Continuous internal pedestrian walkways, no less than six feet in width, shall be provided from the public sidewalk or right-of-way to the principal customer entrance of all principal buildings on the site. At a minimum, walkways shall connect focal points of pedestrian activity such as, but not limited to, transit stops, street crossings, outdoor benches and seating areas, and building entry points, and shall feature adjoining landscaped areas no less than five feet in width that include trees, grass, shrubs, benches, flower beds, ground covers, or other such materials for no less than 50% of their length. These areas must comply with the minimum planting area requirements set forth in § 270-141E of this chapter.