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HCM Signalized Intersection Capacity Analysis Approved No Project PM 16: Sunol Blvd & I-680 SB Synchro 11 Report Page 15 Movement EBL EBT WBT WBR SBL SBR Lane Configurations Traffic Volume (vph)20 760 190 220 300 120 Future Volume (vph)20 760 190 220 300 120 Ideal Flow (vphpl)1900 1900 1900 1900 1900 1900 Total Lost time (s)4.0 4.0 4.0 4.0 4.0 4.0 Lane Util. Factor 1.00 1.00 1.00 0.88 1.00 1.00 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 1863 1863 2787 1770 1583 Flt Permitted 0.95 1.00 1.00 1.00 0.95 1.00 Satd. Flow (perm)1770 1863 1863 2787 1770 1583 Peak-hour factor, PHF 0.95 0.95 0.95 0.95 0.95 0.95 Adj. Flow (vph) 21 800 200 232 316 126 RTOR Reduction (vph) 0 0 0 111 0 94 Lane Group Flow (vph) 21 800 200 121 316 32 Turn Type Prot NA NA Perm Prot Perm Protected Phases 1 6 2 4 Permitted Phases 2 4 Actuated Green, G (s) 1.4 35.3 29.9 29.9 14.1 14.1 Effective Green, g (s) 1.4 36.6 31.2 31.2 15.4 15.4 Actuated g/C Ratio 0.02 0.61 0.52 0.52 0.26 0.26 Clearance Time (s)4.0 5.3 5.3 5.3 5.3 5.3 Vehicle Extension (s) 3.0 3.0 3.0 3.0 3.0 3.0 Lane Grp Cap (vph)41 1136 968 1449 454 406 v/s Ratio Prot 0.01 c0.43 0.11 c0.18 v/s Ratio Perm 0.04 0.02 v/c Ratio 0.51 0.70 0.21 0.08 0.70 0.08 Uniform Delay, d1 29.0 8.0 7.7 7.2 20.2 16.9 Progression Factor 1.05 1.12 0.59 0.17 1.00 1.00 Incremental Delay, d2 10.3 3.6 0.1 0.0 4.6 0.1 Delay (s) 40.6 12.6 4.7 1.2 24.8 17.0 Level of Service D B A A C B Approach Delay (s)13.3 2.8 22.6 Approach LOS B A C Intersection Summary HCM 2000 Control Delay 13.1 HCM 2000 Level of Service B HCM 2000 Volume to Capacity ratio 0.76 Actuated Cycle Length (s) 60.0 Sum of lost time (s)12.0 Intersection Capacity Utilization 63.3% ICU Level of Service B Analysis Period (min)15 c Critical Lane Group