LowEmissionAsphalt-136pg-WhitePaper-May2023

P a g e | 123 Table 20 – PlusTi ® AC GHG Removal Breakdown Per CLM (Mt CO 2 e) Per Year 10 Year Vehicle CO 2 258 2,600 17,160 Vehicle NOx 259 980 6,468 Tailpipe Emissions 3,580 23,628 Solar Reflectance 260 800 5,280 Vehicle RAMP 261 250 1,650 Maltene Replacement 262 150 1,500 Total 4,060 32,058 Source: BlackwallPartners LLC Model Assumptions: CLM 260 days 25,000 AADT 90% light vehicle, 10% truck 10-year terminal value 50% What is not included in (Table 20) is the direct health and ecological value of the removal of RAMP, NOx, and the mitigation of UHI via roadway photocatalysis. Only their estimated radiative forcing (RF) impact is included or GWP value. A comparison of the potential GWP offsets of PlusTi TM on AC and PCC surface courses is found in (Figure 76) . On both types of pavements, complete offsetting is easily achieved and even a net carbon asset can be created. 258 EPA; Texas A&M Transportation Institute (TTI), International Standard ISO 22197-1 Test method for air- purification performance of semiconducting photocatalytic materials . 259 EPA; 60 Co 2 e per Dahlmann K et al, Quantifying the contributions of individual NOx sources to the trend in ozone radiative forcing , DLR Institute for Atmospheric Physics, Oberpfaffenhofen, Germany, February 2011. 260 Texas A&M Transportation Institute (TTI) and Massachusetts Institute of Technology (MIT) – MIT Concrete Sustainability Hub (CSHub): Solar Reflectance Index (SRI) ASTM E1980-11 Standard Practice for Calculating Solar Reflectance Index of Horizontal and Low-Sloped Opaque Surfaces ; converted into radiative forcing (RF) or GWP/ CO 2 e. 261 Shen M, Huang W, et al, (Micro)plastic crisis: Un-ignorable contribution to global greenhouse emissions and climate change, May 2020. 262 A.R.A.1-Ti CO 2 e AC abatement; National Center for Pavement Preservation (NCPP); Colas S.A.; Chehovits J and Galehouse L, Energy Usage and Greenhouse Gas Emissions of Pavement Preservation Processes for Asphalt Pavements, Transportation Research Board , 2010; Ergon, Inc.; and Multi-year MRT Sustainability Study: Charleston County (SC): Pavement Technology, Inc.; APART.