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HCM Signalized Intersection Capacity Analysis Existing Conditions <br />11: Hesperian Bl/Hesperian Blvd & Springlake Dr Timing Plan: PM Peak Hour <br />Fairmont/Hesperian Complete Streets Synchro 9 Report <br />DKS Associates <br />Movement EBL EBR NBL NBT SBT SBR <br />Lane Configurations <br />Traffic Volume (vph) 222 434 143 1050 1106 222 <br />Future Volume (vph) 222 434 143 1050 1106 222 <br />Ideal Flow (vphpl)1900 1900 1900 1900 1900 1900 <br />Lane Width 12 12 10 11 11 11 <br />Total Lost time (s)4.6 4.6 4.0 4.9 4.9 <br />Lane Util. Factor 0.97 0.91 1.00 0.91 0.91 <br />Frpb, ped/bikes 0.99 0.99 1.00 1.00 0.99 <br />Flpb, ped/bikes 1.00 1.00 1.00 1.00 1.00 <br />Frt 0.93 0.85 1.00 1.00 0.97 <br />Flt Protected 0.98 1.00 0.95 1.00 1.00 <br />Satd. Flow (prot)3290 1450 1668 4916 4820 <br />Flt Permitted 0.98 1.00 0.95 1.00 1.00 <br />Satd. Flow (perm)3290 1450 1668 4916 4820 <br />Peak-hour factor, PHF 0.94 0.94 0.94 0.94 0.94 0.94 <br />Adj. Flow (vph)236 462 152 1117 1177 236 <br />RTOR Reduction (vph) 164 194 0 0 16 0 <br />Lane Group Flow (vph) 303 37 152 1117 1397 0 <br />Confl. Peds. (#/hr) 2 5 5 <br />Confl. Bikes (#/hr)1 6 <br />Heavy Vehicles (%)1% 0% 1% 2% 1% 0% <br />Turn Type Prot Perm Prot NA NA <br />Protected Phases 4 5 2 6 <br />Permitted Phases 4 <br />Actuated Green, G (s) 20.7 20.7 17.1 99.8 78.7 <br />Effective Green, g (s) 20.7 20.7 17.1 99.8 78.7 <br />Actuated g/C Ratio 0.16 0.16 0.13 0.77 0.61 <br />Clearance Time (s)4.6 4.6 4.0 4.9 4.9 <br />Vehicle Extension (s) 4.0 4.0 3.0 4.0 4.0 <br />Lane Grp Cap (vph) 523 230 219 3773 2917 <br />v/s Ratio Prot c0.09 c0.09 0.23 c0.29 <br />v/s Ratio Perm 0.03 <br />v/c Ratio 0.58 0.16 0.69 0.30 0.48 <br />Uniform Delay, d1 50.6 47.1 54.0 4.5 14.3 <br />Progression Factor 1.00 1.00 1.00 1.00 1.15 <br />Incremental Delay, d2 1.9 0.4 9.2 0.2 0.2 <br />Delay (s) 52.5 47.6 63.1 4.7 16.6 <br />Level of Service D D E A B <br />Approach Delay (s) 50.9 11.7 16.6 <br />Approach LOS D B B <br />Intersection Summary <br />HCM 2000 Control Delay 21.8 HCM 2000 Level of Service C <br />HCM 2000 Volume to Capacity ratio 0.53 <br />Actuated Cycle Length (s) 130.0 Sum of lost time (s)13.5 <br />Intersection Capacity Utilization 56.5% ICU Level of Service B <br />Analysis Period (min)15 <br />c Critical Lane Group <br />500