Goal
Reuse as much of the existing facility as practical.
Requirements
Maintain at least 80% or 95% of the existing pavement material by estimated volume in the new pavement structure. The “existing pavement material” is defined as all material in the existing pavement structure to include surfacing and base material of the pavement structure that is accessible to automobiles. This includes travelled lanes and shoulders. Other paved structures such as bicycle lanes and paved medians are only counted if they are directly accessible by automobiles and not separated by a physical barrier such as a planting strip, median or curb. Sidewalks, existing subgrade (natural in-situ material) and fill material that is not explicitly part of the pavement structure are excluded. The materials considered can include but are not limited to hot mix asphalt (HMA), portland cement concrete (PCC), unbound granular base material and stabilized base material.
Two points are awarded if at least 80% of the existing pavement structure is reused.
Three points are awarded if at least 95% of the existing pavement structure is reused.
Documentation
MR-2 Pavement Reuse
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Comment on credit MR-2
MR-2
GOAL: The use of “facility” in the context of roads. Is this industry standard language? If not, does this need to be defined under Detail (Credit Requirements)? Get the impression from the credit requirements that it is pavement material only and does not include culverts, signage and other road related items. Is this correct?
Executive Order 13423
Strengthening Federal Environmental, Energy, and Transportation Management
NPS-DN
MR-2
Example: Reuse vs. Recycle, page 2 , second bullet
Add “ Crushed aggregate could also potentially be reused for shoulder work, i.e. aggregate/ topsoil.
Example: Reuse vs. Recycle, page 2 , second bullet
EO 13123,EO 13101, EO 13148,
NPS Management Policies Section 1.8
GENERAL
This section applies to urban and rural roads. No need to add additional rural case studies.
Example: Reuse vs. Recycle, page 2 , second bullet
EO 13123,EO 13101, EO 13148,
NPS Management Policies Section 1.8
NPS-KV
MR-2 The calculations of % reuse of existing pavement materials should exclude materials removed from the site in a project that reduces the surface area of paved roadway.
NPS-BH
MR-2 Description for 4 points and 5 points: Should this state Reuse at least…… satisfactory engineering qualities “as determined by a professional engineer”.
NPS-DN
Greenroads Manual Version 1.0 Review
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