Station location. No gasoline selling or service station, or area so utilized, shall be located within 500 feet of any property upon which a church, nursing home, hospital, public or parochial school, private school, college, institution or theater shall be located; nor shall any gasoline selling or service station be located within 2,000 feet of another gasoline selling or service station. Such distance shall be measured from the property or lot line on which the proposed service station is to be located on a straight line to the property line or lot line on which the church, hospital, public or parochial school, private school, college, institution, theater or gasoline or service station shall be located.