LCST

Question 1

Why LCST?

Answer 1

• Tool to tackle the challenge of the interpretation & communication of LCSA results.
• -> depends on goal of the study & target audience
• Compare two alternatives A & B
• -> It transparently displays the “superior alternative” based on individual stakeholder ́s preferences

Question 2

What is LCST?

Answer 2

graphic that can be used to apply the weighting of any of the three parameters

Question 3

How is the sustainability value calculated for the LCST?

Answer 3

• normalize the three values because impact categories have different units (divide impact score by normalization factor:
  one person’s average share of all emission/ resource use in the world during one year (pE))
• multiply the values by a weighting factor (depends on target audience and the person undertaking the assessment)
• sum up the values of the three dimensions

Question 4

What is a challenge in LCST?

Answer 4

e.g. missing /unsufficient data for calculating the references/ normalization factors

Question 5

what can you do very well with LCST?

Answer 5

Compare two alternatives A & B

It transparently displays the “superior alternative” based on individual stakeholder ́s preferences

Question 6

How can you compare two alternatives A & ?B

Answer 6

Determine the equilibrium line where the sustainability value (SV) is equal for both alternatives

SV (A) = SV (B)

depending on the weighting sets: all points below or above the equilibrium line describe where the A or B ist superior to B or A