Laserfiche WebLink
HCM Signalized Intersection Capacity Analysis Approved No Project AM <br />13: Tassajara Rd & I-580 WB <br />Synchro 11 Report <br />Page 12 <br />Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR <br />Lane Configurations <br />Traffic Volume (vph)0 0 0 500 0 260 0 1350 480 0 1040 950 <br />Future Volume (vph)0 0 0 500 0 260 0 1350 480 0 1040 950 <br />Ideal Flow (vphpl)1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 <br />Total Lost time (s)4.0 4.0 4.0 2.1 4.0 4.0 <br />Lane Util. Factor 0.97 0.88 0.95 1.00 0.91 1.00 <br />Frt 1.00 0.85 1.00 0.85 1.00 0.85 <br />Flt Protected 0.95 1.00 1.00 1.00 1.00 1.00 <br />Satd. Flow (prot)3433 2787 3539 1583 5085 1583 <br />Flt Permitted 0.95 1.00 1.00 1.00 1.00 1.00 <br />Satd. Flow (perm)3433 2787 3539 1583 5085 1583 <br />Peak-hour factor, PHF 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 <br />Adj. Flow (vph) 0 0 0 526 0 274 0 1421 505 0 1095 1000 <br />RTOR Reduction (vph)000004700194000 <br />Lane Group Flow (vph) 0 0 0 526 0 227 0 1421 311 0 1095 1000 <br />Turn Type Prot Perm NA Perm NA Free <br />Protected Phases 4 6 2 <br />Permitted Phases 4 4 6 Free <br />Actuated Green, G (s)15.6 15.6 33.1 33.1 33.1 60.0 <br />Effective Green, g (s)17.0 17.0 35.0 36.9 35.0 60.0 <br />Actuated g/C Ratio 0.28 0.28 0.58 0.61 0.58 1.00 <br />Clearance Time (s)5.4 5.4 5.9 5.9 5.9 <br />Vehicle Extension (s)5.0 5.0 5.0 5.0 5.0 <br />Lane Grp Cap (vph)972 789 2064 973 2966 1583 <br />v/s Ratio Prot 0.15 0.40 0.22 <br />v/s Ratio Perm 0.08 0.20 c0.63 <br />v/c Ratio 0.54 0.29 0.69 0.32 0.37 0.63 <br />Uniform Delay, d1 18.2 16.8 8.7 5.5 6.6 0.0 <br />Progression Factor 1.00 1.00 1.00 1.00 1.00 1.00 <br />Incremental Delay, d2 1.1 0.4 1.9 0.9 0.4 1.9 <br />Delay (s)19.3 17.2 10.6 6.4 7.0 1.9 <br />Level of Service B B B A A A <br />Approach Delay (s)0.0 18.6 9.5 4.6 <br />Approach LOS ABAA <br />Intersection Summary <br />HCM 2000 Control Delay 8.9 HCM 2000 Level of Service A <br />HCM 2000 Volume to Capacity ratio 0.73 <br />Actuated Cycle Length (s) 60.0 Sum of lost time (s)8.0 <br />Intersection Capacity Utilization 58.2% ICU Level of Service B <br />Analysis Period (min)15 <br />c Critical Lane Group