Green infrastructure: Implications for spatial, land use and transportation planning

the concept of green infrastructure (Gi) development is promoted worldwide within planning of urban spatial systems. it implies the application of resilience and sustainability considerations in spatial and more specifically transportation planning. the purpose of this article is to assess the linking of incentives to promote green infrastructure development through transdisciplinary planning processes by integrating and mainstreaming related disciplines and planning in general. spatial planning traditionally deals with specific instruments and methodologies focussing on developing the natural, socioeconomic and built environment. transportation planning, due to its integration with land use planning, focuses on movement systems and implies intraand intermovement of people, goods and services supporting development and growth in urban spatial systems. in decision-making for statutory planning, the impact of development is used to levy service contributions in urban areas. it includes the calculation of financial contributions to access conventional infrastructure services networks in terms of specific development policies and priorities. limited incentives exist to promote, integrate and mainstream green development practices in land use and transportation planning. linking and alignment of Gi to brown and grey space planning and development processes is essential to promote inclusivity in ecosystem service (es) attainment. this goal and objective requires development contribution policies inclusive of equitable incentives to promote green planning approaches and principles in planning processes. it implies application of alternative transdisciplinary practices in spatial planning, urban design, transportation and the provision of infrastructure in general. development goes beyond the limits of an individual discipline, site, neighbourhood, town, region or any related spatial and/functional entity and should be linked to system-wide approaches to enhance and integrate es development in a transdisciplinary way. in attaining this challenge, spatial and transportation planning processes have an important role to fulfil.