Green Procurement of Infrastructure
The results from LCA studies can
support green procurement and setting requirements in rail and road
infrastructure projects. Environmental requirements may be set, where LCA
studies function as both evidence of environmental performance as well as
estimating the environmental impact during the life cycle of the project. For
example, a supplied product can use LCA data to prove its environmental
performance and provide the necessary information for that data to be used in
the LCA at project level. In addition, LCA studies can facilitate environmental
goal setting, providing a measurable and verifiable process for integrating
environmental performance to procurement activities.
Product Declarations in green procurement
Environmental Product Declarations
(EPDs) according to ISO 14025 are based on the results of LCA studies. EPDs can
be developed at varying product system levels and provide verifiable
information on the environmental impact of the material or component of an
Setting requirements for the delivery
of ISO 14025 compliant EPDs during procurement processes provides a basis for
assessing the environmental impact of alternative options as well as the
complete infrastructure project. EPDs allow for evaluation of suppliers’
environmental performance, as suppliers with lower environmental impact can be
selected against alternative options.
It is recommended to request EPDs for
materials, elements and components in tenders or requests for quotation. More
than providing for verifiable evidence of environmental performance and
supporting decision making processes, EPD may also function as a driver for
increased environmental awareness for suppliers and achieving the ripple effect
of lower environmental impact supply chains.
environmental performance goals and metrics
Environmental performance data based on
LCA results can provide specific emission and impact targets that are to be
met. As preliminary assessment of environmental impact at project level is
carried out, a baseline can be set defining the expected environmental impact
of an infrastructure project during the life cycle. The initial LCA can be
remodeled with an optimal, lower environmental impact scenario. This can be used
to define numerical goals for project environmental performance.
It is recommended that procurement
activities utilize this information and support the process through integrating
these goals to tender documents and quotation requests. Similar goals may be
established at product system levels of component and material.