driving by looking for a space. Its not much help if you have to park your car, then read the sign.
I attempted a similar solution using a "universal language for time and date" that I created.
That was much cooler than the actual article. I'm not sure I'm convinced of the concept, but it's certainly thought provoking and the video is very well done.
The months section is actually how I've always viewed a year in my mind, except IMHO you have it upside down. Winter should be at the bottom, summer at the top.
I attempted a similar solution using a "universal language for time and date" that I created.
https://www.youtube.com/watch?v=3o_n4XBKZUI Never really went anywhere beyond the video though.