Which medieval structural innovation resulted in the wide aisles and high vaulted ceilings of Notre-Dame de Chartres?

Gothic art began mainly in the place called Alta Picardia, where these structures transmitted royalty.

In addition, the large number of paleochristian structures made it innovate with Gothic art. The first historical landmarks of Gothic art were the basilica of Saint-Denis and the cathedral of Saint Etienne de Sens

Explanation:

it should be noted that there were many stages of gothic art that some occurred simultaneously, where they were called preclassic gothic art, classical, radiant and late or flamboyant gothic art.

This type of art attracted a very high class in France accompanied by a socio-economic, cultural and agricultural growth in Paris and mainly in Picardy, which is where it first appeared