techncial appendix ta-1.3 single lane roundabout ......h. ressel, r4 chief project design engineer...

DRAFT DESIGN REPORTAugust 2011

TECHNCIAL APPENDIXTA-1.3

SINGLE LANE ROUNDABOUTJUSTIFICATION - EAST RIVER ROAD

AND KENDRICK ROAD

Access 390I-390 Exit 16

Interchange Reconstruction Project

P.I.N. 4390.17Monroe County

Town of BrightonCity of Rochester

MEMORANDUMDepartment of Transportation

TO: File, Design 4390.17

FROM: Dan Schwind, Co-Project Design Engineer, Region 4

SUBJECT: Design Justification SummaryPIN 4390.17Access 390: I390 / 15A / 15 / Kendrick Interchange Improvements ProjectCity of Rochester, Town of Brighton, MONROE COUNTY, Region 4

PROPOSED KENDRICK / E. RIVER RD / MURLIN DR INTERSECTIONPREFERRED “ALTERNATIVE E2”in Stage 1

DATE: May 10, 2011

A “final” Preliminary Engineering Stage mini-study was conducted recently in March/April2011, to ensure the proper modern roundabout is being designed.

Preliminarily, Bergmann’s VISSIM Level of Service (LOS) results indicated to us that a two-lane roundabout was necessary capacity-wise at the Kendrick/ERiv/Murlin intersection. This wasnecessary mainly for the PM’s heavy SB-to-EB move. Because two-lane roundabouts are inherently“less safe” than single-lane roundabouts, and since the circulating volumes for ETC+20 (yr 2033)were in the “gray” area range for considering two-lane roundabouts (1100 – 1400 vph), a closer lookwas taken at this roundabout intersection. Also, NYSDOT had Bergmann further analyze thisintersection as a signalized Alternative (in SYNCHRO), just to see the results.

The following is a Table summarizing the various LOS results:

Design Justification MemoPage 2Date: 5/10/11

Footnotes: The order of the LOS figures above are the following moves….EB,WB,NB,SB.* NYSDOT Main Office’s H. McCulloch (Design Rd’bt Unit) performed the capacity analyses.

+ with metering signals, we can improve these figures to “B,A,C,B”.** Bergmann Associates performed the capacity analyses.

As can be seen, this Table shows that capacity-wise, any of the three alternatives will operateproperly, except possibly for the NB move in 2033. The more important question is which alternativewill operate with the best SAFETY, and that is usually measured by the least amount of crashes andwith low severity rates.

NYSDOT Main Office’s Howard McCulloch of their Design Roundabout Unit re-configured theoriginal Bergmann two-lane roundabout design to a single-lane roundabout design, utilizing theexclusive RTO lane for the WB to NB moves (heavy in the AM) and a separate right lane turn (yield)for the SB to WB moves. Using VISSIM and SIDRA, Howard produced acceptable capacity figuresfor the Single-Lane Roundabout, but with the possible need of ramp-type metering signals in theETC+15 (Yr 2028) or so. These would be possibly needed at the SB and WB entries to theroundabout, so that the NB and EB entries improve in reduced delay. Please view the “avi”simulation files (Video Clips) entitled “Signals – same timer” and “Signals – staggered” in the P-drivefolder, “P\Toolbox\Documents & Resources\Roundabout Design Info\R-04\Rt. 390 Roundabout\2-25-

ALTERNATIVE at ProposedKendrick/E Riv/Murlin Intersection

VISSIM(LOS figures)

SIDRA(LOS figures)

SYNCHRO(LOS figures)

ALT “A”Single-Lane Modern Roundabout *

- 150’ outer circle- 20’ circulating lane- Right Turn Only lane (RTO), WB to NB- Separate Right Lane (yield), SB to WB

2013

[AM]A,A,A,A

[PM]A,A,B,A

2033

[AM]A,A,A,A

[PM] +C,A,E,A

2013

[AM]Not Done

[PM]B,A,B,B

2033

[AM]Not Done

[PM]C,A,C,B

NotDone

ALT “A”Two-Lane Modern Roundabout **- 160’+/- outer circle- Two separate circulating lanes (for

two-thirds of roundabout)- Right Turn Only lane (RTO), WB to NB

2013

[AM]A,A,A,A

[PM]A,A,C,A

2033

[AM]A,A,B,A

[PM]C,A,E,A

NotDone

NotDone

NotDone

ALT “B”Signalized 4-leg std. Intersection **

- All legs have Left Turn Lanes- Dual Left Turn Lanes on Kendrick SB

leg- Right Turn Only lane (RTO), WB to NB

NotDone

NotDone

NotDone

NotDone

2013

[AM]A,A,C,C

[PM]B,B,C,C

2033

[AM]A,A,C,C

[PM]B,B,C,C

Design Justification MemoPage 3Date: 5/10/11

11 data”. These simulations both show the operation of the single-lane roundabout with meteringsignals at the SB and WB legs. Howard’s thinking on the proposed signal timing would be in therange of 10 to 15 seconds of “red” every minute.

In conclusion, Howard and I recommend installing a regular constant-diameter single-lanemodern roundabout (not a retro type one; we did look at this sub-alternative, but rejected it). Itshould have the RTO lane for the WB to NB moves, and the separate right lane turn (yield) for theSB to WB moves. In the year 2028 or so, it may need metering signals on the SB and/or WBentering legs. Safety-wise, this single-lane roundabout will reduce crashes and crash severity, ascompared to the two-lane roundabout or the signalized intersection alternative. We knowroundabouts have many fewer conflict points (and, no left turn conflicts) than signalizedintersections, and overall (and at all times of the day) the reduced vehicular speeds enteringroundabouts make it a safer choice. When choosing between the single-lane and the two-laneoptions for the roundabout, it can be summed up this way: The two-lane roundabout would be,overall, more complex and dependent on pavement markings & signs. There is more decision-making on the part of the motorists. Therefore, inherently it would be less safe than a single-laneroundabout. This can be seen and read about in the Ch 6.5 section of “Multilane Roundabouts”,FHWA’s 2010 Roundabouts: An Informational Guide, 2nd Edition (NCHRP Report 672).

This single-lane roundabout will be 150’ outer diameter, with a 20’ wide circulating lane and a15’ wide truck apron. See the attached pdf drawing of the 5-2-11 version (latest) of the proposedroundabout. As of this writing, the entire “footprint” of this roundabout will be shifted slightlywestward a few feet, for right-of-way purposes. This roundabout will handle approximately 2.7%heavy trucks & buses. It will accommodate the Design Vehicles: a) WB-67 (Interstate SemitrailerTruck), and b) BUS-45 (Intercity Bus), and S-BUS-40 (Large School Bus), without utilizing the truckapron. It will have a carefully-designed pedestrian sidewalk and crosswalk system.

Other Attachments (all electronic email):- 2013 and 2033 Volume Sheets [4 – 11x17 sheets]- 2013 and 2033 VISSIM LOS Sheets (McCulloch) for single-lane rdbt [10 – 8.5x11 sheets]- 2013 and 2033 SIDRA Sheets [2 – 8.5x11 sheets]- 2013 and 2033 VISSIM LOS Sheet (Bergmann) for two-lane rdbt [1 – 8.5x11 sheet]- 2013 and 2033 SYNCHRO Sheets for Signal Alt [See 6 files, 439017 Signal…, 18 – 8.5x11 sheets]

Cc (all electronic email):H. McCulloch, Main Office Albany, Design - Roundabouts UnitH. Ressel, R4 Chief Project Design Engineer for 439017W. Alden, R4 Assistant Regional Design EngineerK. Bush, R4 Regional Design EngineerD. Terry, R4 Co-Designer on 439017R. Gorka, R4 Co-Designer on 439017M. McAnany, Bergmann Associates, Consultant Engineers on 439017P. Spitzer, R4 Regional Safety Evaluation EngineerR. Duennebacke, R4 Traffic & Safety UnitD. Goehring, R4 Traffic EngineerK. C. Miller, R4 Landscape & Environmental Unit

Map - I390 at 15 &15aNode Numbers 4/14/2011

I390 at 15 &15a 2033 AM Peak Hour ALTERNATIVE E2I:\NYSDOT - Region 4\7168.03 ABC - I-390 at Route 15A and Route 15\2.0 Design\2.3 Calcs\Traffic\SYNCHRO\SYNCHRO 7\Kendrick - E River Intersection\2033\2033 AM Alt E-2 Signalized.syn%user_name%

Kend

rick

Rd

East River

Exit

Ram

p 16

A

15

16

24

25

28

1336

5 10 5

355132

10

20186853

2061089

1147

156182

53688

1018

503

Map - I390 at 15 &15aNode Numbers 4/14/2011

I390 at 15 &15a 2033 PM Peak Hour ALTERNATIVE E2I:\NYSDOT - Region 4\7168.03 ABC - I-390 at Route 15A and Route 15\2.0 Design\2.3 Calcs\Traffic\SYNCHRO\SYNCHRO 7\Kendrick - E River Intersection\2033\2033 PM Alt E-2 Signalized.syn%user_name%

Kend

rick

Rd

East River

Exit

Ram

p 16

A

15

16

24

25

28

1336

15 15 20

194133

5

5150216

7951020

9

61114

7

532396

235106

587

131

Lanes, Volumes, Timings15: E River Rd & Kendrick Rd 4/15/2011

I390 at 15 &15a 4/14/2011 2013 AM Peak Hour ALTERNATIVE E2 Synchro 7 - ReportBergmann Associates Page 1

Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBRLane ConfigurationsVolume (vph) 234 158 10 20 165 658 5 10 5 125 10 67Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900Storage Length (ft) 0 0 150 0 100 0 0 0Storage Lanes 1 0 1 1 1 0 2 0Taper Length (ft) 25 25 75 25 75 25 25 25Lane Util. Factor 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.97 1.00 1.00Frt 0.991 0.850 0.947 0.869Flt Protected 0.950 0.950 0.950 0.950Satd. Flow (prot) 1770 1846 0 1770 1863 1583 1770 1764 0 3433 1619 0Flt Permitted 0.580 0.640 0.950Satd. Flow (perm) 1080 1846 0 1192 1863 1583 1863 1764 0 3433 1619 0Right Turn on Red Yes Yes Yes YesSatd. Flow (RTOR) 4 731 6 74Link Speed (mph) 30 30 30 30Link Distance (ft) 310 745 373 386Travel Time (s) 7.0 16.9 8.5 8.8Peak Hour Factor 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90Adj. Flow (vph) 260 176 11 22 183 731 6 11 6 139 11 74Shared Lane Traffic (%)Lane Group Flow (vph) 260 187 0 22 183 731 6 17 0 139 85 0Enter Blocked Intersection No No No No No No No No No No No NoLane Alignment Left Left Right Left Left Right Left Left Right Left Left RightMedian Width(ft) 12 12 24 24Link Offset(ft) 0 0 0 0Crosswalk Width(ft) 16 16 16 16Two way Left Turn LaneHeadway Factor 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00Turning Speed (mph) 15 9 15 9 15 9 15 9Number of Detectors 1 1 1 1 1 1 1 1 1Detector Template Left Left Right Left LeftLeading Detector (ft) 50 50 50 50 50 50 50 50 50Trailing Detector (ft) 0 0 0 0 0 0 0 0 0Detector 1 Position(ft) 0 0 0 0 0 0 0 0 0Detector 1 Size(ft) 50 50 50 50 50 50 50 50 50Detector 1 Type Cl+Ex Cl+Ex Cl+Ex Cl+Ex Cl+Ex Cl+Ex Cl+Ex Cl+Ex Cl+ExDetector 1 ChannelDetector 1 Extend (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0Detector 1 Queue (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0Detector 1 Delay (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0Turn Type pm+pt pm+pt Free pm+pt ProtProtected Phases 7 4 3 8 5 2 1 6Permitted Phases 4 8 Free 2Detector Phase 7 4 3 8 5 2 1 6Switch PhaseMinimum Initial (s) 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0Minimum Split (s) 12.0 27.0 12.0 27.0 12.0 27.0 12.0 27.0Total Split (s) 19.0 39.0 0.0 12.0 32.0 0.0 12.0 27.0 0.0 12.0 27.0 0.0Total Split (%) 21.1% 43.3% 0.0% 13.3% 35.6% 0.0% 13.3% 30.0% 0.0% 13.3% 30.0% 0.0%



Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBRMaximum Green (s) 14.0 34.0 7.0 27.0 7.0 22.0 7.0 22.0Yellow Time (s) 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5All-Red Time (s) 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0Total Lost Time (s) 5.0 5.0 4.0 5.0 5.0 4.0 5.0 5.0 4.0 5.0 5.0 4.0Lead/Lag Lead Lag Lead Lag Lead Lag Lead LagLead-Lag Optimize?Vehicle Extension (s) 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0Recall Mode None C-Min None C-Min None None None NoneWalk Time (s) 7.0 7.0 7.0 7.0Flash Dont Walk (s) 13.0 13.0 13.0 13.0Pedestrian Calls (#/hr) 0 0 0 0Act Effct Green (s) 66.2 61.6 56.9 51.0 90.0 8.7 6.3 9.0 11.6Actuated g/C Ratio 0.74 0.68 0.63 0.57 1.00 0.10 0.07 0.10 0.13v/c Ratio 0.30 0.15 0.03 0.17 0.46 0.03 0.13 0.41 0.31Control Delay 5.9 8.2 6.4 16.0 1.4 27.8 33.0 41.1 13.7Queue Delay 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0Total Delay 5.9 8.2 6.4 16.0 1.4 27.8 33.0 41.1 13.7LOS A A A B A C C D BApproach Delay 6.9 4.4 31.6 30.7Approach LOS A A C C

Intersection SummaryArea Type: OtherCycle Length: 90Actuated Cycle Length: 90Offset: 0 (0%), Referenced to phase 4:EBTL and 8:WBTL, Start of Green, Master IntersectionNatural Cycle: 80Control Type: Actuated-CoordinatedMaximum v/c Ratio: 0.46Intersection Signal Delay: 9.1 Intersection LOS: AIntersection Capacity Utilization 44.4% ICU Level of Service AAnalysis Period (min) 15

Splits and Phases: 15: E River Rd & Kendrick Rd

Lanes, Volumes, Timings1336: East River Rd & Exit Ramp 16A 4/15/2011


Lane Group EBL EBT WBT WBR SEL SERLane ConfigurationsVolume (vph) 144 139 458 81 991 365Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900Storage Length (ft) 300 0 0 450Storage Lanes 1 1 2 2Taper Length (ft) 100 25 25 150Lane Util. Factor 1.00 *0.95 1.00 1.00 0.97 1.00Frt 0.850 0.850Flt Protected 0.950 0.950Satd. Flow (prot) 1770 3539 1863 1583 3433 1583Flt Permitted 0.247 0.950Satd. Flow (perm) 460 3539 1863 1583 3433 1583Right Turn on Red Yes YesSatd. Flow (RTOR) 90 355Link Speed (mph) 35 35 30Link Distance (ft) 745 2258 745Travel Time (s) 14.5 44.0 16.9Peak Hour Factor 0.90 0.90 0.90 0.90 0.90 0.90Adj. Flow (vph) 160 154 509 90 1101 406Shared Lane Traffic (%)Lane Group Flow (vph) 160 154 509 90 1101 406Enter Blocked Intersection No No No No No NoLane Alignment Left Left Left Right Left RightMedian Width(ft) 24 24 24Link Offset(ft) 0 0 0Crosswalk Width(ft) 16 16 16Two way Left Turn LaneHeadway Factor 1.00 1.00 1.00 1.00 1.00 1.00Turning Speed (mph) 15 9 15 9Number of Detectors 1 1 1 1 1 1Detector TemplateLeading Detector (ft) 50 50 50 50 50 50Trailing Detector (ft) 0 0 0 0 0 0Detector 1 Position(ft) 0 0 0 0 0 0Detector 1 Size(ft) 50 50 50 50 50 50Detector 1 Type Cl+Ex Cl+Ex Cl+Ex Cl+Ex Cl+Ex Cl+ExDetector 1 ChannelDetector 1 Extend (s) 0.0 0.0 0.0 0.0 0.0 0.0Detector 1 Queue (s) 0.0 0.0 0.0 0.0 0.0 0.0Detector 1 Delay (s) 0.0 0.0 0.0 0.0 0.0 0.0Turn Type pm+pt Perm PermProtected Phases 5 2 6 4Permitted Phases 2 6 4Detector Phase 5 2 6 6 4 4Switch PhaseMinimum Initial (s) 3.0 10.0 10.0 10.0 5.0 5.0Minimum Split (s) 13.0 20.0 20.0 20.0 10.0 10.0Total Split (s) 13.0 51.0 38.0 38.0 39.0 39.0Total Split (%) 14.4% 56.7% 42.2% 42.2% 43.3% 43.3%



Lane Group EBL EBT WBT WBR SEL SERMaximum Green (s) 8.0 46.0 33.0 33.0 34.0 34.0Yellow Time (s) 3.5 3.5 3.5 3.5 3.5 3.5All-Red Time (s) 1.5 1.5 1.5 1.5 1.5 1.5Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0Total Lost Time (s) 5.0 5.0 5.0 5.0 5.0 5.0Lead/Lag Lag Lead LeadLead-Lag Optimize?Vehicle Extension (s) 3.0 6.0 6.0 6.0 6.0 6.0Recall Mode None C-Min C-Min C-Min None NoneAct Effct Green (s) 44.9 44.9 32.1 32.1 35.1 35.1Actuated g/C Ratio 0.50 0.50 0.36 0.36 0.39 0.39v/c Ratio 0.47 0.09 0.77 0.14 0.82 0.49Control Delay 18.0 7.9 34.4 5.0 31.3 5.8Queue Delay 0.0 0.0 0.0 0.0 0.0 0.0Total Delay 18.0 7.9 34.4 5.0 31.3 5.8LOS B A C A C AApproach Delay 13.0 30.0 24.5Approach LOS B C C

Intersection SummaryArea Type: OtherCycle Length: 90Actuated Cycle Length: 90Offset: 8 (9%), Referenced to phase 2:EBTL and 6:WBT, Start of GreenNatural Cycle: 65Control Type: Actuated-CoordinatedMaximum v/c Ratio: 0.82Intersection Signal Delay: 24.4 Intersection LOS: CIntersection Capacity Utilization 72.9% ICU Level of Service CAnalysis Period (min) 15* User Entered Value

Splits and Phases: 1336: East River Rd & Exit Ramp 16A


I390 at 15 &15a 4/14/2011 2013 PM Peak Hour ALTERNATIVE E2 Synchro 7 - ReportBergmann Associates Page 1

Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBRLane ConfigurationsVolume (vph) 153 115 5 5 120 157 15 15 20 613 10 165Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900Storage Length (ft) 0 0 150 0 100 0 0 0Storage Lanes 1 0 1 1 1 0 2 0Taper Length (ft) 25 25 75 25 75 25 25 25Lane Util. Factor 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.97 1.00 1.00Frt 0.993 0.850 0.915 0.859Flt Protected 0.950 0.950 0.950 0.950Satd. Flow (prot) 1770 1850 0 1770 1863 1583 1770 1704 0 3433 1600 0Flt Permitted 0.576 0.671 0.714 0.950Satd. Flow (perm) 1073 1850 0 1250 1863 1583 1330 1704 0 3433 1600 0Right Turn on Red Yes Yes Yes YesSatd. Flow (RTOR) 2 174 22 183Link Speed (mph) 30 30 30 30Link Distance (ft) 310 745 373 386Travel Time (s) 7.0 16.9 8.5 8.8Peak Hour Factor 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90Adj. Flow (vph) 170 128 6 6 133 174 17 17 22 681 11 183Shared Lane Traffic (%)Lane Group Flow (vph) 170 134 0 6 133 174 17 39 0 681 194 0Enter Blocked Intersection No No No No No No No No No No No NoLane Alignment Left Left Right Left Left Right Left Left Right Left Left RightMedian Width(ft) 12 12 24 24Link Offset(ft) 0 0 0 0Crosswalk Width(ft) 16 16 16 16Two way Left Turn LaneHeadway Factor 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00Turning Speed (mph) 15 9 15 9 15 9 15 9Number of Detectors 1 1 1 1 1 1 1 1 1Detector Template Left Left Right Left LeftLeading Detector (ft) 50 50 50 50 50 50 50 50 50Trailing Detector (ft) 0 0 0 0 0 0 0 0 0Detector 1 Position(ft) 0 0 0 0 0 0 0 0 0Detector 1 Size(ft) 50 50 50 50 50 50 50 50 50Detector 1 Type Cl+Ex Cl+Ex Cl+Ex Cl+Ex Cl+Ex Cl+Ex Cl+Ex Cl+Ex Cl+ExDetector 1 ChannelDetector 1 Extend (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0Detector 1 Queue (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0Detector 1 Delay (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0Turn Type pm+pt pm+pt Free pm+pt ProtProtected Phases 7 4 3 8 5 2 1 6Permitted Phases 4 8 Free 2Detector Phase 7 4 3 8 5 2 1 6Switch PhaseMinimum Initial (s) 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0Minimum Split (s) 12.0 27.0 12.0 27.0 12.0 27.0 12.0 27.0Total Split (s) 12.0 27.0 0.0 12.0 27.0 0.0 12.0 27.0 0.0 24.0 39.0 0.0Total Split (%) 13.3% 30.0% 0.0% 13.3% 30.0% 0.0% 13.3% 30.0% 0.0% 26.7% 43.3% 0.0%



Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBRMaximum Green (s) 7.0 22.0 7.0 22.0 7.0 22.0 19.0 34.0Yellow Time (s) 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5All-Red Time (s) 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0Total Lost Time (s) 5.0 5.0 4.0 5.0 5.0 4.0 5.0 5.0 4.0 5.0 5.0 4.0Lead/Lag Lead Lag Lead Lag Lead Lag Lead LagLead-Lag Optimize?Vehicle Extension (s) 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0Recall Mode None C-Min None C-Min None None None NoneWalk Time (s) 7.0 7.0 7.0 7.0Flash Dont Walk (s) 13.0 13.0 13.0 13.0Pedestrian Calls (#/hr) 0 0 0 0Act Effct Green (s) 48.6 46.4 39.0 33.3 90.0 10.6 6.7 23.8 26.7Actuated g/C Ratio 0.54 0.52 0.43 0.37 1.00 0.12 0.07 0.26 0.30v/c Ratio 0.26 0.14 0.01 0.19 0.11 0.09 0.26 0.75 0.32Control Delay 14.0 15.6 17.2 32.4 0.1 19.8 27.1 35.8 5.9Queue Delay 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0Total Delay 14.0 15.6 17.2 32.4 0.1 19.8 27.1 35.8 5.9LOS B B B C A B C D AApproach Delay 14.7 14.2 24.9 29.2Approach LOS B B C C

Intersection SummaryArea Type: OtherCycle Length: 90Actuated Cycle Length: 90Offset: 0 (0%), Referenced to phase 4:EBTL and 8:WBTL, Start of Green, Master IntersectionNatural Cycle: 90Control Type: Actuated-CoordinatedMaximum v/c Ratio: 0.75Intersection Signal Delay: 23.2 Intersection LOS: CIntersection Capacity Utilization 47.6% ICU Level of Service AAnalysis Period (min) 15




Lane Group EBL EBT WBT WBR SEL SERMaximum Green (s) 29.0 56.0 22.0 22.0 24.0 24.0Yellow Time (s) 3.5 3.5 3.5 3.5 3.5 3.5All-Red Time (s) 1.5 1.5 1.5 1.5 1.5 1.5Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0Total Lost Time (s) 5.0 5.0 5.0 5.0 5.0 5.0Lead/Lag Lag Lead LeadLead-Lag Optimize?Vehicle Extension (s) 3.0 6.0 6.0 6.0 6.0 6.0Recall Mode None C-Min C-Min C-Min None NoneAct Effct Green (s) 56.4 56.4 23.5 23.5 23.6 23.6Actuated g/C Ratio 0.63 0.63 0.26 0.26 0.26 0.26v/c Ratio 0.65 0.11 0.47 0.21 0.69 0.17Control Delay 11.5 2.2 33.3 7.1 34.5 7.3Queue Delay 0.0 0.0 0.0 0.0 0.0 0.0Total Delay 11.5 2.2 33.3 7.1 34.5 7.3LOS B A C A C AApproach Delay 8.6 25.2 31.4Approach LOS A C C

Intersection SummaryArea Type: OtherCycle Length: 90Actuated Cycle Length: 90Offset: 20 (22%), Referenced to phase 2:EBTL and 6:WBT, Start of GreenNatural Cycle: 55Control Type: Actuated-CoordinatedMaximum v/c Ratio: 0.69Intersection Signal Delay: 20.3 Intersection LOS: CIntersection Capacity Utilization 66.9% ICU Level of Service CAnalysis Period (min) 15* User Entered Value



I390 at 15 &15a 2033 AM Peak Hour ALTERNATIVE E2 Synchro 7 - ReportBergmann Associates Page 1

Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBRLane ConfigurationsVolume (vph) 355 132 10 20 186 853 5 10 5 206 10 89Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900Storage Length (ft) 0 0 150 0 100 0 0 0Storage Lanes 1 0 1 1 1 0 2 0Taper Length (ft) 25 25 75 25 75 25 25 25Lane Util. Factor 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.97 1.00 1.00Frt 0.990 0.850 0.947 0.865Flt Protected 0.950 0.950 0.950 0.950Satd. Flow (prot) 1770 1844 0 1770 1863 1583 1770 1764 0 3433 1611 0Flt Permitted 0.542 0.657 0.950Satd. Flow (perm) 1010 1844 0 1224 1863 1583 1863 1764 0 3433 1611 0Right Turn on Red Yes Yes Yes YesSatd. Flow (RTOR) 5 702 6 99Link Speed (mph) 30 30 30 30Link Distance (ft) 310 745 373 386Travel Time (s) 7.0 16.9 8.5 8.8Peak Hour Factor 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90Adj. Flow (vph) 394 147 11 22 207 948 6 11 6 229 11 99Shared Lane Traffic (%)Lane Group Flow (vph) 394 158 0 22 207 948 6 17 0 229 110 0Enter Blocked Intersection No No No No No No No No No No No NoLane Alignment Left Left Right Left Left Right Left Left Right Left Left RightMedian Width(ft) 12 12 24 24Link Offset(ft) 0 0 0 0Crosswalk Width(ft) 16 16 16 16Two way Left Turn LaneHeadway Factor 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00Turning Speed (mph) 15 9 15 9 15 9 15 9Number of Detectors 1 1 1 1 1 1 1 1 1Detector Template Left Left Right Left LeftLeading Detector (ft) 50 50 50 50 50 50 50 50 50Trailing Detector (ft) 0 0 0 0 0 0 0 0 0Detector 1 Position(ft) 0 0 0 0 0 0 0 0 0Detector 1 Size(ft) 50 50 50 50 50 50 50 50 50Detector 1 Type Cl+Ex Cl+Ex Cl+Ex Cl+Ex Cl+Ex Cl+Ex Cl+Ex Cl+Ex Cl+ExDetector 1 ChannelDetector 1 Extend (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0Detector 1 Queue (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0Detector 1 Delay (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0Turn Type pm+pt pm+pt Free pm+pt ProtProtected Phases 7 4 3 8 5 2 1 6Permitted Phases 4 8 Free 2Detector Phase 7 4 3 8 5 2 1 6Switch PhaseMinimum Initial (s) 3.0 3.0 2.0 3.0 3.0 3.0 2.0 3.0Minimum Split (s) 12.0 27.0 12.0 27.0 12.0 27.0 12.0 27.0Total Split (s) 21.0 37.0 0.0 12.0 28.0 0.0 12.0 27.0 0.0 14.0 29.0 0.0Total Split (%) 23.3% 41.1% 0.0% 13.3% 31.1% 0.0% 13.3% 30.0% 0.0% 15.6% 32.2% 0.0%



Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBRMaximum Green (s) 16.0 32.0 7.0 23.0 7.0 22.0 9.0 24.0Yellow Time (s) 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5All-Red Time (s) 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0Total Lost Time (s) 5.0 5.0 4.0 5.0 5.0 4.0 5.0 5.0 4.0 5.0 5.0 4.0Lead/Lag Lead Lag Lead Lag Lead Lag Lead LagLead-Lag Optimize?Vehicle Extension (s) 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0Recall Mode None C-Min None C-Min None None None NoneWalk Time (s) 7.0 7.0 7.0 7.0Flash Dont Walk (s) 13.0 13.0 13.0 13.0Pedestrian Calls (#/hr) 0 0 0 0Act Effct Green (s) 64.0 59.4 51.1 45.2 90.0 8.7 6.3 11.1 13.7Actuated g/C Ratio 0.71 0.66 0.57 0.50 1.00 0.10 0.07 0.12 0.15v/c Ratio 0.47 0.13 0.03 0.22 0.60 0.03 0.13 0.54 0.33Control Delay 8.3 9.1 8.2 20.3 2.3 26.6 33.0 41.5 11.3Queue Delay 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0Total Delay 8.3 9.1 8.2 20.3 2.3 26.6 33.0 41.5 11.3LOS A A A C A C C D BApproach Delay 8.5 5.6 31.3 31.7Approach LOS A A C C

Intersection SummaryArea Type: OtherCycle Length: 90Actuated Cycle Length: 90Offset: 0 (0%), Referenced to phase 4:EBTL and 8:WBTL, Start of Green, Master IntersectionNatural Cycle: 80Control Type: Actuated-CoordinatedMaximum v/c Ratio: 0.60Intersection Signal Delay: 10.9 Intersection LOS: BIntersection Capacity Utilization 54.5% ICU Level of Service AAnalysis Period (min) 15




Lane Group EBL EBT WBT WBR SEL SERMaximum Green (s) 8.0 47.0 34.0 34.0 33.0 33.0Yellow Time (s) 3.5 3.5 3.5 3.5 3.5 3.5All-Red Time (s) 1.5 1.5 1.5 1.5 1.5 1.5Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0Total Lost Time (s) 5.0 5.0 5.0 5.0 5.0 5.0Lead/Lag Lag Lead LeadLead-Lag Optimize?Vehicle Extension (s) 3.0 6.0 6.0 6.0 6.0 6.0Recall Mode None C-Min C-Min C-Min None NoneAct Effct Green (s) 45.7 45.7 32.9 32.9 34.3 34.3Actuated g/C Ratio 0.51 0.51 0.37 0.37 0.38 0.38v/c Ratio 0.60 0.11 0.87 0.15 0.86 0.70Control Delay 19.5 4.4 42.0 4.7 34.7 15.4Queue Delay 0.0 0.0 0.0 0.0 0.0 0.0Total Delay 19.5 4.4 42.0 4.7 34.7 15.4LOS B A D A C BApproach Delay 11.4 36.7 28.4Approach LOS B D C

Intersection SummaryArea Type: OtherCycle Length: 90Actuated Cycle Length: 90Offset: 5 (6%), Referenced to phase 2:EBTL and 6:WBT, Start of GreenNatural Cycle: 80Control Type: Actuated-CoordinatedMaximum v/c Ratio: 0.87Intersection Signal Delay: 28.2 Intersection LOS: CIntersection Capacity Utilization 78.4% ICU Level of Service DAnalysis Period (min) 15* User Entered Value



I390 at 15 &15a 2033 PM Peak Hour ALTERNATIVE E2 Synchro 7 - ReportBergmann Associates Page 1

Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBRLane ConfigurationsVolume (vph) 194 133 5 5 150 216 15 15 20 795 10 209Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900Storage Length (ft) 0 0 150 0 100 0 0 0Storage Lanes 1 0 1 1 1 0 2 0Taper Length (ft) 25 25 75 25 75 25 25 25Lane Util. Factor 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.97 1.00 1.00Frt 0.994 0.850 0.915 0.857Flt Protected 0.950 0.950 0.950 0.950Satd. Flow (prot) 1770 1852 0 1770 1863 1583 1770 1704 0 3433 1596 0Flt Permitted 0.495 0.659 0.727 0.950Satd. Flow (perm) 922 1852 0 1228 1863 1583 1354 1704 0 3433 1596 0Right Turn on Red Yes Yes Yes YesSatd. Flow (RTOR) 2 240 22 232Link Speed (mph) 30 30 30 30Link Distance (ft) 310 745 373 386Travel Time (s) 7.0 16.9 8.5 8.8Peak Hour Factor 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90 0.90Adj. Flow (vph) 216 148 6 6 167 240 17 17 22 883 11 232Shared Lane Traffic (%)Lane Group Flow (vph) 216 154 0 6 167 240 17 39 0 883 243 0Enter Blocked Intersection No No No No No No No No No No No NoLane Alignment Left Left Right Left Left Right Left Left Right Left Left RightMedian Width(ft) 12 12 24 24Link Offset(ft) 0 0 0 0Crosswalk Width(ft) 16 16 16 16Two way Left Turn LaneHeadway Factor 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00Turning Speed (mph) 15 9 15 9 15 9 15 9Number of Detectors 1 1 1 1 1 1 1 1 1Detector Template Left Left Right Left LeftLeading Detector (ft) 50 50 50 50 50 50 50 50 50Trailing Detector (ft) 0 0 0 0 0 0 0 0 0Detector 1 Position(ft) 0 0 0 0 0 0 0 0 0Detector 1 Size(ft) 50 50 50 50 50 50 50 50 50Detector 1 Type Cl+Ex Cl+Ex Cl+Ex Cl+Ex Cl+Ex Cl+Ex Cl+Ex Cl+Ex Cl+ExDetector 1 ChannelDetector 1 Extend (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0Detector 1 Queue (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0Detector 1 Delay (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0Turn Type pm+pt pm+pt Free pm+pt ProtProtected Phases 7 4 3 8 5 2 1 6Permitted Phases 4 8 Free 2Detector Phase 7 4 3 8 5 2 1 6Switch PhaseMinimum Initial (s) 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0Minimum Split (s) 12.0 27.0 12.0 27.0 12.0 27.0 12.0 27.0Total Split (s) 12.0 27.0 0.0 12.0 27.0 0.0 12.0 27.0 0.0 24.0 39.0 0.0Total Split (%) 13.3% 30.0% 0.0% 13.3% 30.0% 0.0% 13.3% 30.0% 0.0% 26.7% 43.3% 0.0%



Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBRMaximum Green (s) 7.0 22.0 7.0 22.0 7.0 22.0 19.0 34.0Yellow Time (s) 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5All-Red Time (s) 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0Total Lost Time (s) 5.0 5.0 4.0 5.0 5.0 4.0 5.0 5.0 4.0 5.0 5.0 4.0Lead/Lag Lead Lag Lead Lag Lead Lag Lead LagLead-Lag Optimize?Vehicle Extension (s) 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0Recall Mode None C-Min None C-Min None None None NoneWalk Time (s) 7.0 7.0 7.0 7.0Flash Dont Walk (s) 13.0 13.0 13.0 13.0Pedestrian Calls (#/hr) 0 0 0 0Act Effct Green (s) 43.6 41.4 32.1 26.4 90.0 10.6 6.7 28.9 31.7Actuated g/C Ratio 0.48 0.46 0.36 0.29 1.00 0.12 0.07 0.32 0.35v/c Ratio 0.38 0.18 0.01 0.31 0.15 0.09 0.26 0.80 0.34Control Delay 16.5 16.7 22.0 41.6 0.2 19.9 27.1 36.0 5.5Queue Delay 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0Total Delay 16.5 16.7 22.0 41.6 0.2 19.9 27.1 36.0 5.5LOS B B C D A B C D AApproach Delay 16.6 17.3 24.9 29.4Approach LOS B B C C

Intersection SummaryArea Type: OtherCycle Length: 90Actuated Cycle Length: 90Offset: 0 (0%), Referenced to phase 4:EBTL and 8:WBTL, Start of Green, Master IntersectionNatural Cycle: 90Control Type: Actuated-CoordinatedMaximum v/c Ratio: 0.80Intersection Signal Delay: 24.3 Intersection LOS: CIntersection Capacity Utilization 60.5% ICU Level of Service BAnalysis Period (min) 15




Lane Group EBL EBT WBT WBR SEL SERMaximum Green (s) 31.0 57.0 21.0 21.0 23.0 23.0Yellow Time (s) 3.5 3.5 3.5 3.5 3.5 3.5All-Red Time (s) 1.5 1.5 1.5 1.5 1.5 1.5Lost Time Adjust (s) 0.0 0.0 0.0 0.0 0.0 0.0Total Lost Time (s) 5.0 5.0 5.0 5.0 5.0 5.0Lead/Lag Lag Lead LeadLead-Lag Optimize?Vehicle Extension (s) 3.0 6.0 6.0 6.0 6.0 6.0Recall Mode None C-Min C-Min C-Min None NoneAct Effct Green (s) 56.9 56.9 22.9 22.9 23.1 23.1Actuated g/C Ratio 0.63 0.63 0.25 0.25 0.26 0.26v/c Ratio 0.71 0.20 0.55 0.24 0.74 0.28Control Delay 9.7 2.3 35.4 7.0 36.5 6.4Queue Delay 0.0 0.0 0.0 0.0 0.0 0.0Total Delay 9.7 2.3 35.4 7.0 36.5 6.4LOS A A D A D AApproach Delay 6.6 26.6 31.0Approach LOS A C C

Intersection SummaryArea Type: OtherCycle Length: 90Actuated Cycle Length: 90Offset: 11 (12%), Referenced to phase 2:EBTL and 6:WBT, Start of GreenNatural Cycle: 55Control Type: Actuated-CoordinatedMaximum v/c Ratio: 0.74Intersection Signal Delay: 18.8 Intersection LOS: BIntersection Capacity Utilization 71.1% ICU Level of Service CAnalysis Period (min) 15* User Entered Value
