Building setback lines are hereby established for all arterial and collector streets, as shown on the approved “Community Street System” map in the Wamego Comprehensive Plan. The setback lines, as established in this section, shall be held to the minimum for the purpose of promoting the public health, safety, morals, order, convenience and economy in the process of development and shall conform with the following requirements:
(a) Arterial streets. No building or structure which fronts or sides on an arterial street shall be located nearer to the centerline of the arterial street than the sum of the required front yard (in feet) plus 50 feet, except as provided in § 17-2903.
(b) Collector streets. No building or structure which fronts or sides on a collector street shall be located nearer to the centerline of the collector street than the sum of the required front yard (in feet) plus 40 feet, except as provided in § 17-2903.