HCM Unsignalized Intersection Capacity Analysis 6: Brian Street & LC 111 5/26/2009

Transcription

1 6: Brian Street & LC 111 5/26/2009 Movement EBL EBR NBL NBT SBT SBR Volume (veh/h) Sign Control Stop Free Free Grade 0% 0% 0% Peak Hour Factor Hourly flow rate (vph) Upstream signal (ft) vc, conflicting volume vcu, unblocked vol tc, single (s) tf (s) p0 queue free % cm capacity (veh/h) Direction, Lane # EB 1 EB 2 NB 1 SB 1 SB 2 Volume Total Volume Left Volume Right csh Volume to Capacity Queue Length 95th (ft) Control Delay (s) Lane LOS C A A Approach Delay (s) Approach LOS C Average Delay 3.5 Intersection Capacity Utilization 40.8% ICU Level of Service A LC 111 Corridor Study 5/26/2009 AM Existing

2 HCM Signalized Intersection Capacity Analysis 3: 271st Street & LC 111 5/26/2009 Volume (vph) Ideal Flow (vphpl) Total Lost time (s) Lane Util. Factor Frt Flt Protected Satd. Flow (prot) Flt Permitted Satd. Flow (perm) Peak-hour factor, PHF Adj. Flow (vph) RTOR Reduction (vph) Lane Group Flow (vph) Turn Type Perm pm+pt Perm Perm Perm Protected Phases Permitted Phases Actuated Green, G (s) Effective Green, g (s) Actuated g/c Ratio Clearance Time (s) Lane Grp Cap (vph) v/s Ratio Prot c v/s Ratio Perm c c v/c Ratio Uniform Delay, d Progression Factor Incremental Delay, d Delay (s) Level of Service C B A B B B Approach Delay (s) Approach LOS C A B B HCM Average Control Delay 16.1 HCM Level of Service B HCM Volume to Capacity ratio 0.62 Actuated Cycle Length (s) 50.0 Sum of lost time (s) 12.0 Intersection Capacity Utilization 66.7% ICU Level of Service C c Critical Lane Group LC 111 Corridor Study 5/26/2009 AM Existing

3 12: First Street & LC 111 5/26/2009 Sign Control Stop Stop Stop Stop Volume (vph) Peak Hour Factor Hourly flow rate (vph) Direction, Lane # EB 1 EB 2 WB 1 NB 1 SB 1 Volume Total (vph) Volume Left (vph) Volume Right (vph) Hadj (s) Departure Headway (s) Degree Utilization, x Capacity (veh/h) Control Delay (s) Approach Delay (s) Approach LOS B A B B Delay 12.0 HCM Level of Service B Intersection Capacity Utilization 52.4% ICU Level of Service A LC 111 Corridor Study 5/26/2009 PM Existing

4 9: Kevin Drive & LC 111 5/26/2009 Volume (veh/h) Sign Control Stop Stop Free Free Grade 0% 0% 0% 0% Peak Hour Factor Hourly flow rate (vph) Upstream signal (ft) 1173 vc, conflicting volume vcu, unblocked vol tc, single (s) tf (s) p0 queue free % cm capacity (veh/h) Direction, Lane # EB 1 WB 1 NB 1 SB 1 SB 2 Volume Total Volume Left Volume Right csh Volume to Capacity Queue Length 95th (ft) Control Delay (s) Lane LOS C B A A Approach Delay (s) Approach LOS C B Average Delay 2.5 Intersection Capacity Utilization 39.6% ICU Level of Service A LC 111 Corridor Study 5/26/2009 PM Existing

5 6: Brian Street & LC 111 5/26/2009 Movement EBL EBR NBL NBT SBT SBR Volume (veh/h) Sign Control Stop Free Free Grade 0% 0% 0% Peak Hour Factor Hourly flow rate (vph) Upstream signal (ft) vc, conflicting volume vcu, unblocked vol tc, single (s) tf (s) p0 queue free % cm capacity (veh/h) Direction, Lane # EB 1 EB 2 NB 1 SB 1 SB 2 Volume Total Volume Left Volume Right csh Volume to Capacity Queue Length 95th (ft) Control Delay (s) Lane LOS C B A Approach Delay (s) Approach LOS C Average Delay 2.6 Intersection Capacity Utilization 55.6% ICU Level of Service B LC 111 Corridor Study 5/26/2009 PM Existing

6 HCM Signalized Intersection Capacity Analysis 3: 271st Street & LC 111 5/26/2009 Volume (vph) Ideal Flow (vphpl) Total Lost time (s) Lane Util. Factor Frt Flt Protected Satd. Flow (prot) Flt Permitted Satd. Flow (perm) Peak-hour factor, PHF Adj. Flow (vph) RTOR Reduction (vph) Lane Group Flow (vph) Turn Type Perm pm+pt Perm Perm Perm Protected Phases Permitted Phases Actuated Green, G (s) Effective Green, g (s) Actuated g/c Ratio Clearance Time (s) Lane Grp Cap (vph) v/s Ratio Prot c v/s Ratio Perm 0.11 c c0.14 v/c Ratio Uniform Delay, d Progression Factor Incremental Delay, d Delay (s) Level of Service C B A B B C Approach Delay (s) Approach LOS C B B C HCM Average Control Delay 15.0 HCM Level of Service B HCM Volume to Capacity ratio 0.63 Actuated Cycle Length (s) 60.0 Sum of lost time (s) 8.0 Intersection Capacity Utilization 63.7% ICU Level of Service B c Critical Lane Group LC 111 Corridor Study 5/26/2009 PM Existing

7 12: First Street & LC 111 6/4/2009 Sign Control Stop Stop Stop Stop Volume (vph) Peak Hour Factor Hourly flow rate (vph) Direction, Lane # EB 1 EB 2 WB 1 NB 1 SB 1 Volume Total (vph) Volume Left (vph) Volume Right (vph) Hadj (s) Departure Headway (s) Degree Utilization, x Capacity (veh/h) Control Delay (s) Approach Delay (s) Approach LOS B B C C Delay 16.2 HCM Level of Service C Intersection Capacity Utilization 60.1% ICU Level of Service B LC 111 Corridor Study 5/26/2009 AM 2035, no improvements

8 9: Kevin Drive & LC 111 6/4/2009 Volume (veh/h) Sign Control Stop Stop Free Free Grade 0% 0% 0% 0% Peak Hour Factor Hourly flow rate (vph) Upstream signal (ft) vc, conflicting volume vcu, unblocked vol tc, single (s) tf (s) p0 queue free % cm capacity (veh/h) Direction, Lane # EB 1 WB 1 NB 1 SB 1 SB 2 Volume Total Volume Left Volume Right csh Volume to Capacity Queue Length 95th (ft) Control Delay (s) Lane LOS D B A A Approach Delay (s) Approach LOS D B Average Delay 4.5 Intersection Capacity Utilization 52.9% ICU Level of Service A LC 111 Corridor Study 5/26/2009 AM 2035, no improvements

9 6: Brian Street & LC 111 6/4/2009 Volume (veh/h) Sign Control Stop Stop Free Free Grade 0% 0% 0% 0% Peak Hour Factor Hourly flow rate (vph) Upstream signal (ft) vc, conflicting volume vcu, unblocked vol tc, single (s) tf (s) p0 queue free % cm capacity (veh/h) Direction, Lane # EB 1 EB 2 WB 1 WB 2 NB 1 SB 1 SB 2 Volume Total Volume Left Volume Right csh Volume to Capacity Queue Length 95th (ft) Control Delay (s) Lane LOS F C D B A A Approach Delay (s) Approach LOS F C Average Delay 47.3 Intersection Capacity Utilization 74.6% ICU Level of Service D LC 111 Corridor Study 5/26/2009 AM 2035, no improvements