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HCM Signalized Intersection Capacity Analysis Approved Plus Project AM 15: I-680 NB & Sunol Blvd Synchro 11 Report Page 15 Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations Traffic Volume (vph) 110 450 0 0 1270 470 30 0 610 0 0 0 Future Volume (vph) 110 450 0 0 1270 470 30 0 610 0 0 0 Ideal Flow (vphpl)1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 Total Lost time (s)4.0 4.0 4.0 4.0 4.0 2.7 Lane Util. Factor 1.00 1.00 0.91 1.00 1.00 0.88 Frt 1.00 1.00 1.00 0.85 1.00 0.85 Flt Protected 0.95 1.00 1.00 1.00 0.95 1.00 Satd. Flow (prot)1770 1845 5085 1583 1543 2787 Flt Permitted 0.95 1.00 1.00 1.00 0.95 1.00 Satd. Flow (perm)1770 1845 5085 1583 1543 2787 Peak-hour factor, PHF 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 Adj. Flow (vph) 117 479 0 0 1351 500 32 0 649 0 0 0 RTOR Reduction (vph)00000229000000 Lane Group Flow (vph) 117 479 0 0 1351 271 0 32 649 0 0 0 Heavy Vehicles (%)2% 3% 2% 2% 2% 2% 17% 2% 2% 2% 2% 2% Turn Type Prot NA NA Perm Split NA Free Protected Phases 1 6 2 4 4 Permitted Phases 2 Free Actuated Green, G (s) 6.3 33.4 23.1 23.1 1.0 45.0 Effective Green, g (s) 6.3 34.7 24.4 24.4 2.3 45.0 Actuated g/C Ratio 0.14 0.77 0.54 0.54 0.05 1.00 Clearance Time (s)4.0 5.3 5.3 5.3 5.3 Vehicle Extension (s) 3.0 3.0 3.0 3.0 3.0 Lane Grp Cap (vph) 247 1422 2757 858 78 2787 v/s Ratio Prot c0.07 0.26 c0.27 0.02 v/s Ratio Perm 0.17 c0.23 v/c Ratio 0.47 0.34 0.49 0.32 0.41 0.23 Uniform Delay, d1 17.8 1.6 6.4 5.7 20.7 0.0 Progression Factor 1.00 1.00 1.00 1.00 1.00 1.00 Incremental Delay, d2 1.4 0.1 0.6 1.0 3.5 0.2 Delay (s)19.3 1.7 7.0 6.7 24.2 0.2 Level of Service B A A A C A Approach Delay (s)5.2 6.9 1.3 0.0 Approach LOS AAAA Intersection Summary HCM 2000 Control Delay 5.4 HCM 2000 Level of Service A HCM 2000 Volume to Capacity ratio 0.50 Actuated Cycle Length (s) 45.0 Sum of lost time (s)12.0 Intersection Capacity Utilization 49.4% ICU Level of Service A Analysis Period (min) 15 c Critical Lane Group