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EXHIBIT 2 <br /> �OAA Santa Ana Boulevarei <br /> A <br /> /�iZ M r-le Separation Proje <br /> The LOS for unsignalized intersections is also based on the HCM methodology, per City <br /> requirements. The 2000 Highway Capacity Manual includes a detailed discussion of the <br /> procedures used to calculate the LOS based on delay per vehicle for all-way and two-way <br /> stop controlled intersections. The HCM estimates the delay based on the worst approach <br /> at unsignalized intersections. <br /> Table 3-1 includes the LOS ranges for all intersection types. <br /> Table 3-1 Levels of Service for Intersections <br /> Signalized Signalized Unsignalized <br /> Level of Service Intersection Intersection Total Intersection <br /> Volume/Capacity Delay (seconds) Control Delay <br /> Ratio (ICU)' (HCM)2 (seconds) (HCM)2 <br /> A 0.000— 0.600 0 -10 0 — 10 <br /> B 0.601 - 0.700 10 -20 10 - 15 <br /> C 0.701 — 0.800 20 —35 15 -25 <br /> D 0.801 — 0.900 35— 55 25—35 <br /> E 0.901 — 1.000 55—80 35—50 <br /> F 1.000 and up 1 80 or more 50 or more <br /> Notes: <br /> City of Santa Ana General Plan Circulation Element 2 2000 Highway Capacity Manual <br /> The following intersection was analyzed using the ICU methodology: <br /> • Santiago Street/Santa Ana Boulevard <br /> The remaining six intersections were analyzed using the HCM methodology. <br /> 2.2 Standard of Significance <br /> The Circulation Element establishes LOS D as the minimum acceptable level of service <br /> for major intersections in the City, except in major development areas (MDA). The City of <br /> Santa Ana considers LOS E as the threshold for an acceptable level of service for <br /> intersections located within an MDA. The CMP also establishes LOS E as the maximum <br /> level of service for CMP facilities. However, no study area intersections are CMP facilities, <br /> nor are any intersections located within an MDA. Therefore, the LOS D threshold applies <br /> to all study intersections. <br /> Impacts to study area intersections are considered significant if: <br /> • With addition of the proposed project, the LOS at any study area intersection <br /> deteriorates from acceptable to unacceptable LOS (e.g., from LOS C to LOS E); <br /> • Within LOS E or worse, the project increases traffic demand at the study area <br /> intersection by 1% of capacity (ICU increase > 0.01); or <br /> • At unsignalized intersections operating at unacceptable LOS (LOS E or F), the <br /> proposed project adds 1% or more traffic delay (seconds per vehicle). <br /> Traffic/Circulation Study—Final May 18,2012 <br /> Page 7 <br />