16.2 Landscape Development
All interchanges should be designed so that the landscaping complements the road design objectives and the overall visual amenity is pleasing to drivers and passengers. Landscaping should be designed to assist drivers by providing visual cues and directional guidance within the interchange area (for example by screening distractions), and to help focus the driver field of view on the roadway area. The landscaping may include public art in the form of sculptures or feature decorative treatments of structures, such as abutments to enhance the sense of arrival and local visual amenity.
Significant cut/fill batters and drainage basins are often associated with interchanges. Landscaping should be appropriate to the landform and contribute to the operational and environmental functions. Surface treatments should complement the functional use zones within the interchange (e.g. drainage basins) and minimise the ongoing landscape maintenance requirements.
Planting buffers and selective screening of the interchange area from adjoining land uses such as residential areas may be required to minimise visual impacts and contribute to the overall visual amenity experienced by landholders adjoining the interchange. In some cases additional built screens or walls may be required to address visual intrusion or the loss of visual privacy (e.g. views into private living areas from ramps), and to meet community expectations.