Resource Allocation & Materials Flashcards

A project team discovers that a specified aggregate source is located 500 miles away while an equivalent source exists 30 miles from the site. From a resource allocation perspective, which factor MOST justifies choosing the closer source?

Answer: Shorter haul distances reduce transportation-related greenhouse gas emissions

Reducing haul distance cuts fuel consumption and emissions, directly lowering the project's transportation carbon footprint.

Which of the following BEST defines 'embodied carbon' in infrastructure materials?

Answer: CO₂ equivalent emissions from material extraction, manufacturing, transport, and installation

Embodied carbon captures all upstream and process-related GHG emissions associated with producing and placing a material, excluding operational emissions.

When a project specifies 'salvaged' or 'reclaimed' materials, what sustainability outcome is PRIMARILY achieved?

Answer: Extending the useful life of existing materials while avoiding the impacts of producing new ones

Salvaged materials displace new production, conserving raw materials and the energy and emissions required to manufacture virgin alternatives.

What does the term 'take-back program' mean in the context of sustainable material procurement?

Answer: A supplier agreement to reclaim and recycle or reuse a product at the end of its service life

Take-back programs shift end-of-life responsibility to manufacturers, incentivizing durable, recyclable product design and reducing landfill waste.

A project team selects a lower-embodied-carbon concrete mix that requires a longer curing time. This decision BEST illustrates which trade-off in resource allocation?

Answer: Environmental performance versus construction schedule

Choosing a supplementary cementitious material mix reduces carbon impacts but may extend the schedule, requiring the team to balance sustainability goals with delivery constraints.

In Envision's resource allocation framework, 'responsible sourcing' of materials refers to:

Answer: Selecting materials from suppliers who follow environmental, social, and ethical standards throughout their supply chain

Responsible sourcing evaluates supplier practices including environmental stewardship, labor rights, and community impact across the entire supply chain.

Which of the following scenarios BEST demonstrates 'industrial symbiosis' applied to construction materials?

Answer: A power plant supplying its fly ash byproduct to a nearby concrete manufacturer as a cement replacement

Industrial symbiosis creates mutually beneficial material exchanges between industries, turning one facility's waste stream into another's valuable input.