I-275 & SR4 INTERCHANGE OPERATIONS STUDY 1 Project Summary Location SR-4 and I-275 Interchange Springdale, Ohio Hamilton County PID Study Sponsor ODOT, District 8 Proposed Work This Interchange Operations Study examines the impact of the addition of a lane to the ramp from southbound SR-4 to I-275. Design plan sheets showing the proposed recommendation are included in Appendix E.
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I-275 & SR4 INTERCHANGE OPERATIONS STUDY · I-275 & SR4 INTERCHANGE OPERATIONS STUDY . 3 WB I-275 Merge from SB SR-4 EB I-275 Merge from SB SR-4 EB I-275 Merge from NB SR-4
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I-275 & SR4 INTERCHANGE OPERATIONS STUDY
1
Project Summary Location SR-4 and I-275 Interchange
Springdale, Ohio
Hamilton County
PID
Study Sponsor ODOT, District 8
Proposed Work This Interchange Operations Study examines the impact of the addition of a lane to the ramp from southbound SR-4 to I-275. Design plan sheets showing the proposed recommendation are included in Appendix E.
I-275 & SR4 INTERCHANGE OPERATIONS STUDY
2
Study Area
HCS Analysis Points:
Freeway Analysis:
WB I-275 East of SR-4 Exit Ramp
WB I-275 East of NB SR-4 Merge
WB I-275 West of NB SR-4 Merge
WB I-275 West of SB SR-4 Merge
EB I-275 West of SB SR-4 Merge
EB I-275 East of SB SR-4 Merge
Ramp Analysis:
WB I-275 Diverge to SR-4
WB I-275 Merge from NB SR-4
I-275 & SR4 INTERCHANGE OPERATIONS STUDY
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WB I-275 Merge from SB SR-4
EB I-275 Merge from SB SR-4
EB I-275 Merge from NB SR-4
Intersection Analysis:
EB I-275 Ramps with SR-4
WB I-275 Ramps with SR-4
SR-4 & Crescentville/Ray Norrish
Problem Description The SR-4 corridor is a principal arterial serving various residential and commercial areas within Butler County including the communities of Fairfield, Hamilton, and Fairfield Township. As part of that commuter corridor, the SR-4 & I-275 interchange serves as the primary access to this area. Continued increase in commercial and residential development along Crescentville Road and SR-4 north of I-275 has greatly increased traffic along SR-4 to and from north of I-275. This increase in traffic demand has caused the existing single lane ramp to be over capacity increasing congestion and causing excessive traffic queues due to lane utilization at SR-4 and Crescentville. The addition of a second lane to the exit ramp would allow for a thru/right lane on SB SR-4, provide a separate lane for EB and WB I-275 traffic, and therefore allow for better lane utilization on SR-4 at Crescentville, reducing congestion and queues. Design plan sheets for the proposed recommendations have been included in Appendix E.
Traffic Analysis Posted Speed Limits (of Roadways within the Study Area):
The intersection analysis at SR-4 and Crescentville took into account the existing lane utilization
for southbound SR-4. Currently the majority of thru/right traffic utilizes the curb lane at
Crescentville as this is the only lane which accesses I-275. Under the build conditions the lane
utilization was re-adjusted to account for the access to the I-275 EB ramp from the center thru
lane. Additionally, the analysis at SR-4 and Crescentville resulted in v/c ratios of greater than
1.0 for some movements contributing to the I-275 ramp traffic. As such, constraint analysis was
performed. The reduced traffic volumes were spread through all affected movements within
the system proportionally.
I-275 & SR4 INTERCHANGE OPERATIONS STUDY
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Freeway Analysis Results:
I-275 WB Mainline
2037 AM No-Build Geometry
2037 AM Build Geometry
2037 PM No-Build Geometry
2037 PM Build Geometry
LOS Density
(pc/mi/ln) LOS Density
(pc/mi/ln) LOS Density
(pc/mi/ln) LOS Density
(pc/mi/ln)
WB I-275 E of SR-4 Diverge
C 21.4 C 21.4 C 23.8 C 23.8
WB-275 W of SR-4 Diverge
C 18.2 C 18.2 C 20.9 C 20.9
WB I-275 W of NB SR-4 Merge
C 18.6 C 18.6 C 22.2 C 22.2
WB I-275 W of SB SR-4 Merge
C 20.5 C 20.5 D 27.1 D 27.1
I-275 EB Mainline
2037 AM No-Build Geometry
2037 AM Build Geometry
2037 PM No-Build Geometry
2037 PM Build Geometry
LOS Density
(pc/mi/ln) LOS Density
(pc/mi/ln) LOS Density
(pc/mi/ln) LOS Density
(pc/mi/ln)
EB I-275 W of SB SR-4 Merge
C 19.5 C 19.5 C 24.7 C 24.7
EB I-275 E of SB SR-4 Merge
C 24.9 C 25.0 D 29.8 D 30.0
The proposed geometric modifications do not degrade the operations on the freeway mainline when comparing the no build and build conditions. Ramp Analysis Results:
I-275 WB Ramps
2037 AM No-Build Geometry
2037 AM Build Geometry
2037 PM No-Build Geometry
2037 PM Build Geometry
LOS Density
(pc/mi/ln) LOS Density
(pc/mi/ln) LOS Density
(pc/mi/ln) LOS Density
(pc/mi/ln)
NB SR-4 Merge B 12.5 B 12.5 B 16.0 B 16.0
SB SR-4 Merge B 13.5 B 13.6 B 19.7 B 19.8
I-275 EB Ramps
2037 AM No-Build Geometry
2037 AM Build Geometry
2037 PM No-Build Geometry
2037 PM Build Geometry
LOS Density
(pc/mi/ln) LOS Density
(pc/mi/ln) LOS Density
(pc/mi/ln) LOS Density
(pc/mi/ln)
NB SR-4 Merge B 15.2 B 15.2 B 16.0 B 16.1
The westbound I-275 to SR-4 ramp is not analyzed as a diverge section. The existing configuration of the interchange from westbound I-275 ramp to SR- 4 includes an exit only lane,
I-275 & SR4 INTERCHANGE OPERATIONS STUDY
5
creating a lane drop from mainline I-275. Based on this configuration there is no diverge and the existing ramp functions as a ramp roadway. The only analysis of a lane drop is the ramp roadway capacity check. Based upon the HCM exhibit 13-10, a single lane ramp roadway with a design speed of 30-40 mph has a capacity of 2000 pc/h. A review of the 2037 No Build/Build volumes indicates that the ramp does exceed the 2000 pc/h recommended capacity limit for a single lane ramp during both the AM and PM peak analysis periods which suggests congested conditions on the ramp during these periods. The westbound ramp is signalized for the left turn to southbound SR-4 and this movement was analyzed as part of the signalized intersection. The right turn from westbound to northbound is a continuous right turn, becoming an add-lane on SR-4. This movement therefore operates as a ramp roadway. The volume for this movement does not exceed 2000 pc/h for any peak indicating the new geometry will not negatively impact the operation of this ramp. The existing northbound SR-4 to eastbound I-275 entrance ramp is not analyzed as a signalized movement with the I-275 eastbound exit ramp. This is because the entrance ramp is a continuous, free-flow movement at this point. Based on this configuration the existing ramp functions as a ramp roadway. The only analysis of a lane drop is the ramp roadway capacity check. Based upon the HCM exhibit 13-10, a single lane ramp roadway with a design speed of 30-40 mph has a capacity of 2000 pc/h. A review of the 2037 No Build/Build volumes indicates that the entrance ramp does not exceed the 2000 pc/h recommended capacity limit for a single lane ramp during the and peak analysis period indicating this ramp will function adequately during all peak periods. The existing northbound SR-4 to westbound I-275 entrance ramp is not analyzed as a signalized movement with the I-275 westbound exit ramp. This is because the entrance ramp is a continuous, free-flow movement at this point. Based on this configuration the existing ramp functions as a ramp roadway. The only analysis of a lane drop is the ramp roadway capacity check. Based upon the HCM exhibit 13-10, a single lane ramp roadway with a design speed of 30-40 mph has a capacity of 2000 pc/h. A review of the 2037 No Build/Build volumes indicates that the entrance ramp does not exceed the 2000 pc/h recommended capacity limit for a single lane ramp during the and peak analysis period indicating this ramp will function adequately during all peak periods. The existing southbound SR-4 to I-275 entrance ramp is a single lane ramp which is a continuous thru movement at the intersection of SR-4 with the I-275 WB off ramp and therefore was not analyzed with the intersection analysis. The only analysis for the continuous movement at the intersection is the ramp roadway capacity check. A review of the 2037 No Build/Build volumes indicates the ramp demand does not exceed the 2000 pc/h recommended capacity provided in HCM exhibit 13-10. The proposed project is to widen the existing single lane ramp to add a lane. This would provide a separate lane for westbound I-275 and eastbound I-275 entrance traffic. The proposed geometry increases the capacity of the ramp to 4,000 pc/h total, or 2,000 pc/h per lane according to exhibit 13-10 of the HCM. Neither the combined ramp volume nor the volume separated by direction exceed these recommended
I-275 & SR4 INTERCHANGE OPERATIONS STUDY
6
capacity limits indicating the proposed geometry will operate adequately under existing and future traffic conditions. The proposed geometric modifications do not degrade the operations on the ramp facilities when comparing the no build and build conditions. Intersection Analysis Results:
SR-4 Signalized Intersections
2037 AM No-Build Geometry
2037 AM Build Geometry
2037 PM No-Build Geometry
2037 PM Build Geometry
LOS Delay
(sec/veh) LOS Delay
(sec/veh) LOS Delay
(sec/veh) LOS Delay
(sec/veh)
SR 4 & Crescentville SR 4 & Crescentville
NB Approach D 50.2 E 62.3 F 110.2 F 100.0
SB Approach E 67.3 E 68.7 E 65.7 D 36.3
EB Approach F 82.9 E 74.8 F 98.3 F 98.3
WB Approach E 76.5 E 75.1 F 98.0 E 72.6
Overall Intersection
E 58.7 E 65.6 F 93.3 E 74.9
SR 4 & WB I-275 Ramp SR 4 & WB I-275 Ramp
NB Approach C 30.0 C 30.0 C 32.7 C 32.7
SB Approach C 20.5 C 20.6 C 22.0 C 22.2
EB Approach - - - - - -
WB Approach C 28.8 C 28.8 C 31.8 C 31.8
Overall Intersection
C 27.0 C 27.0 C 29.3 C 29.3
SR 4 & EB I-275 Ramp SR 4 & EB I-275 Ramp
NB Approach C 21.5 C 21.5 C 26.6 C 26.6
SB Approach C 26.7 C 26.9 C 26.1 C 26.4
EB Approach C 28.1 C 28.1 C 26.2 C 26.2
WB Approach - - - - - -
Overall Intersection
C 26.1 C 26.2 C 26.3 C 26.5
The results of the intersection analysis indicate the proposed modifications do not degrade intersection LOS at any of the study intersections.
I-275 & SR4 INTERCHANGE OPERATIONS STUDY
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No-Build SB SR 4 & I-275 Entrance Ramp
I-275 & SR4 INTERCHANGE OPERATIONS STUDY
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Build SB SR 4 & I-275 Entrance Ramp
I-275 & SR4 INTERCHANGE OPERATIONS STUDY
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Conclusion: The IOS verifies that the level of service is not degraded between the design year no-build condition and the design year build condition. The study meets the requirements of the Ohio Department of Transportation. Attachments Appendix A – HCS Results – Freeway Section Appendix B – HCS Results – Ramp Analysis Appendix C – HCS Results – Intersection Analysis Appendix D – Certified Traffic Appendix E – Design Plan Sheets
Appendix A
BASIC FREEWAY SEGMENTS WORKSHEET
General Information Site Information
Analyst SGB Highway/Direction of Travel I-275 EB Agency or Company TEC Engineering, Inc. From/To E of SB SR-4 Merge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period AM No-Build Constraint Analysis Year 2037
Project Description I-275 & SR-4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 6150 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Level
DDHV = AADT x K x D veh/h Grade % Length mi
Up/Down %
Calculate Flow Adjustments
fp 1.00 E
R 1.2
ET 1.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.976
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 4
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1677 pc/h/ln
S 67.4 mph
D = vp / S 24.9 pc/mi/ln
LOS C
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
Analyst SGB Highway/Direction of Travel I-275 EB Agency or Company TEC Engineering, Inc. From/To E of SB SR-4 Merge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period AM Build Constraint Analysis Year 2037
Project Description I-275 & SR-4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 6170 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Level
DDHV = AADT x K x D veh/h Grade % Length mi
Up/Down %
Calculate Flow Adjustments
fp 1.00 E
R 1.2
ET 1.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.976
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 4
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1682 pc/h/ln
S 67.3 mph
D = vp / S 25.0 pc/mi/ln
LOS C
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
Analyst SGB Highway/Direction of Travel I-275 EB Agency or Company TEC Engineering, Inc. From/To W of SB SR-4 Merge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period AM No-Build Analysis Year 2037
Project Description I-275 & SR-4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 4980 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Level
DDHV = AADT x K x D veh/h Grade % Length mi
Up/Down %
Calculate Flow Adjustments
fp 1.00 E
R 1.2
ET 1.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.976
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 4
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1358 pc/h/ln
S 69.7 mph
D = vp / S 19.5 pc/mi/ln
LOS C
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
Analyst SGB Highway/Direction of Travel I-275 EB Agency or Company TEC Engineering, Inc. From/To W of SB SR-4 Merge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period AM Build Analysis Year 2037
Project Description I-275 & SR-4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 4980 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Level
DDHV = AADT x K x D veh/h Grade % Length mi
Up/Down %
Calculate Flow Adjustments
fp 1.00 E
R 1.2
ET 1.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.976
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 4
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1358 pc/h/ln
S 69.7 mph
D = vp / S 19.5 pc/mi/ln
LOS C
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
Analyst SGB Highway/Direction of Travel I-275 EB Agency or Company TEC Engineering, Inc. From/To E of SB SR-4 Merge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period PM No-Build Constraint Analysis Year 2037
Project Description I-275 & SR-4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 7014 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Level
DDHV = AADT x K x D veh/h Grade % Length mi
Up/Down %
Calculate Flow Adjustments
fp 1.00 E
R 1.2
ET 1.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.976
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 4
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1912 pc/h/ln
S 64.1 mph
D = vp / S 29.8 pc/mi/ln
LOS D
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
Analyst SGB Highway/Direction of Travel I-275 EB Agency or Company TEC Engineering, Inc. From/To E of SB SR-4 Merge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period PM Build Analysis Year 2037
Project Description I-275 & SR-4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 7040 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Level
DDHV = AADT x K x D veh/h Grade % Length mi
Up/Down %
Calculate Flow Adjustments
fp 1.00 E
R 1.2
ET 1.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.976
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 4
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1919 pc/h/ln
S 64.0 mph
D = vp / S 30.0 pc/mi/ln
LOS D
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
Analyst SGB Highway/Direction of Travel I-275 EB Agency or Company TEC Engineering, Inc. From/To W of SB SR-4 Merge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period PM No-Build Analysis Year 2037
Project Description I-275 & SR-4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 6120 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Level
DDHV = AADT x K x D veh/h Grade % Length mi
Up/Down %
Calculate Flow Adjustments
fp 1.00 E
R 1.2
ET 1.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.976
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 4
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1668 pc/h/ln
S 67.5 mph
D = vp / S 24.7 pc/mi/ln
LOS C
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
Analyst SGB Highway/Direction of Travel I-275 EB Agency or Company TEC Engineering, Inc. From/To W of SB SR-4 Merge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period PM Build Analysis Year 2037
Project Description I-275 & SR-4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 6120 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Level
DDHV = AADT x K x D veh/h Grade % Length mi
Up/Down %
Calculate Flow Adjustments
fp 1.00 E
R 1.2
ET 1.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.976
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 4
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1668 pc/h/ln
S 67.5 mph
D = vp / S 24.7 pc/mi/ln
LOS C
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
Analyst SGB Highway/Direction of Travel I-275 WB Agency or Company TEC Engineering, Inc. From/To East of SR-4 Diverge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period AM No-Build Analysis Year 2037
Project Description I-275 & SR 4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 6780 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Level
DDHV = AADT x K x D veh/h Grade % Length mi
Up/Down %
Calculate Flow Adjustments
fp 1.00 E
R 1.2
ET 1.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.976
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 5
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1479 pc/h/ln
S 69.1 mph
D = vp / S 21.4 pc/mi/ln
LOS C
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
Analyst SGB Highway/Direction of Travel I-275 WB Agency or Company TEC Engineering, Inc. From/To East of SR-4 Diverge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period AM Build Analysis Year 2037
Project Description I-275 & SR 4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 6780 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Level
DDHV = AADT x K x D veh/h Grade % Length mi
Up/Down %
Calculate Flow Adjustments
fp 1.00 E
R 1.2
ET 1.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.976
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 5
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1479 pc/h/ln
S 69.1 mph
D = vp / S 21.4 pc/mi/ln
LOS C
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
Analyst SGB Highway/Direction of Travel I-275 WB Agency or Company TEC Engineering, Inc. From/To W of SR 4 Diverge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period AM No-Build Analysis Year 2037
Project Description I-275 & SR 4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 4660 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Level
DDHV = AADT x K x D veh/h Grade % Length mi
Up/Down %
Calculate Flow Adjustments
fp 1.00 E
R 1.2
ET 1.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.976
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 4
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1270 pc/h/ln
S 69.9 mph
D = vp / S 18.2 pc/mi/ln
LOS C
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
Analyst SGB Highway/Direction of Travel I-275 WB Agency or Company TEC Engineering, Inc. From/To W of SR 4 Diverge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period AM Build Analysis Year 2037
Project Description I-275 & SR 4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 4660 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Level
DDHV = AADT x K x D veh/h Grade % Length mi
Up/Down %
Calculate Flow Adjustments
fp 1.00 E
R 1.2
ET 1.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.976
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 4
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1270 pc/h/ln
S 69.9 mph
D = vp / S 18.2 pc/mi/ln
LOS C
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
Analyst SGB Highway/Direction of Travel I-275 WB Agency or Company TEC Engineering, Inc. From/To W of NB SR-4 Merge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period AM No-Build Analysis Year 2037
Project Description I-275 & SR 4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 4780 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Level
DDHV = AADT x K x D veh/h Grade % Length mi
Up/Down %
Calculate Flow Adjustments
fp 1.00 E
R 1.2
ET 1.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.976
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 4
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1303 pc/h/ln
S 69.9 mph
D = vp / S 18.6 pc/mi/ln
LOS C
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
Analyst SGB Highway/Direction of Travel I-275 WB Agency or Company TEC Engineering, Inc. From/To W of NB SR-4 Merge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period AM Build Analysis Year 2037
Project Description I-275 & SR 4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 4780 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Level
DDHV = AADT x K x D veh/h Grade % Length mi
Up/Down %
Calculate Flow Adjustments
fp 1.00 E
R 1.2
ET 1.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.976
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 4
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1303 pc/h/ln
S 69.9 mph
D = vp / S 18.6 pc/mi/ln
LOS C
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
Analyst SGB Highway/Direction of Travel I-275 WB Agency or Company TEC Engineering, Inc. From/To W of SB SR-4 Merge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period AM No-Build Constraint Analysis Year 2037
Project Description I-275 & SR 4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 4985 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Grade
DDHV = AADT x K x D veh/h Grade 3.00% Length 1.25mi
Up/Down % 3.00
Calculate Flow Adjustments
fp 1.00 E
R 3.0
ET 2.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.930
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 4
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1425 pc/h/ln
S 69.4 mph
D = vp / S 20.5 pc/mi/ln
LOS C
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
Analyst SGB Highway/Direction of Travel I-275 WB Agency or Company TEC Engineering, Inc. From/To W of SB SR-4 Merge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period AM Build Constraint Analysis Year 2037
Project Description I-275 & SR 4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 4988 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Grade
DDHV = AADT x K x D veh/h Grade 3.00% Length 1.25mi
Up/Down % 3.00
Calculate Flow Adjustments
fp 1.00 E
R 3.0
ET 2.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.930
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 4
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1426 pc/h/ln
S 69.4 mph
D = vp / S 20.5 pc/mi/ln
LOS C
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
Analyst SGB Highway/Direction of Travel I-275 WB Agency or Company TEC Engineering, Inc. From/To East of SR-4 Diverge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period PM No-Build Analysis Year 2037
Project Description I-275 & SR 4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 7420 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Level
DDHV = AADT x K x D veh/h Grade % Length mi
Up/Down %
Calculate Flow Adjustments
fp 1.00 E
R 1.2
ET 1.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.976
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 5
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1618 pc/h/ln
S 68.0 mph
D = vp / S 23.8 pc/mi/ln
LOS C
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
Analyst SGB Highway/Direction of Travel I-275 WB Agency or Company TEC Engineering, Inc. From/To East of SR-4 Diverge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period PM Build Analysis Year 2037
Project Description I-275 & SR 4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 7420 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Level
DDHV = AADT x K x D veh/h Grade % Length mi
Up/Down %
Calculate Flow Adjustments
fp 1.00 E
R 1.2
ET 1.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.976
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 5
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1618 pc/h/ln
S 68.0 mph
D = vp / S 23.8 pc/mi/ln
LOS C
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
Analyst SGB Highway/Direction of Travel I-275 WB Agency or Company TEC Engineering, Inc. From/To W of SR 4 Diverge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period PM No-Build Analysis Year 2037
Project Description I-275 & SR 4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 5310 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Level
DDHV = AADT x K x D veh/h Grade % Length mi
Up/Down %
Calculate Flow Adjustments
fp 1.00 E
R 1.2
ET 1.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.976
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 4
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1448 pc/h/ln
S 69.3 mph
D = vp / S 20.9 pc/mi/ln
LOS C
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
Analyst SGB Highway/Direction of Travel I-275 WB Agency or Company TEC Engineering, Inc. From/To W of SR 4 Diverge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period PM Build Analysis Year 2037
Project Description I-275 & SR 4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 5310 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Level
DDHV = AADT x K x D veh/h Grade % Length mi
Up/Down %
Calculate Flow Adjustments
fp 1.00 E
R 1.2
ET 1.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.976
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 4
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1448 pc/h/ln
S 69.3 mph
D = vp / S 20.9 pc/mi/ln
LOS C
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
Analyst SGB Highway/Direction of Travel I-275 WB Agency or Company TEC Engineering, Inc. From/To W of NB SR-4 Merge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period PM No-Build Analysis Year 2037
Project Description I-275 & SR 4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 5600 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Level
DDHV = AADT x K x D veh/h Grade % Length mi
Up/Down %
Calculate Flow Adjustments
fp 1.00 E
R 1.2
ET 1.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.976
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 4
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1527 pc/h/ln
S 68.8 mph
D = vp / S 22.2 pc/mi/ln
LOS C
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
Analyst SGB Highway/Direction of Travel I-275 WB Agency or Company TEC Engineering, Inc. From/To W of NB SR-4 Merge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period PM Build Analysis Year 2037
Project Description I-275 & SR 4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 5600 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Level
DDHV = AADT x K x D veh/h Grade % Length mi
Up/Down %
Calculate Flow Adjustments
fp 1.00 E
R 1.2
ET 1.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.976
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 4
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1527 pc/h/ln
S 68.8 mph
D = vp / S 22.2 pc/mi/ln
LOS C
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
Analyst SGB Highway/Direction of Travel I-275 WB Agency or Company TEC Engineering, Inc. From/To W of SB SR-4 Merge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period PM No-Build Constraint Analysis Year 2037
Project Description I-275 & SR 4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 6247 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Grade
DDHV = AADT x K x D veh/h Grade 3.00% Length 1.25mi
Up/Down % 3.00
Calculate Flow Adjustments
fp 1.00 E
R 3.0
ET 2.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.930
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 4
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1786 pc/h/ln
S 66.0 mph
D = vp / S 27.1 pc/mi/ln
LOS D
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
Analyst SGB Highway/Direction of Travel I-275 WB Agency or Company TEC Engineering, Inc. From/To W of SB SR-4 Merge Date Performed 12/1/2015 Jurisdiction ODOT D08 Analysis Time Period PM Build Analysis Year 2037
Project Description I-275 & SR 4 IOS
Oper.(LOS) Des.(N) Planning Data
Flow Inputs
Volume, V 6260 veh/h Peak-Hour Factor, PHF 0.94
AADT veh/day %Trucks and Buses, PT 5
Peak-Hr Prop. of AADT, K %RVs, PR 0
Peak-Hr Direction Prop, D General Terrain: Grade
DDHV = AADT x K x D veh/h Grade 3.00% Length 1.25mi
Up/Down % 3.00
Calculate Flow Adjustments
fp 1.00 E
R 3.0
ET 2.5 fHV = 1/[1+PT(ET - 1) + PR(ER - 1)] 0.930
Speed Inputs Calc Speed Adj and FFS
Lane Width ft
Rt-Side Lat. Clearance ft
Number of Lanes, N 4
Total Ramp Density, TRD ramps/mi
FFS (measured) 70.0 mph
Base free-flow Speed, BFFS
mph
fLW mph
fLC mph
TRD Adjustment mph
FFS 70.0 mph
LOS and Performance Measures Design (N)
Operational (LOS)
vp
= (V or DDHV) / (PHF x N x fHV
x fp)1790 pc/h/ln
S 66.0 mph
D = vp / S 27.1 pc/mi/ln
LOS D
Design (N)
Design LOS
vp = (V or DDHV) / (PHF x N x fHV
x fp)pc/h/ln
S mph
D = vp / S pc/mi/ln
Required Number of Lanes, N
Glossary Factor Location
N - Number of lanes S - Speed
V - Hourly volume D - Density
vp - Flow rate FFS - Free-flow speed
LOS - Level of service BFFS - Base free-flow speed
DDHV - Directional design hour volume
ER - Exhibits 11-10, 11-12 fLW - Exhibit 11-8
ET - Exhibits 11-10, 11-11, 11-13 fLC - Exhibit 11-9
TO: Jennifer Elston, Pavement Engineer, District 8 FROM: Joshua Kieselbach, P.E., Transportation Engineer, Office of Statewide Planning &
Research, Modeling & Forecasting Section SUBJECT: HAM‐4‐10.00, PID 101575 DATE: November 25, 2015 In reply to a request dated September 16, 2015, the request for certified traffic has been completed. Attached are plates with 2017/2037 ADT, AM DHV, and PM DHV as well as a separate plate with truck factors. The K&D factors can be calculated from the plates. If you have any questions, please contact me at [email protected] or (614) 752‐5747. c: M. Byram, OSPR – G. Giaimo, OSPR – File
N
S
TATE OFOH
IO
DE
PA
RT
ME
NT
OF TRANS
PO
RT
TI
NO
A
PLATE 1 OF 4
PID 101575
HAM-4-10.00
4400/5230
4710/4
860
2150/2560
9310/9440
2480/2570
4850/5480
4090/4380
7330/8050
NOVEMBER 25, 2015 NOT TO SCALE
OFFICE OF STATEWIDE PLANNING & RESEARCH
OHIO DEPARTMENT OF TRANSPORTATION
2017/2037 ADT
HAM-4-10.00 PID 101575
14570/16220
18660/20600
12010/12360
26580/28580
22770/24030
11040/11
380
11420/11800
14160/14920
14020/14300
13900/14370
15440/16610
54540/62150
40590/46410
275
4
N
S
TATE OFOH
IO
DE
PA
RT
ME
NT
OF TRANS
PO
RT
TI
NO
A
PLATE 2 OF 4
PID 101575
HAM-4-10.00
1000/1080
5470/6240
4080/4660
NOVEMBER 25, 2015 NOT TO SCALE
OFFICE OF STATEWIDE PLANNING & RESEARCH
OHIO DEPARTMENT OF TRANSPORTATION
2017/2037 AM DHV
HAM-4-10.00 PID 101575
100/120
190/220
1220/126
0
520/54
0
1600/1780
320/340
1920/2120
1280/1330
2880/3110
2170/2250
260/270
740/810
1080/1110
640/640
1380/1450
1160/1180
1340/1380
1410/1480
4
275
N
S
TATE OFOH
IO
DE
PA
RT
ME
NT
OF TRANS
PO
RT
TI
NO
A
PLATE 3 OF 4
PID 101575
HAM-4-10.00
1220/1260
6190/7040
4650/5310
240/290
550/660
890/920
370/38
0
1500/1670
410/440
1910/2110
1330/1370
2830/3040
2240/2390
140/140
350/400
490/540
1210/1250
1570/1660
1590/1640
1350/1390
NOVEMBER 25, 2015 NOT TO SCALE
OFFICE OF STATEWIDE PLANNING & RESEARCH
OHIO DEPARTMENT OF TRANSPORTATION
2017/2037 PM DHV
HAM-4-10.00 PID 101575
1440/1580
4
275
N
S
TATE OFOH
IO
DE
PA
RT
ME
NT
OF TRANS
PO
RT
TI
NO
A
PLATE 4 OF 4
PID 101575
HAM-4-10.00
NOVEMBER 25, 2015 NOT TO SCALE
OFFICE OF STATEWIDE PLANNING & RESEARCH
OHIO DEPARTMENT OF TRANSPORTATION
2017/2037 T24 / AM TD / PM TD
HAM-4-10.00 PID 101575
0.07/0.04/0.04
0.12/0.17/0.05
0.04/0.10/0.03
0.10/0.1
0/0.06
0.03/0
.03/0.
02
0.08/0.05/0.07
0.04/0.04/0.02
0.03/0.03/0.01
0.07/0.12/0.04
0.09/0.05/0.05
4
275
INTER‐OFFICE COMMUNICATION
TO: Jennifer Elston, Pavement Engineer, District 8 FROM: Joshua Kieselbach, P.E., Transportation Engineer, Office of Statewide Planning &
Research, Modeling & Forecasting Section SUBJECT: HAM‐4‐10.00, PID 101575 DATE: December 9, 2015 In reply to a request dated December 4, 2015, the request for certified traffic has been completed. Attached is a plate with 2017/2037 ADT, AM DHV, and PM DHV. Design Designations are in the table below.
SR‐4 Crescentville Rd. Ray Norrish Dr. location north leg south leg east leg west leg
Please note that this intersection was balanced with the previous submission dated November 25, 2015. Due to the access to properties east of SR‐4, the northbound direction of the south leg was not balanced exactly. It is believed that a reasonable difference between this intersection and the intersection of the westbound off‐ramp of I‐275 at SR‐4 would be expected. If you have any questions, please contact me at [email protected] or (614) 752‐5747. c: M. Byram, OSPR – G. Giaimo, OSPR – File