New development and redevelopment should provide and maintain facilities for pedestrians as an integrated part of their new development and redevelopment projects. For principal buildings in any PRO, B-1-B, B-2, B-3, B-4 Zoning District (or Planned Development District) featuring a customer or general public entrance, an internal pedestrian space shall be defined and provided from the public sidewalk to the principal customer entrance. This pedestrian space shall be open and unobstructed by landscaping or signage and, where such spaces cross parking aisles or driveways, such spaces shall be distinguished from driving surfaces through the use of durable, low-maintenance surface materials such as pavers, bricks, scored concrete, pavement textures or painted surfaces to define places of pedestrian movement.