Tsai sustainability requirements, such as the LEED green building

Tsai & Chang,( 2012) proposed
a framework to develop highway-related sustainable items in addition to
reviewing sustainability requirements and sustainable construction projects as
shown in Figure 3. The first step is to review sustainability requirements,
such as the LEED green building system, the Global Reporting Initiative (GRI)
sustainability reporting guidelines, and relevant studies, to understand their
evaluation principles, credits, and environmental indicators as well as look
for possible sustainable items. Next, to find ways to add sustainability into
highway designs, construction design practices were reviewed from the bottom-up
by analyzing the compendium from AASHTO (American Association of State Highway
and Transportation Officials) as well as roadway projects in Japan and Taiwan.
Subsequently, sustainable items were identified from sustainable requirements
and construction design practices and evaluated as to whether they were
applicable, through interviewing experience practitioners including designers,
constructors, and maintenance owners. Applicable sustainable items were then
developed after clarifying the sustainability issues involved in designing
highways and a checklist consisting of the 60 developed sustainable items was
created to validate their applicability to highway design. They contributed by
developing sustainable items and established a checklist consisting of
sustainable items facilitates designers in efficiently deciding which items
they can incorporate into design. The method for establishing the framework and
developing sustainable items can be followed by other types of construction projects,
not only the highway projects as the mentioned example. There is a limitation
in their research concerning the perspectives of sustainability, because the viewpoints
on sustainable items were collected only from the designers, owners and
contractors of the construction profession and it is possible that the
preferred items can be different if interviewed with motorists, community or