HCS+: Signalized Intersections Release 5.2
Analyst: Luisa Santomaso
Inter.: Viale delle Cascine Agency: Dip.Vie e Trasporti Area Type: All other areas
Date: 03/03/2009 Jurisd:
Period: Year: 2009
Project ID: Verifica E/W St: Viale delle Cascine N/S
St: Via Aurelia _________________________SIGNALIZED INTERSECTION SUMMARY_______________________ | Eastbound | Westbound | Northbound | Southbound | | L T R | L T R | L T R | L T R | |_______________|_______________|____________ ___|_______________| No. Lanes | 0 1 1 | 0 1 1 | 0 1 0 | 0 1 0 | LGConfig | LT R | LT R | LTR | LTR | Volume |112 180 80 |190 200 28 |86 598 294 |120 624 32 | Lane Width | 3.6 3.6 | 3.6 3.6 | 3.6 | 3.6 | RTOR Vol | 0 | 0 | 0 | 0 | _____________________________________________ __________________________________
Duration 0.25 Area Type: All other areas ______________________________Signal Operations________________________________ Phase Combination 1 2 3 4 | 5 6 7 8 EB Left P | NB Left P Thru P | Thru P Right P | Right P Peds | Peds WB Left P | SB Left P Thru P | Thru P Right P | Right P Peds | Peds NB Right | EB Right SB Right | WB Right Green 25.0 80.0 Yellow 5.0 5.0 All Red 3.0 3.0 Cycle Length: 121.0 secs
____________________Intersection Performance Summary___________________________
Appr/ Lane Adj Sat Ratios Lane Group Approach
Lane Group Flow Rate __________ __________ ___________
Grp Capacity (s) v/c g/C Delay LOS Delay LOS
_____________________________________________ __________________________________ Eastbound LT 42 199 7.48 0.21 3011 F 2372 F R 322 1530 0.27 0.21 42.0 D Westbound LT 132 627 3.17 0.21 1046 F 978.4 F R 322 1530 0.09 0.21 39.0 D Northbound LTR 983 1478 1.07 0.67 69.3 E 69.3 E Southbound LTR 808 1214 1.03 0.67 60.5 E 60.5 E Intersection Delay = 552.9 (sec/veh)
Intersection LOS = F _____________________________________________ __________________________________ HCS+: Signalized Intersections Release 5.2 Phone: Fax: E-Mail: ______________________________OPERATIONAL ANALYSIS_____________________________ Analyst: Luisa Santomaso Intersection: Viale delle Cascine Agency/Co.: Dip.Vie e Trasporti Area Type: All other areas Date Performed: 03/03/2009 Jurisdiction: Analysis Time Period: Analysis Year: 2009 Project ID: Verifica E/W St: Viale delle Cascine N/S
St: Via Aurelia ________________________________VOLUME DATA____________________________________ | Eastbound | Westbound | Northbound | Southbound | | L T R | L T R | L T R | L T R | |_______________|_______________|____________ ___|_______________| Volume |112 180 80 |190 200 28 |86 598 294 |120 624 32 | % Heavy Veh|0 0 0 |0 0 0 |0 0 0 |0 0 0 | PHF |0.93 0.93 0.93 |0.93 0.93 0.93 |0.93 0.93 0.93 |0.93 0.93 0.93 | PK 15 Vol |30 48 22 |51 54 8 |23 161 79 |32 168 9 | Hi Ln Vol | | | | | % Grade | 0 | 0 | 0 | 0 | Ideal Sat | 1800 1800 | 1800 1800 | 1800 | 1800 | ParkExist | | | | | NumPark | | | | | No. Lanes | 0 1 1 | 0 1 1 | 0 1 0 | 0 1 0 | LGConfig | LT R | LT R | LTR | LTR | Lane Width | 3.6 3.6 | 3.6 3.6 | 3.6 | 3.6 | RTOR Vol | 0 | 0 | 0 | 0 | Adj Flow | 314 86 | 419 30 | 1051 | 834 | %InSharedLn| | | | | Prop LTs | 0.382 | 0.487 | 0.088 | 0.155 | Prop RTs | 0.000 1.000 | 0.000 1.000 | 0.301 | 0.041 | Peds Bikes| 0 | 0 | 0 | 0 | Buses | 0 0 | 0 0 | 0 | 0 | %InProtPhase | | | |
Duration 0.25 Area Type: All other areas
_____________________________OPERATING
| Eastbound | Westbound | Northbound | Southbound | | L T R | L T R | L T R | L T R | |_______________|_______________|____________ ___|_______________| Init Unmet | 0.0 0.0 | 0.0 0.0 | 0.0 | 0.0 | Arriv. Type| 3 3 | 3 3 | 3 | 3 | Unit Ext. | 3.0 3.0 | 3.0 3.0 | 3.0 | 3.0 | I Factor | 1.000 | 1.000 | 1.000 | 1.000 | Lost Time | 2.0 2.0 | 2.0 2.0 | 2.0 | 2.0 | Ext of g | 2.5 2.5 | 2.5 2.5 | 2.5 | 2.5 | Ped Min g | 3.2 | 3.2 | 3.2 | 3.2 | _________________________________PHASE DATA____________________________________ Phase Combination 1 2 3 4 | 5 6 7 8 EB Left P | NB Left P Thru P | Thru P Right P | Right P Peds | Peds WB Left P | SB Left P Thru P | Thru P Right P | Right P Peds | Peds NB Right | EB Right | SB Right | WB Right | | Green 25.0 80.0 Yellow 5.0 5.0 All Red 3.0 3.0
Cycle Length: 121.0 secs
_________________VOLUME ADJUSTMENT AND
SATURATION FLOW WORKSHEET_______________
Volume Adjustment | Eastbound | Westbound | Northbound | Southbound | | L T R | L T R | L T R | L T R | |_______________|_______________|____________ ___|_______________| Volume, V |112 180 80 |190 200 28 |86 598 294 |120 624 32 | PHF |0.93 0.93 0.93 |0.93 0.93 0.93 |0.93 0.93 0.93 |0.93 0.93 0.93 | Adj flow |120 194 86 |204 215 30 |92 643 316 |129 671 34 | No. Lanes | 0 1 1 | 0 1 1 | 0 1 0 | 0 1 0 | Lane group | LT R | LT R | LTR | LTR | Adj flow | 314 86 | 419 30 | 1051 | 834 | Prop LTs | 0.382 | 0.487 | 0.088 | 0.155 | Prop RTs | 0.000 1.000 | 0.000 1.000 | 0.301 | 0.041 | Saturation Flow Rate (see Exhibit 16-7 to
determine the adjustment factors)____ Eastbound Westbound Northbound Southbound LG LT R LT R LTR LTR So 1800 1800 1800 1800 1800 1800 Lanes 0 1 1 0 1 1 0 1 0 0 1 0 fW 1.000 1.000 1.000 1.000 1.000 1.000 fHV 1.000 1.000 1.000 1.000 1.000 1.000 fG 1.000 1.000 1.000 1.000 1.000 1.000 fP 1.000 1.000 1.000 1.000 1.000 1.000 fBB 1.000 1.000 1.000 1.000 1.000 1.000 fA 1.000 1.000 1.000 1.000 1.000 1.000 fLU 1.000 1.000 1.000 1.000 1.000 1.000 fRT 1.000 0.850 1.000 0.850 0.959 0.994 fLT 0.110 0.349 0.856 0.678 Sec. fLpb 1.000 1.000 1.000 1.000 fRpb 1.000 1.000 1.000 1.000 1.000 1.000 S 199 1530 627 1530 1478 1214 Sec. _________________________CAPACITY AND LOS
WORKSHEET____________________________
Capacity Analysis and Lane Group Capacity Adj Adj Sat Flow
Green --Lane Group--
Appr/ Lane Flow Rate Flow Rate Ratio Ratio Capacity v/c Mvmt Group (v) (s) (v/s) (g/C) (c) Ratio _____________________________________________ __________________________________ Eastbound Prot Perm Left Prot Perm Thru LT 314 199 # 1.58 0.21 42 7.48 Right R 86 1530 0.06 0.21 322 0.27 Westbound Prot Perm Left Prot Perm Thru LT 419 627 0.67 0.21 132 3.17 Right R 30 1530 0.02 0.21 322 0.09 Northbound Prot Perm Left Prot Perm Thru LTR 1051 1478 # 0.71 0.67 983 1.07 Right Southbound Prot Perm Left Prot Perm Thru LTR 834 1214 0.69 0.67 808 1.03 Right _____________________________________________ __________________________________
Sum of flow ratios for critical lane groups, Yc = Sum (v/s) = 2.29
Total lost time per cycle, L = 15.00 sec Critical flow rate to capacity ratio,
Xc = (Yc)(C)/(C-L) = 2.61
Control Delay and LOS
Determination________________________________ ____________
Appr/ Ratios Unf Prog Lane
Lane _________ Del Adj Grp Factor Del Del __________ ___________
Grp v/c g/C d1 Fact Cap k d2 d3 Delay LOS Delay LOS
_____________________________________________ __________________________________ Eastbound LT 7.48 0.21 47.8 1.000 42 0.50 2963 0.0 3011 F 2372 F R 0.27 0.21 39.9 1.000 322 0.50 2.0 0.0 42.0 D Westbound LT 3.17 0.21 47.8 1.000 132 0.50 997.9 0.0 1046 F 978.4 F R 0.09 0.21 38.4 1.000 322 0.50 0.6 0.0 39.0 D Northbound LTR 1.07 0.67 20.2 1.000 983 0.50 49.1 0.0 69.3 E 69.3 E Southbound LTR 1.03 0.67 20.2 1.000 808 0.50 40.2 0.0 60.5 E 60.5 E _____________________________________________ __________________________________
Intersection Delay = 552.9 (sec/veh) Intersection LOS = F ______________________SUPPLEMENTAL PERMITTED LT WORKSHEET______________________ for exclusive lefts Input EB WB NB SB
Opposed by Single(S) or Multiple(M) lane approach Cycle length, C 121.0 sec Total actual green time for LT lane group, G (s)
Effective permitted green time for LT lane group, g(s)
Opposing effective green time, go (s) Number of lanes in LT lane group, N Number of lanes in opposing approach, No Adjusted LT flow rate, VLT (veh/h) Proportion of LT in LT lane group, PLT Proportion of LT in opposing flow, PLTo Adjusted opposing flow rate, Vo (veh/h) Lost time for LT lane group, tL Computation LT volume per cycle, LTC=VLTC/3600 Opposing lane util. factor, fLUo
1.000 1.000 1.000 1.000
Opposing flow, Volc=VoC/[3600(No)fLUo] (veh/ln/cyc)
gf=G[exp(- a * (LTC ** b))]-tl, gf<=g Opposing platoon ratio, Rpo (refer Exhibit
16-11)
Opposing Queue Ratio, qro=Max[1-Rpo(go/C),0] gq, (see Exhibit C16-4,5,6,7,8) gu=g-gq if gq>=gf, or = g-gf if gq<gf n=Max(gq-gf)/2,0) PTHo=1-PLTo PL*=PLT[1+(N-1)g/(gf+gu/EL1+4.24)] EL1 (refer to Exhibit C16-3) EL2=Max((1-Ptho**n)/Plto, 1.0) fmin=2(1+PL)/g or fmin=2(1+Pl)/g gdiff=max(gq-gf,0) fm=[gf/g]+[gu/g]/[1+PL(EL1-1)], (min=fmin;max=1.00) flt=fm=[gf/g]+[gu/g]/[1+PL(EL1-1)]+[gdiff/g]/[1+PL(EL2-1)],(fmin<=fm<=1.00) or flt=[fm+0.91(N-1)]/N** Left-turn adjustment, fLT For special case of single-lane approach
opposed by multilane approach,
see text. * If Pl>=1 for shared left-turn lanes with
N>1, then assume de-facto
left-turn lane and redo calculations. ** For permitted left-turns with multiple
exclusive left-turn lanes, flt=fm. For special case of multilane approach opposed by single-lane approach
or when gf>gq, see text.
______________________SUPPLEMENTAL PERMITTED LT WORKSHEET______________________ for shared lefts Input EB WB NB SB
Opposed by Single(S) or Multiple(M) lane approach M M S S Cycle length, C 121.0 sec Total actual green time for LT lane group, G (s) 25.0 25.0 80.0 80.0
Effective permitted green time for LT lane group, g(s) 25.5 25.5 80.5 80.5
Opposing effective green time, go (s) 25.5 25.5 80.5 80.5
Number of lanes in LT lane group, N 1 1 1 1
Number of lanes in opposing approach, No 1 1 1 1
Adjusted LT flow rate, VLT (veh/h) 120 204 92 129
Proportion of LT in LT lane group, PLT 0.382 0.487 0.088 0.155
Proportion of LT in opposing flow, PLTo 0.49 0.38 0.15 0.09
Adjusted opposing flow rate, Vo (veh/h) 419 314 834 1051
Lost time for LT lane group, tL 7.50 7.50 7.50 7.50
Computation LT volume per cycle, LTC=VLTC/3600 4.03 6.86 3.09 4.34
Opposing lane util. factor, fLUo 1.000 1.000 1.000 1.000
Opposing flow, Volc=VoC/[3600(No)fLUo] (veh/ln/cyc) 14.08 10.55 28.03 35.33
gf=G[exp(- a * (LTC ** b))]-tl, gf<=g 0.0 0.0 6.4 1.7
Opposing platoon ratio, Rpo (refer Exhibit 16-11) 1.00 1.00 1.00 1.00
Opposing Queue Ratio, qro=Max[1-Rpo(go/C),0] 0.79 0.79 0.33 0.33 gq, (see Exhibit C16-4,5,6,7,8) 21.48 12.68 12.12 15.90 gu=g-gq if gq>=gf, or = g-gf if gq<gf 4.02 12.82 68.38 64.60 n=Max(gq-gf)/2,0) 10.74 6.34 2.86 7.11 PTHo=1-PLTo 0.51 0.62 0.85 0.91 PL*=PLT[1+(N-1)g/(gf+gu/EL1+4.24)] 0.38 0.49 0.09 0.15
EL1 (refer to Exhibit C16-3) 2.12 1.91 3.18 3.92 EL2=Max((1-Ptho**n)/Plto, 1.0) 2.05 2.49 2.46 5.47 fmin=2(1+PL)/g or fmin=2(1+Pl)/g 0.11 0.12 0.03 0.03 gdiff=max(gq-gf,0) 21.48 12.68 5.71 14.21 fm=[gf/g]+[gu/g]/[1+PL(EL1-1)], (min=fmin;max=1.00) 0.11 0.35 0.86 0.68 flt=fm=[gf/g]+[gu/g]/[1+PL(EL1-1)]+[gdiff/g]/[1+PL(EL2-1)],(fmin<=fm<=1.00) or flt=[fm+0.91(N-1)]/N** Left-turn adjustment, fLT 0.110 0.349 0.856 0.678 For special case of single-lane approach
opposed by multilane approach,
see text. * If Pl>=1 for shared left-turn lanes with
N>1, then assume de-facto
left-turn lane and redo calculations. ** For permitted left-turns with multiple
exclusive left-turn lanes, flt=fm. For special case of multilane approach opposed by single-lane approach
or when gf>gq, see text. _______________SUPPLEMENTAL
PEDESTRIAN-BICYCLE EFFECTS WORKSHEET_______________
Permitted Left Turns EB WB NB SB
Effective pedestrian green time, gp (s) Conflicting pedestrian volume, Vped (p/h) Pedestrian flow rate, Vpedg (p/h) OCCpedg Opposing queue clearing green, gq (s) Eff. ped. green consumed by opp. veh. queue,
OCCpedu Opposing flow rate, Vo (veh/h) OCCr Number of cross-street receiving lanes, Nrec Number of turning lanes, Nturn ApbT Proportion of left turns, PLT Proportion of left turns using protected
phase, PLTA
Left-turn adjustment, fLpb Permitted Right Turns Effective pedestrian green time, gp (s) Conflicting pedestrian volume, Vped (p/h) Conflicting bicycle volume, Vbic (bicycles/h) Vpedg OCCpedg Effective green, g (s) Vbicg OCCbicg OCCr Number of cross-street receiving lanes, Nrec Number of turning lanes, Nturn ApbT Proportion right-turns, PRT Proportion right-turns using protected phase,
PRTA
Right turn adjustment, fRpb _____________________SUPPLEMENTAL UNIFORM DELAY WORKSHEET______________________ EBLT WBLT NBLT SBLT Cycle length, C 121.0 sec
Adj. LT vol from Vol Adjustment Worksheet, v v/c ratio from Capacity Worksheet, X Protected phase effective green interval, g
(s)
Opposing queue effective green interval, gq Unopposed green interval, gu Red time r=(C-g-gq-gu) Arrival rate, qa=v/(3600(max[X,1.0])) Protected ph. departure rate, Sp=s/3600 Permitted ph. departure rate,
Ss=s(gq+gu)/(gu*3600)
XPerm XProt Case Queue at beginning of green arrow, Qa Queue at beginning of unsaturated green, Qu Residual queue, Qr Uniform Delay, d1 _________________DELAY/LOS WORKSHEET WITH
INITIAL QUEUE________________________
Initial Dur. Uniform Delay
Initial Final Initial Lane
Appr/ Unmet Unmet _______________ Queue Unmet Queue Group
Lane Demand Demand Unadj. Adj. Param. Demand Delay Delay
Group Q veh t hrs. ds d1 sec u Q veh d3 sec d sec
_____________________________________________ __________________________________ Eastbound 0.0 0.0 LT 0.0 0.00 47.8 47.8 0.00 68.0 0.0 3011 R 0.0 0.00 47.8 39.9 0.00 0.0 0.0 42.0 Westbound 0.0 0.0 LT 0.0 0.00 47.8 47.8 0.00 71.8 0.0 1046 R 0.0 0.00 47.8 38.4 0.00 0.0 0.0 39.0 Northbound 0.0 0.0 LTR 0.0 0.00 20.2 20.2 0.00 17.0 0.0 69.3 0.0 0.0 Southbound 0.0 0.0 LTR 0.0 0.00 20.2 20.2 0.00 6.5 0.0 60.5 0.0 0.0 _____________________________________________ __________________________________
Intersection Delay 552.9 sec/veh Intersection LOS F ___________________________BACK OF QUEUE WORKSHEET_____________________________ Eastbound Westbound Northbound Southbound LaneGroup | LT R | LT R | LTR | LTR | Init Queue | 0.0 0.0 | 0.0 0.0 | 0.0 | 0.0 | Flow Rate | 314 86 | 419 30 | 1051 | 834 | So | 1800 1800 | 1800 1800 | 1800 | 1800 | No.Lanes |0 1 1 |0 1 1 |0 1 0 |0 1 0 | SL | 199 1530 | 627 1530 | 1478 | 1214 | LnCapacity | 42 322 | 132 322 | 983 | 808 | Flow Ratio | 1.58 0.06 | 0.67 0.02 | 0.71 | 0.69 | v/c Ratio | 7.48 0.27 | 3.17 0.09 | 1.07 | 1.03 | Grn Ratio | 0.21 0.21 | 0.21 0.21 | 0.67 | 0.67 | I Factor | 1.000 | 1.000 | 1.000 | 1.000 | AT or PVG | 3 3 | 3 3 | 3 | 3 | Pltn Ratio | 1.00 1.00 | 1.00 1.00 | 1.00 | 1.00 | PF2 | 1.00 1.00 | 1.00 1.00 | 1.00 | 1.00 | Q1 | 10.6 2.4 | 14.1 0.8 | 35.3 | 28.0 | kB | 0.2 0.6 | 0.3 0.6 | 1.4 | 1.2 | Q2 | 34.2 0.2 | 36.4 0.1 | 18.4 | 13.0 | Q Average | 44.7 2.6 | 50.4 0.9 | 53.7 | 41.0 | Q Spacing | 7.6 7.6 | 7.6 7.6 | 7.6 | 7.6 | Q Storage | 0 0 | 0 0 | 0 | 0 | Q S Ratio | | | | | 70th Percentile Output: fB% | 1.2 1.3 | 1.2 1.3 | 1.2 | 1.2 | BOQ | 53.7 3.3 | 60.5 1.1 | 64.5 | 49.2 | QSRatio | | | | | 85th Percentile Output: fB% | 1.4 1.6 | 1.4 1.7 | 1.4 | 1.4 | BOQ | 62.6 4.2 | 70.6 1.4 | 75.2 | 57.4 | QSRatio | | | | | 90th Percentile Output: fB% | 1.5 1.8 | 1.5 1.9 | 1.5 | 1.5 | BOQ | 67.1 4.8 | 75.7 1.7 | 80.6 | 61.5 | QSRatio | | | | | 95th Percentile Output: fB% | 1.6 2.2 | 1.6 2.4 | 1.6 | 1.6 | BOQ | 71.6 5.8 | 80.7 2.1 | 86.0 | 65.6 | QSRatio | | | | | 98th Percentile Output: fB% | 1.7 2.6 | 1.7 3.0 | 1.7 | 1.7 | BOQ | 76.0 6.8 | 85.8 2.6 | 91.4 | 69.7 | QSRatio | | | | | _____________________________________________ __________________________________ ________________________________ERROR MESSAGES_________________________________
No errors to report.
HCS+: Signalized
Intersections Release 5.2
Analyst: Luisa Santomaso
Inter.: Via Fossa Ducaria Agency: Dip. Vie e Trasporti Area Type: All other areas
Date: 17/03/2009 Jurisd:
Period: Year: 2009
Project ID: Verifica E/W St: Via Fossa Ducaria N/S
St: Via Aurelia _________________________SIGNALIZED INTERSECTION SUMMARY_______________________ | Eastbound | Westbound | Northbound | Southbound | | L T R | L T R | L T R | L T R | |_______________|_______________|____________ ___|_______________| No. Lanes | 1 0 1 | 0 0 0 | 1 1 0 | 0 1 0 | LGConfig | L R | | L T | TR | Volume |115 143 | |81 849 | 992 36 | Lane Width |3.6 3.6 | |3.6 3.6 | 3.6 | RTOR Vol | 0 | | | 0 | _____________________________________________ __________________________________
Duration 0.25 Area Type: All other areas ______________________________Signal Operations________________________________ Phase Combination 1 2 3 4 | 5 6 7 8 EB Left P | NB Left P Thru | Thru P P Right P | Right Peds | Peds WB Left | SB Left Thru | Thru P Right | Right P Peds | Peds NB Right | EB Right SB Right | WB Right Green 25.0 0.0 25.0 80.0 0.0 Yellow 5.0 5.0 5.0 All Red 3.0 3.0 3.0 Cycle Length: 154.0 secs
____________________Intersection Performance Summary___________________________
Appr/ Lane Adj Sat Ratios Lane Group Approach
Lane Group Flow Rate __________ __________ ___________
Grp Capacity (s) v/c g/C Delay LOS Delay LOS
_____________________________________________ __________________________________ Eastbound L 283 1710 0.44 0.17 62.7 E 66.8 E R 253 1530 0.61 0.17 70.1 E Westbound Northbound L 283 1710 0.31 0.17 50.2 D T 1327 1800 0.69 0.74 3.3 A 7.3 A Southbound TR 936 1791 1.18 0.52 129.5 F 129.5 F Intersection Delay = 70.9 (sec/veh)
Intersection LOS = E _____________________________________________ __________________________________ HCS+: Signalized Intersections Release 5.2
Phone: Fax: E-Mail: ______________________________OPERATIONAL ANALYSIS_____________________________ Analyst: Luisa Santomaso Intersection: Via Fossa Ducaria Agency/Co.: Dip. Vie e
Trasporti
Area Type: All other areas Date Performed: 17/03/2009 Jurisdiction: Analysis Time Period: Analysis Year: 2009 Project ID: Verifica E/W St: Via Fossa Ducaria N/S
St: Via Aurelia ________________________________VOLUME DATA____________________________________ | Eastbound | Westbound | Northbound | Southbound | | L T R | L T R | L T R | L T R | |_______________|_______________|____________ ___|_______________| Volume |115 143 | |81 849 | 992 36 | % Heavy Veh|0 0 | |0 0 | 0 0 | PHF |0.93 0.93 | |0.93 0.93 | 0.93 0.93 | PK 15 Vol |31 38 | |22 228 | 267 10 | Hi Ln Vol | | | | | % Grade | 0 | | 0 | 0 | Ideal Sat |1800 1800 | |1800 1800 | 1800 | ParkExist | | | | | NumPark | | | | | No. Lanes | 1 0 1 | 0 0 0 | 1 1 0 | 0 1 0 | LGConfig | L R | | L T | TR | Lane Width |3.6 3.6 | |3.6 3.6 | 3.6 | RTOR Vol | 0 | | | 0 | Adj Flow |124 154 | |87 913 | 1106 | %InSharedLn| | | | | Prop LTs | | | 0.000 | 0.000 | Prop RTs | 1.000 | | 0.000 | 0.035 | Peds Bikes| 0 | 0 | | 0 | Buses |0 0 | |0 0 | 0 | %InProtPhase | | | |
Duration 0.25 Area Type: All other areas _____________________________OPERATING PARAMETERS______________________________ | Eastbound | Westbound | Northbound | Southbound | | L T R | L T R | L T R | L T R | |_______________|_______________|____________ ___|_______________| Init Unmet |0.0 0.0 | |0.0 0.0 | 0.0 | Arriv. Type|3 3 | |5 5 | 3 | Unit Ext. |3.0 3.0 | |3.0 3.0 | 3.0 | I Factor | 1.000 | | 0.407 | 1.000 | Lost Time |2.0 2.0 | |2.0 2.0 | 2.0 | Ext of g |2.5 2.5 | |2.5 2.5 | 2.5 | Ped Min g | 3.2 | 3.2 | | 3.2 | _________________________________PHASE DATA____________________________________ Phase Combination 1 2 3 4 | 5 6 7 8 EB Left P | NB Left P Thru | Thru P P Right P | Right Peds | Peds WB Left | SB Left Thru | Thru P Right | Right P Peds | Peds NB Right | EB Right | SB Right | WB Right | | Green 25.0 0.0 25.0 80.0 0.0 Yellow 5.0 5.0 5.0 All Red 3.0 3.0 3.0
Cycle Length: 154.0 secs
_________________VOLUME ADJUSTMENT AND
SATURATION FLOW WORKSHEET_______________
Volume Adjustment | Eastbound | Westbound | Northbound | Southbound | | L T R | L T R | L T R | L T R | |_______________|_______________|____________ ___|_______________| Volume, V |115 143 | |81 849 | 992 36 | PHF |0.93 0.93 | |0.93 0.93 | 0.93 0.93 | Adj flow |124 154 | |87 913 | 1067 39 | No. Lanes | 1 0 1 | 0 0 0 | 1 1 0 | 0 1 0 | Lane group | L R | | L T | TR | Adj flow |124 154 | |87 913 | 1106 | Prop LTs | | | 0.000 | 0.000 | Prop RTs | 1.000 | | 0.000 | 0.035 | Saturation Flow Rate (see Exhibit 16-7 to
determine the adjustment factors)____ Eastbound Westbound Northbound Southbound LG L R L T TR So 1800 1800 1800 1800 1800 Lanes 1 0 1 0 0 0 1 1 0 0 1 0 fW 1.000 1.000 1.000 1.000 1.000 fHV 1.000 1.000 1.000 1.000 1.000 fG 1.000 1.000 1.000 1.000 1.000 fP 1.000 1.000 1.000 1.000 1.000 fBB 1.000 1.000 1.000 1.000 1.000
fA 1.000 1.000 1.000 1.000 1.000 fLU 1.000 1.000 1.000 1.000 1.000 fRT 0.850 1.000 0.995 fLT 0.950 0.950 1.000 1.000 Sec. fLpb 1.000 1.000 1.000 1.000 fRpb 1.000 1.000 1.000 S 1710 1530 1710 1800 1791 Sec. _________________________CAPACITY AND LOS
WORKSHEET____________________________
Capacity Analysis and Lane Group Capacity Adj Adj Sat Flow
Green --Lane Group--
Appr/ Lane Flow Rate Flow Rate Ratio Ratio Capacity v/c Mvmt Group (v) (s) (v/s) (g/C) (c) Ratio _____________________________________________ __________________________________ Eastbound Prot Perm Left L 124 1710 0.07 0.17 283 0.44 Prot Perm Thru Right R 154 1530 # 0.10 0.17 253 0.61 Westbound Prot Perm Left Prot Perm Thru Right Northbound Prot Perm Left L 87 1710 # 0.05 0.17 283 0.31 Prot Perm Thru T 913 1800 0.51 0.74 1327 0.69 Right Southbound Prot Perm Left Prot Perm Thru TR 1106 1791 # 0.62 0.52 936 1.18 Right _____________________________________________ __________________________________
Sum of flow ratios for critical lane groups, Yc = Sum (v/s) = 0.77
Total lost time per cycle, L = 22.50 sec Critical flow rate to capacity ratio,
Xc = (Yc)(C)/(C-L) = 0.90
Control Delay and LOS
Determination________________________________ ____________
Appr/ Ratios Unf Prog Lane
Incremental Res Lane Group Approach Lane _________ Del Adj Grp Factor Del Del __________ ___________
Grp v/c g/C d1 Fact Cap k d2 d3 Delay LOS Delay LOS
_____________________________________________ __________________________________ Eastbound L 0.44 0.17 57.8 1.000 283 0.50 4.9 0.0 62.7 E 66.8 E R 0.61 0.17 59.6 1.000 253 0.50 10.4 0.0 70.1 E Westbound Northbound L 0.31 0.17 56.5 0.868 283 0.50 1.1 0.0 50.2 D T 0.69 0.74 10.8 0.190 1327 0.50 1.2 0.0 3.3 A 7.3 A Southbound TR 1.18 0.52 36.8 1.000 936 0.50 92.8 0.0 129.5 F 129.5 F _____________________________________________ __________________________________
Intersection Delay = 70.9 (sec/veh) Intersection LOS = E ______________________SUPPLEMENTAL PERMITTED LT WORKSHEET______________________ for exclusive lefts Input EB WB NB SB
Opposed by Single(S) or Multiple(M) lane approach Cycle length, C 154.0 sec Total actual green time for LT lane group, G (s)
Effective permitted green time for LT lane group, g(s)
Opposing effective green time, go (s) Number of lanes in LT lane group, N Number of lanes in opposing approach, No Adjusted LT flow rate, VLT (veh/h) Proportion of LT in LT lane group, PLT Proportion of LT in opposing flow, PLTo Adjusted opposing flow rate, Vo (veh/h) Lost time for LT lane group, tL Computation LT volume per cycle, LTC=VLTC/3600 Opposing lane util. factor, fLUo 1.000 1.000
Opposing flow, Volc=VoC/[3600(No)fLUo] (veh/ln/cyc)
gf=G[exp(- a * (LTC ** b))]-tl, gf<=g Opposing platoon ratio, Rpo (refer Exhibit
16-11)
Opposing Queue Ratio, qro=Max[1-Rpo(go/C),0] gq, (see Exhibit C16-4,5,6,7,8) gu=g-gq if gq>=gf, or = g-gf if gq<gf n=Max(gq-gf)/2,0) PTHo=1-PLTo PL*=PLT[1+(N-1)g/(gf+gu/EL1+4.24)] EL1 (refer to Exhibit C16-3) EL2=Max((1-Ptho**n)/Plto, 1.0) fmin=2(1+PL)/g or fmin=2(1+Pl)/g gdiff=max(gq-gf,0) fm=[gf/g]+[gu/g]/[1+PL(EL1-1)], (min=fmin;max=1.00) flt=fm=[gf/g]+[gu/g]/[1+PL(EL1-1)]+[gdiff/g]/[1+PL(EL2-1)],(fmin<=fm<=1.00) or flt=[fm+0.91(N-1)]/N** Left-turn adjustment, fLT For special case of single-lane approach
opposed by multilane approach,
see text. * If Pl>=1 for shared left-turn lanes with
N>1, then assume de-facto
left-turn lane and redo calculations. ** For permitted left-turns with multiple
exclusive left-turn lanes, flt=fm. For special case of multilane approach opposed by single-lane approach
or when gf>gq, see text. ______________________SUPPLEMENTAL PERMITTED LT WORKSHEET______________________ for shared lefts Input EB WB NB SB
Opposed by Single(S) or Multiple(M) lane approach Cycle length, C 154.0 sec Total actual green time for LT lane group, G (s)
Effective permitted green time for LT lane group, g(s)
Opposing effective green time, go (s) Number of lanes in LT lane group, N
Number of lanes in opposing approach, No Adjusted LT flow rate, VLT (veh/h) Proportion of LT in LT lane group, PLT
0.000 0.000
Proportion of LT in opposing flow, PLTo Adjusted opposing flow rate, Vo (veh/h) Lost time for LT lane group, tL Computation LT volume per cycle, LTC=VLTC/3600 Opposing lane util. factor, fLUo
1.000 1.000
Opposing flow, Volc=VoC/[3600(No)fLUo] (veh/ln/cyc)
gf=G[exp(- a * (LTC ** b))]-tl, gf<=g Opposing platoon ratio, Rpo (refer Exhibit
16-11)
Opposing Queue Ratio, qro=Max[1-Rpo(go/C),0] gq, (see Exhibit C16-4,5,6,7,8) gu=g-gq if gq>=gf, or = g-gf if gq<gf n=Max(gq-gf)/2,0) PTHo=1-PLTo PL*=PLT[1+(N-1)g/(gf+gu/EL1+4.24)] EL1 (refer to Exhibit C16-3) EL2=Max((1-Ptho**n)/Plto, 1.0) fmin=2(1+PL)/g or fmin=2(1+Pl)/g gdiff=max(gq-gf,0) fm=[gf/g]+[gu/g]/[1+PL(EL1-1)], (min=fmin;max=1.00) flt=fm=[gf/g]+[gu/g]/[1+PL(EL1-1)]+[gdiff/g]/[1+PL(EL2-1)],(fmin<=fm<=1.00) or flt=[fm+0.91(N-1)]/N** Left-turn adjustment, fLT For special case of single-lane approach
opposed by multilane approach,
see text. * If Pl>=1 for shared left-turn lanes with
N>1, then assume de-facto
left-turn lane and redo calculations. ** For permitted left-turns with multiple
exclusive left-turn lanes, flt=fm. For special case of multilane approach opposed by single-lane approach
or when gf>gq, see text. _______________SUPPLEMENTAL
PEDESTRIAN-BICYCLE EFFECTS WORKSHEET_______________
Permitted Left Turns
EB WB NB SB
Effective pedestrian green time, gp (s) Conflicting pedestrian volume, Vped (p/h) Pedestrian flow rate, Vpedg (p/h) OCCpedg Opposing queue clearing green, gq (s) Eff. ped. green consumed by opp. veh. queue,
gq/gp
OCCpedu Opposing flow rate, Vo (veh/h) OCCr Number of cross-street receiving lanes, Nrec Number of turning lanes, Nturn ApbT Proportion of left turns, PLT Proportion of left turns using protected
phase, PLTA
Left-turn adjustment, fLpb Permitted Right Turns Effective pedestrian green time, gp (s) Conflicting pedestrian volume, Vped (p/h) Conflicting bicycle volume, Vbic (bicycles/h) Vpedg OCCpedg Effective green, g (s) Vbicg OCCbicg OCCr Number of cross-street receiving lanes, Nrec Number of turning lanes, Nturn ApbT Proportion right-turns, PRT Proportion right-turns using protected phase,
PRTA
Right turn adjustment, fRpb _____________________SUPPLEMENTAL UNIFORM DELAY WORKSHEET______________________ EBLT WBLT NBLT SBLT Cycle length, C 154.0 sec
Adj. LT vol from Vol Adjustment Worksheet, v v/c ratio from Capacity Worksheet, X
Protected phase effective green interval, g (s)
Opposing queue effective green interval, gq Unopposed green interval, gu Red time r=(C-g-gq-gu) Arrival rate, qa=v/(3600(max[X,1.0])) Protected ph. departure rate, Sp=s/3600 Permitted ph. departure rate,
Ss=s(gq+gu)/(gu*3600)
XPerm XProt Case Queue at beginning of green arrow, Qa Queue at beginning of unsaturated green, Qu Residual queue, Qr Uniform Delay, d1 _________________DELAY/LOS WORKSHEET WITH
INITIAL QUEUE________________________
Initial Dur. Uniform Delay
Initial Final Initial Lane
Appr/ Unmet Unmet _______________ Queue Unmet Queue Group
Lane Demand Demand Unadj. Adj. Param. Demand Delay Delay
Group Q veh t hrs. ds d1 sec u Q veh d3 sec d sec
_____________________________________________ __________________________________ Eastbound L 0.0 0.00 64.3 57.8 0.00 0.0 0.0 62.7 0.0 0.0 R 0.0 0.00 64.3 59.6 0.00 0.0 0.0 70.1 Westbound 0.0 0.0 0.0 0.0 0.0 0.0 Northbound L 0.0 0.00 64.3 56.5 0.00 0.0 0.0 50.2 T 0.0 0.00 20.3 10.8 0.00 0.0 0.0 3.3 0.0 0.0 Southbound 0.0 0.0 TR 0.0 0.00 36.8 36.8 0.00 42.5 0.0 129.5 0.0 0.0 _____________________________________________ __________________________________
Intersection Delay 70.9 sec/veh Intersection LOS E ___________________________BACK OF QUEUE WORKSHEET_____________________________ Eastbound Westbound Northbound Southbound LaneGroup |L R | |L T | TR | Init Queue |0.0 0.0 | |0.0 0.0 | 0.0 | Flow Rate |124 154 | |87 913 | 1106 | So |1800 1800 | |1800 1800 | 1800 | No.Lanes |1 0 1 |0 0 0 |1 1 0 |0 1 0 | SL |1710 1530 | |1710 1800 | 1791 | LnCapacity |283 253 | |283 1327 | 936 | Flow Ratio |0.07 0.10 | |0.05 0.51 | 0.62 | v/c Ratio |0.44 0.61 | |0.31 0.69 | 1.18 | Grn Ratio |0.17 0.17 | |0.17 0.74 | 0.52 | I Factor | 1.000 | | 0.407 | 1.000 | AT or PVG |3 3 | |5 5 | 3 |
Pltn Ratio |1.00 1.00 | |1.67 1.29 | 1.00 | PF2 |1.00 1.00 | |0.90 0.27 | 1.00 | Q1 |4.8 6.1 | |2.9 5.6 | 47.3 | kB |0.7 0.6 | |0.3 0.8 | 1.6 | Q2 |0.5 0.9 | |0.1 1.8 | 28.9 | Q Average |5.3 7.0 | |3.1 7.4 | 76.2 | Q Spacing |7.6 7.6 | |7.6 7.6 | 7.6 | Q Storage |0 0 | |0 0 | 0 | Q S Ratio | | | | | 70th Percentile Output: fB% |1.2 1.2 | |1.3 1.2 | 1.2 | BOQ |6.5 8.6 | |3.8 9.0 | 91.4 | QSRatio | | | | | 85th Percentile Output: fB% |1.5 1.5 | |1.6 1.5 | 1.4 | BOQ |8.0 10.4 | |4.8 10.9 | 107 | QSRatio | | | | | 90th Percentile Output: fB% |1.7 1.6 | |1.8 1.6 | 1.5 | BOQ |8.9 11.4 | |5.4 11.9 | 114 | QSRatio | | | | | 95th Percentile Output: fB% |1.9 1.8 | |2.1 1.8 | 1.6 | BOQ |10.3 13.0 | |6.6 13.5 | 122 | QSRatio | | | | | 98th Percentile Output: fB% |2.2 2.1 | |2.5 2.0 | 1.7 | BOQ |11.8 14.5 | |7.7 15.1 | 129 | QSRatio | | | | | _____________________________________________ __________________________________ ________________________________ERROR MESSAGES_________________________________ No errors to report. HCS+: Signalized Intersections Release 5.2 Analyst: Luisa Santomaso
Inter.: Lungarno Cosimo Primo dei Medi Agency: Area Type: All other areas
Date: 17/03/2009 Jurisd:
Period: Year: Project ID: Verifica E/W St: Lungarno Cosimo Primo dei Med N/S
St: Via Aurelia _________________________SIGNALIZED INTERSECTION SUMMARY_______________________ | Eastbound | Westbound | Northbound | Southbound | | L T R | L T R | L T R | L T R | |_______________|_______________|____________ ___|_______________| No. Lanes | 0 0 0 | 1 0 1 | 0 1 0 | 1 1 0 | LGConfig | | L R | TR | L T | Volume | |124 224 | 778 182 |244 762 | Lane Width | |3.6 3.6 | 3.6 |3.6 3.6 | RTOR Vol | | 0 | 0 | |
_____________________________________________ __________________________________
Duration 0.25 Area Type: All other areas ______________________________Signal Operations________________________________ Phase Combination 1 2 3 4 | 5 6 7 8 EB Left | NB Left Thru | Thru P Right | Right P Peds | Peds WB Left P | SB Left P Thru | Thru P P Right P | Right Peds | Peds NB Right | EB Right SB Right | WB Right P Green 25.0 80.0 25.0 Yellow 5.0 5.0 5.0 All Red 3.0 3.0 3.0 Cycle Length: 154.0 secs
____________________Intersection Performance Summary___________________________
Appr/ Lane Adj Sat Ratios Lane Group Approach
Lane Group Flow Rate __________ __________ ___________
Grp Capacity (s) v/c g/C Delay LOS Delay LOS
_____________________________________________ __________________________________ Eastbound Westbound L 283 1710 0.47 0.17 63.6 E 46.7 D R 581 1530 0.41 0.38 37.3 D Northbound TR 917 1754 1.13 0.52 107.7 F 107.7 F Southbound L 283 1710 0.93 0.17 75.1 E T 1327 1800 0.62 0.74 2.7 A 20.3 C Intersection Delay = 60.5 (sec/veh)
Intersection LOS = E _____________________________________________ __________________________________ HCS+: Signalized Intersections Release 5.2 Phone: Fax: E-Mail: ______________________________OPERATIONAL ANALYSIS_____________________________ Analyst: Luisa Santomaso Intersection: Lungarno Cosimo
Primo dei Medi
Agency/Co.: Area Type: All other areas Date Performed: 17/03/2009 Jurisdiction:
Analysis Time Period: Analysis Year: Project ID: Verifica E/W St: Lungarno Cosimo Primo dei Med N/S
St: Via Aurelia ________________________________VOLUME DATA____________________________________ | Eastbound | Westbound | Northbound | Southbound | | L T R | L T R | L T R | L T R | |_______________|_______________|____________ ___|_______________| Volume | |124 224 | 778 182 |244 762 | % Heavy Veh| |0 0 | 0 0 |0 0 | PHF | |0.93 0.93 | 0.93 0.93 |0.93 0.93 | PK 15 Vol | |33 60 | 209 49 |66 205 | Hi Ln Vol | | | | | % Grade | | 0 | 0 | 0 | Ideal Sat | |1800 1800 | 1800 |1800 1800 | ParkExist | | | | | NumPark | | | | | No. Lanes | 0 0 0 | 1 0 1 | 0 1 0 | 1 1 0 | LGConfig | | L R | TR | L T | Lane Width | |3.6 3.6 | 3.6 |3.6 3.6 | RTOR Vol | | 0 | 0 | | Adj Flow | |133 241 | 1033 |262 819 | %InSharedLn| | | | | Prop LTs | | | 0.000 | 0.000 | Prop RTs | | 1.000 | 0.190 | 0.000 | Peds Bikes| 0 | 0 | 0 | | Buses | |0 0 | 0 |0 0 | %InProtPhase | | | |
Duration 0.25 Area Type: All other areas _____________________________OPERATING PARAMETERS______________________________ | Eastbound | Westbound | Northbound | Southbound | | L T R | L T R | L T R | L T R | |_______________|_______________|____________ ___|_______________| Init Unmet | |0.0 0.0 | 0.0 |0.0 0.0 | Arriv. Type| |3 3 | 3 |5 5 | Unit Ext. | |3.0 3.0 | 3.0 |3.0 3.0 | I Factor | | 1.000 | 1.000 | 0.407 | Lost Time | |2.0 2.0 | 2.0 |2.0 2.0 | Ext of g | |2.5 2.5 | 2.5 |2.5 2.5 | Ped Min g | 3.2 | 3.2 | 3.2 | | _________________________________PHASE DATA____________________________________ Phase Combination 1 2 3 4 | 5 6 7 8 EB Left | NB Left Thru | Thru P
Right | Right P Peds | Peds WB Left P | SB Left P Thru | Thru P P Right P | Right Peds | Peds NB Right | EB Right | SB Right | WB Right P | | Green 25.0 80.0 25.0 Yellow 5.0 5.0 5.0 All Red 3.0 3.0 3.0
Cycle Length: 154.0 secs
_________________VOLUME ADJUSTMENT AND
SATURATION FLOW WORKSHEET_______________
Volume Adjustment | Eastbound | Westbound | Northbound | Southbound | | L T R | L T R | L T R | L T R | |_______________|_______________|____________ ___|_______________| Volume, V | |124 224 | 778 182 |244 762 | PHF | |0.93 0.93 | 0.93 0.93 |0.93 0.93 | Adj flow | |133 241 | 837 196 |262 819 | No. Lanes | 0 0 0 | 1 0 1 | 0 1 0 | 1 1 0 | Lane group | | L R | TR | L T | Adj flow | |133 241 | 1033 |262 819 | Prop LTs | | | 0.000 | 0.000 | Prop RTs | | 1.000 | 0.190 | 0.000 | Saturation Flow Rate (see Exhibit 16-7 to
determine the adjustment factors)____ Eastbound Westbound Northbound Southbound LG L R TR L T So 1800 1800 1800 1800 1800 Lanes 0 0 0 1 0 1 0 1 0 1 1 0 fW 1.000 1.000 1.000 1.000 1.000 fHV 1.000 1.000 1.000 1.000 1.000 fG 1.000 1.000 1.000 1.000 1.000 fP 1.000 1.000 1.000 1.000 1.000 fBB 1.000 1.000 1.000 1.000 1.000 fA 1.000 1.000 1.000 1.000 1.000 fLU 1.000 1.000 1.000 1.000 1.000 fRT 0.850 0.974 1.000 fLT 0.950 1.000 0.950 1.000 Sec. fLpb 1.000 1.000 1.000 1.000 fRpb 1.000 1.000 1.000 S 1710 1530 1754 1710 1800 Sec.
_________________________CAPACITY AND LOS WORKSHEET____________________________
Capacity Analysis and Lane Group Capacity Adj Adj Sat Flow
Green --Lane Group--
Appr/ Lane Flow Rate Flow Rate Ratio Ratio Capacity v/c Mvmt Group (v) (s) (v/s) (g/C) (c) Ratio _____________________________________________ __________________________________ Eastbound Prot Perm Left Prot Perm Thru Right Westbound Prot Perm Left L 133 1710 # 0.08 0.17 283 0.47 Prot Perm Thru Right R 241 1530 0.16 0.38 581 0.41 Northbound Prot Perm Left Prot Perm Thru TR 1033 1754 # 0.59 0.52 917 1.13 Right Southbound Prot Perm Left L 262 1710 # 0.15 0.17 283 0.93 Prot Perm Thru T 819 1800 0.46 0.74 1327 0.62 Right _____________________________________________ __________________________________
Sum of flow ratios for critical lane groups, Yc = Sum (v/s) = 0.82
Total lost time per cycle, L = 22.50 sec Critical flow rate to capacity ratio,
Xc = (Yc)(C)/(C-L) = 0.96
Control Delay and LOS
Determination________________________________ ____________
Appr/ Ratios Unf Prog Lane
Incremental Res Lane Group Approach Lane _________ Del Adj Grp Factor Del Del __________ ___________
Grp v/c g/C d1 Fact Cap k d2 d3 Delay LOS Delay LOS
_____________________________________________ __________________________________ Eastbound Westbound L 0.47 0.17 58.1 1.000 283 0.50 5.5 0.0 63.6 E 46.7 D R 0.41 0.38 35.1 1.000 581 0.50 2.2 0.0 37.3 D Northbound TR 1.13 0.52 36.8 1.000 917 0.50 70.9 0.0 107.7 F 107.7 F Southbound L 0.93 0.17 63.3 0.868 283 0.50 20.1 0.0 75.1 E T 0.62 0.74 9.8 0.190 1327 0.50 0.9 0.0 2.7 A 20.3 C _____________________________________________ __________________________________
Intersection Delay = 60.5 (sec/veh) Intersection LOS = E
______________________SUPPLEMENTAL PERMITTED LT WORKSHEET______________________ for exclusive lefts Input EB WB NB SB
Opposed by Single(S) or Multiple(M) lane approach Cycle length, C 154.0 sec Total actual green time for LT lane group, G (s)
Effective permitted green time for LT lane group, g(s)
Opposing effective green time, go (s) Number of lanes in LT lane group, N Number of lanes in opposing approach, No Adjusted LT flow rate, VLT (veh/h) Proportion of LT in LT lane group, PLT Proportion of LT in opposing flow, PLTo Adjusted opposing flow rate, Vo (veh/h) Lost time for LT lane group, tL Computation LT volume per cycle, LTC=VLTC/3600 Opposing lane util. factor, fLUo
1.000 1.000
Opposing flow, Volc=VoC/[3600(No)fLUo] (veh/ln/cyc)
gf=G[exp(- a * (LTC ** b))]-tl, gf<=g Opposing platoon ratio, Rpo (refer Exhibit
16-11)
Opposing Queue Ratio, qro=Max[1-Rpo(go/C),0] gq, (see Exhibit C16-4,5,6,7,8) gu=g-gq if gq>=gf, or = g-gf if gq<gf n=Max(gq-gf)/2,0) PTHo=1-PLTo PL*=PLT[1+(N-1)g/(gf+gu/EL1+4.24)] EL1 (refer to Exhibit C16-3) EL2=Max((1-Ptho**n)/Plto, 1.0) fmin=2(1+PL)/g or fmin=2(1+Pl)/g gdiff=max(gq-gf,0) fm=[gf/g]+[gu/g]/[1+PL(EL1-1)], (min=fmin;max=1.00) flt=fm=[gf/g]+[gu/g]/[1+PL(EL1-1)]+[gdiff/g]/[1+PL(EL2-1)],(fmin<=fm<=1.00) or flt=[fm+0.91(N-1)]/N** Left-turn adjustment, fLT For special case of single-lane approach
opposed by multilane approach,
see text. * If Pl>=1 for shared left-turn lanes with
N>1, then assume de-facto
left-turn lane and redo calculations. ** For permitted left-turns with multiple
exclusive left-turn lanes, flt=fm. For special case of multilane approach opposed by single-lane approach
or when gf>gq, see text. ______________________SUPPLEMENTAL PERMITTED LT WORKSHEET______________________ for shared lefts Input EB WB NB SB
Opposed by Single(S) or Multiple(M) lane approach Cycle length, C 154.0 sec Total actual green time for LT lane group, G (s)
Effective permitted green time for LT lane group, g(s)
Opposing effective green time, go (s) Number of lanes in LT lane group, N Number of lanes in opposing approach, No Adjusted LT flow rate, VLT (veh/h) Proportion of LT in LT lane group, PLT
0.000 0.000
Proportion of LT in opposing flow, PLTo Adjusted opposing flow rate, Vo (veh/h) Lost time for LT lane group, tL Computation LT volume per cycle, LTC=VLTC/3600 Opposing lane util. factor, fLUo
1.000 1.000
Opposing flow, Volc=VoC/[3600(No)fLUo] (veh/ln/cyc)
gf=G[exp(- a * (LTC ** b))]-tl, gf<=g Opposing platoon ratio, Rpo (refer Exhibit
16-11)
Opposing Queue Ratio, qro=Max[1-Rpo(go/C),0] gq, (see Exhibit C16-4,5,6,7,8) gu=g-gq if gq>=gf, or = g-gf if gq<gf n=Max(gq-gf)/2,0) PTHo=1-PLTo PL*=PLT[1+(N-1)g/(gf+gu/EL1+4.24)] EL1 (refer to Exhibit C16-3) EL2=Max((1-Ptho**n)/Plto, 1.0) fmin=2(1+PL)/g or fmin=2(1+Pl)/g gdiff=max(gq-gf,0) fm=[gf/g]+[gu/g]/[1+PL(EL1-1)], (min=fmin;max=1.00) flt=fm=[gf/g]+[gu/g]/[1+PL(EL1-1)]+[gdiff/g]/[1+PL(EL2-1)],(fmin<=fm<=1.00) or flt=[fm+0.91(N-1)]/N** Left-turn adjustment, fLT For special case of single-lane approach
opposed by multilane approach,
see text. * If Pl>=1 for shared left-turn lanes with
N>1, then assume de-facto
left-turn lane and redo calculations. ** For permitted left-turns with multiple
exclusive left-turn lanes, flt=fm. For special case of multilane approach opposed by single-lane approach
or when gf>gq, see text. _______________SUPPLEMENTAL
PEDESTRIAN-BICYCLE EFFECTS WORKSHEET_______________
Permitted Left Turns EB WB NB SB
Effective pedestrian green time, gp (s) Conflicting pedestrian volume, Vped (p/h) Pedestrian flow rate, Vpedg (p/h) OCCpedg Opposing queue clearing green, gq (s) Eff. ped. green consumed by opp. veh. queue,
gq/gp
OCCpedu Opposing flow rate, Vo (veh/h) OCCr Number of cross-street receiving lanes, Nrec Number of turning lanes, Nturn ApbT Proportion of left turns, PLT Proportion of left turns using protected
phase, PLTA
Left-turn adjustment, fLpb Permitted Right Turns Effective pedestrian green time, gp (s) Conflicting pedestrian volume, Vped (p/h) Conflicting bicycle volume, Vbic (bicycles/h) Vpedg OCCpedg Effective green, g (s) Vbicg OCCbicg OCCr Number of cross-street receiving lanes, Nrec Number of turning lanes, Nturn ApbT Proportion right-turns, PRT Proportion right-turns using protected phase,
PRTA
Right turn adjustment, fRpb _____________________SUPPLEMENTAL UNIFORM DELAY WORKSHEET______________________ EBLT WBLT NBLT SBLT Cycle length, C 154.0 sec
Adj. LT vol from Vol Adjustment Worksheet, v v/c ratio from Capacity Worksheet, X Protected phase effective green interval, g
(s)
Opposing queue effective green interval, gq Unopposed green interval, gu Red time r=(C-g-gq-gu) Arrival rate, qa=v/(3600(max[X,1.0])) Protected ph. departure rate, Sp=s/3600 Permitted ph. departure rate,
Ss=s(gq+gu)/(gu*3600)
XPerm XProt Case Queue at beginning of green arrow, Qa Queue at beginning of unsaturated green, Qu Residual queue, Qr Uniform Delay, d1
_________________DELAY/LOS WORKSHEET WITH INITIAL QUEUE________________________
Initial Dur. Uniform Delay
Initial Final Initial Lane
Appr/ Unmet Unmet _______________ Queue Unmet Queue Group
Lane Demand Demand Unadj. Adj. Param. Demand Delay Delay
Group Q veh t hrs. ds d1 sec u Q veh d3 sec d sec
_____________________________________________ __________________________________ Eastbound 0.0 0.0 0.0 0.0 0.0 0.0 Westbound L 0.0 0.00 64.3 58.1 0.00 0.0 0.0 63.6 0.0 0.0 R 0.0 0.00 47.8 35.1 0.00 0.0 0.0 37.3 Northbound 0.0 0.0 TR 0.0 0.00 36.8 36.8 0.00 29.0 0.0 107.7 0.0 0.0 Southbound L 0.0 0.00 64.3 63.3 0.00 0.0 0.0 75.1 T 0.0 0.00 20.3 9.8 0.00 0.0 0.0 2.7 0.0 0.0 _____________________________________________ __________________________________
Intersection Delay 60.5 sec/veh Intersection LOS E ___________________________BACK OF QUEUE WORKSHEET_____________________________ Eastbound Westbound Northbound Southbound LaneGroup | |L R | TR |L T | Init Queue | |0.0 0.0 | 0.0 |0.0 0.0 | Flow Rate | |133 241 | 1033 |262 819 | So | |1800 1800 | 1800 |1800 1800 | No.Lanes |0 0 0 |1 0 1 |0 1 0 |1 1 0 | SL | |1710 1530 | 1754 |1710 1800 | LnCapacity | |283 581 | 917 |283 1327 | Flow Ratio | |0.08 0.16 | 0.59 |0.15 0.46 | v/c Ratio | |0.47 0.41 | 1.13 |0.93 0.62 | Grn Ratio | |0.17 0.38 | 0.52 |0.17 0.74 | I Factor | | 1.000 | 1.000 | 0.407 | AT or PVG | |3 3 | 3 |5 5 | Pltn Ratio | |1.00 1.00 | 1.00 |1.67 1.29 | PF2 | |1.00 1.00 | 1.00 |0.99 0.25 | Q1 | |5.1 7.6 | 44.2 |10.9 4.2 | kB | |0.7 1.1 | 1.6 |0.3 0.8 | Q2 | |0.6 0.8 | 23.2 |2.0 1.3 | Q Average | |5.7 8.4 | 67.4 |12.9 5.5 | Q Spacing | |7.6 7.6 | 7.6 |7.6 7.6 | Q Storage | |0 0 | 0 |0 0 | Q S Ratio | | | | | 70th Percentile Output: fB% | |1.2 1.2 | 1.2 |1.2 1.2 | BOQ | |7.1 10.2 | 80.9 |15.6 6.8 | QSRatio | | | | | 85th Percentile Output: fB% | |1.5 1.5 | 1.4 |1.4 1.5 | BOQ | |8.6 12.2 | 94.4 |18.3 8.3 | QSRatio | | | | | 90th Percentile Output: fB% | |1.7 1.6 | 1.5 |1.5 1.7 | BOQ | |9.5 13.4 | 101 |19.8 9.2 | QSRatio | | | | | 95th Percentile Output: fB% | |1.9 1.8 | 1.6 |1.7 1.9 | BOQ | |11.0 15.0 | 108 |21.6 10.7 | QSRatio | | | | | 98th Percentile Output: fB% | |2.2 2.0 | 1.7 |1.8 2.2 | BOQ | |12.5 16.6 | 115 |23.4 12.2 | QSRatio | | | | | _____________________________________________ __________________________________ ________________________________ERROR MESSAGES_________________________________ No errors to report.
HCS+: Signalized
Intersections Release 5.2
Analyst: Luisa Santomaso
Inter.: Viale delle Cascine Agency: Dip. Vie e Trasporti Area Type: All other areas
Date: 17/04/2009 Jurisd:
Period: Year: 2009
Project ID: Progetto E/W St: Viale delle Cascine N/S
St: Via Aurelia _________________________SIGNALIZED INTERSECTION SUMMARY_______________________ | Eastbound | Westbound | Northbound | Southbound | | L T R | L T R | L T R | L T R | |_______________|_______________|____________ ___|_______________| No. Lanes | 0 1 1 | 0 1 1 | 0 1 2 | 0 1 2 | LGConfig | T R | T R | T R | T R | Volume | 390 28 | 292 80 | 598 380 | 624 152 | Lane Width | 3.7 3.7 | 3.7 3.7 | 3.7 3.7 | 3.7 3.7 | RTOR Vol | 0 | 0 | 0 | 0 | _____________________________________________ __________________________________
Duration 0.25 Area Type: All other areas ______________________________Signal Operations________________________________ Phase Combination 1 2 3 4 | 5 6 7 8 EB Left | NB Left Thru P P | Thru P Right P | Right P Peds | Peds WB Left | SB Left Thru P P | Thru P Right P | Right P Peds | Peds NB Right | EB Right SB Right | WB Right Green 13.0 13.0 32.0 Yellow 0.0 5.0 5.0 All Red 0.0 0.0 0.0 Cycle Length: 68.0 secs
____________________Intersection Performance Summary___________________________
Appr/ Lane Adj Sat Ratios Lane Group Approach
Lane Group Flow Rate __________ __________ ___________
Grp Capacity (s) v/c g/C Delay LOS Delay LOS
_____________________________________________ __________________________________ Eastbound T 709 1820 0.59 0.39 20.1 C 20.2 C R 307 1547 0.10 0.20 22.9 C Westbound T 709 1820 0.44 0.39 17.3 B 19.0 B R 307 1547 0.28 0.20 25.4 C Northbound T 870 1820 0.74 0.48 19.9 B 16.7 B R 1309 2738 0.31 0.48 11.5 B Southbound T 870 1820 0.77 0.48 21.2 C 19.0 B R 1309 2738 0.12 0.48 10.0+ B
Intersection Delay = 18.3 (sec/veh) Intersection LOS = B _____________________________________________ __________________________________ HCS+: Signalized Intersections Release 5.2 Phone: Fax: E-Mail: ______________________________OPERATIONAL ANALYSIS_____________________________ Analyst: Luisa Santomaso Intersection: Viale delle Cascine Agency/Co.: Dip. Vie e
Trasporti
Area Type: All other areas Date Performed: 17/04/2009 Jurisdiction: Analysis Time Period: Analysis Year: 2009 Project ID: Progetto E/W St: Viale delle Cascine N/S
St: Via Aurelia ________________________________VOLUME DATA____________________________________ | Eastbound | Westbound | Northbound | Southbound | | L T R | L T R | L T R | L T R |
