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29 <br />Table 13. Triangle Area Transportation Conformity Analysis Matrix (2035 LRTPs) <br /> Emissions comparison years <br /> Area Area emissions Emissions <br />County <br /> model status budget status analysis source 2015' 2017' 2025 2035 horizon <br />Person rural area (all) emissions budget rural spreadsheet 03 03 03 03 <br /> modeled area emissions budget TRM 03 03 03 03 <br /> <br />Granville rural spreadsheet <br /> rural area emissions budget (factored)Z 03 03 03 03 <br /> modeled area emissions budget TRM 03 03 03 03 <br />Franklin rural spreadsheet <br /> rural area emissions budget (factored)2 03 03 03 03 <br /> modeled area emissions budget TRM 03 03 03 03 <br />Johnston rural spreadsheet <br /> rural area emissions budget (factored)2 03 03 03 03 <br />Chatham modeled (all) 3 emissions budget TRM 03 03 03 03 <br />(~) <br />Orange modeled (all) emissions budget TRM 03 03 03 03 <br />Durham modeled (all) emissions budget TRM CO <br />03 03 CO <br />03 CO <br />03 <br />Wake modeled (all) emissions budget TRM CO <br />03 03 CO <br />03 CO <br />03 <br />TRM: Triangle Regional Model 03: Ozone CO: Carbon Monoxide <br />' 2015 is both an LRTP interim year and a CO budget year for Durham and Wake Counties; 2017 is an ozone budget year. <br />z where part of a county is covered by the regional model, the remainder of the county was analyzed using the NCDOT <br />rural spreadsheet, factored by the percentage of county's population that lives outside of the modeled area. <br />s a sensitivity analysis was performed to clarify the effect of the small portion of the non-attainment azea in Chatham <br />County that is outside of the current TRM boundary; it was determined to be insignificant. <br />4.0.4 Emission comparison years (CO) <br />Durham and Wake Counties have CO maintenance requirements under a 2006 updated SIP. This <br />Maintenance Plan.update supplements the pre-existing 2005 budgets with a 2015 budget for each <br />county. Under the update, the pre-existing 2005 budgets apply between 2005 and 2014 and the new <br />2015 budgets apply from 2015 onwazds. Both counties aze entirely within the modeled azea and <br />have emissions budgets under the updated SIP; the TRM was used as the analysis tool. Listed below <br />is specific CO budget and comparison year information: <br />• SIP Budget Years: 2005, 2015 (Durham and Wake Counties) <br />• Comparison Years for CO SIP - 2015, 2025, 2035 (Durham and Wake Counties) <br />21 <br />