まずは『青空駐車』の定義から学べ。
https://meaning-dictionary.com/%e3%80%8c%e9%9d%92%e7%a9%ba%e9%a7%90%e8%bb%8a%e3%80%8d%e3%81%a8%ef%bd%a2%e9%9d%92%e7%a9%ba%e9%a7%90%e8%bb%8a%e5%a0%b4%e3%80%8d%e3%81%ae%e9%81%95%e3%81%84%e3%81%a8%e3%81%af%ef%bc%9f%e5%88%86%e3%81%8b/