No pole sign, as defined by the West Des Moines City Sign Code, shall be incorporated into any development within the Ashworth Corridor PUD. Ground sign standards shall be used for the construction of freestanding signage as set forth within the West Des Moines City Sign Code. Advertising or promotional temporary signage attached to exterior windows or walls including exposed neon lights visible from the exterior of the building shall be prohibited, except as permitted with a temporary sign permit. (Ord. 1031, 10-12-1992)