One such sign per storefront along Main Street placed directly in front of the business advertised and within 10 feet of the front entrance to said business, provided that such sign shall not exceed 24 inches wide or 40 inches tall, and provided that a pathway area not less than four feet wide between the adjacent building and the adjacent curb shall be maintained at all times. The pathway area shall be unobstructed by trees, tree wells, light poles, trash receptacles, sign poles and posts, telephone booths and similar structures. The pathway area shall not meander around.