Aigle, Switzerland: a public square with a confusing layout

Aigle, Switzerland: a public square with a confusing layout

Aigle train station: a blue asphalt zone covers a large area of the square. Part of the zone has wide light grey parallel stripes on it. White paint delimits 12 parking spaces and highlights the railway track. A few cars are meticulously parked between the grey stripes in the center of the blue zone. Does this design convey rules? is it purely ornamental? Find out what's wrong with this square layout.