Laserfiche WebLink
HCM Signalized Intersection Capacity Analysis Existing Conditions <br />7: E. 14th Street & Fairmont Dr Timing Plan: PM Peak Hour <br />Fairmont/Hesperian Complete Streets Synchro 9 Report <br />DKS Associates <br />Movement EBL EBT EBR WBU WBL WBT WBR NBU NBL NBT NBR SBU <br />Lane Configurations <br />Traffic Volume (vph) 155 818 244 7 148 584 95 4 155 441 129 14 <br />Future Volume (vph) 155 818 244 7 148 584 95 4 155 441 129 14 <br />Ideal Flow (vphpl)1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 <br />Lane Width 12 12 12 12 12 12 11 12 10 12 12 12 <br />Total Lost time (s)3.7 4.6 4.6 3.7 4.6 4.6 3.7 4.6 <br />Lane Util. Factor 1.00 0.95 1.00 0.97 0.95 1.00 1.00 0.95 <br />Frpb, ped/bikes 1.00 1.00 0.95 1.00 1.00 0.97 1.00 0.99 <br />Flpb, ped/bikes 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 <br />Frt 1.00 1.00 0.85 1.00 1.00 0.85 1.00 0.97 <br />Flt Protected 0.95 1.00 1.00 0.95 1.00 1.00 0.95 1.00 <br />Satd. Flow (prot)1770 3539 1510 3433 3539 1485 1652 3389 <br />Flt Permitted 0.95 1.00 1.00 0.95 1.00 1.00 0.95 1.00 <br />Satd. Flow (perm)1770 3539 1510 3433 3539 1485 1652 3389 <br />Peak-hour factor, PHF 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 <br />Adj. Flow (vph)158 835 249 7 151 596 97 4 158 450 132 14 <br />RTOR Reduction (vph) 0 0 191 0 0 0 77 0 0 28 0 0 <br />Lane Group Flow (vph) 158 835 58 0 158 596 20 0 162 554 0 0 <br />Confl. Peds. (#/hr) 27 16 23 <br />Confl. Bikes (#/hr)2 10 <br />Turn Type Prot NA Perm Prot Prot NA Perm Prot Prot NA Prot <br />Protected Phases 3 8 7 7 4 1 1 6 5 <br />Permitted Phases 8 4 <br />Actuated Green, G (s) 10.7 22.0 22.0 8.7 20.0 20.0 12.3 36.2 <br />Effective Green, g (s) 10.7 22.0 22.0 8.7 20.0 20.0 12.3 36.2 <br />Actuated g/C Ratio 0.11 0.23 0.23 0.09 0.21 0.21 0.13 0.38 <br />Clearance Time (s)3.7 4.6 4.6 3.7 4.6 4.6 3.7 4.6 <br />Vehicle Extension (s) 2.0 2.0 2.0 2.0 2.0 2.0 2.0 4.0 <br />Lane Grp Cap (vph) 199 819 349 314 745 312 213 1291 <br />v/s Ratio Prot c0.09 c0.24 0.05 0.17 c0.10 c0.16 <br />v/s Ratio Perm 0.04 0.01 <br />v/c Ratio 0.79 1.02 0.17 0.50 0.80 0.07 0.76 0.43 <br />Uniform Delay, d1 41.1 36.5 29.2 41.1 35.6 30.0 39.9 21.8 <br />Progression Factor 1.00 1.00 1.00 1.00 1.00 1.00 0.84 0.70 <br />Incremental Delay, d2 18.1 36.5 0.1 0.5 5.8 0.0 13.0 1.0 <br />Delay (s)59.2 73.0 29.2 41.6 41.4 30.1 46.4 16.2 <br />Level of Service E E C D D C D B <br />Approach Delay (s)62.4 40.1 22.7 <br />Approach LOS E D C <br />Intersection Summary <br />HCM 2000 Control Delay 45.1 HCM 2000 Level of Service D <br />HCM 2000 Volume to Capacity ratio 0.75 <br />Actuated Cycle Length (s) 95.0 Sum of lost time (s)16.6 <br />Intersection Capacity Utilization 76.7% ICU Level of Service D <br />Analysis Period (min) 15 <br />c Critical Lane Group <br />195