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HAMPTON ROADS REGIONAL NETWORK OPERATIONAL STUDY – PRELIMINARY RESULTS
Chris Hall, P.E., District Engineer
HRTPO – Board Presentation
May 16, 2019
2
Task/Scope Conduct operational analysis of I-64 2025 Baseline Network (Scenario 1: Hampton to Chesapeake) and evaluate two changes to the base line (Scenario 2)
Purpose - Understand potential impacts of increased capacity and
identify potential future operational challenges across 2025 baseline network
- Evaluate baseline system performance (general purpose travel times and speeds)
- Provide performance comparison of scenario 2 options
- Provide best information possible to regional leadership to inform future network investment decisions
2 Virginia Department of Transportation
HOV Lanes Jefferson to Mercury
Segment 3 HRBT Bi-directional managed lanes
Segment 1 I-64 Express Lanes Reversible Managed Lanes
Segment 2a HOV Lanes
Segment 2b HRB Bi-directional managed lanes
Baseline Network 2025
Scenario 2 Modification Move managed lane EB ingress further West
Scenario 2 Modification Convert Segment 2a from HOV to HOT 2
Methodology
3 Virginia Department of Transportation
HRTPO Model
• Travel Demand Model (TDM) • Regional Conformity Model
2016 Volumes
• Balanced Volumes • Added Missing Segments
2025 Volumes
• Growth Rate from TDM • Balanced Volumes
VISSIM 2025
• Traffic Micro-Simulation • Scenario 1 & Scenario 2
VISSIM TDM
Volume Balancing
DRAFT Operational Results
• Network HOT Spot Locations: 1. 2025 AM I-64 EB at Segment 3 (HRBT) 2. 2025 PM I-64 EB at Segment 3 (HRBT) 3. 2025 AM I-64 EB at Segment 1 (Reversible HOT) 4. 2025 PM I-64 EB at Segment 2 (High Rise Bridge) 5. 2025 PM I-64 WB at Segment 3 (HRBT)
4 Virginia Department of Transportation
HOV Lanes Jefferson to Mercury
Segment 3 HRBT Bi-directional managed lanes
Segment 1 I-64 Express Lanes Reversible Managed Lanes
Segment 2a HOV Lanes
Segment 2b HRB Bi-directional managed lanes
Baseline Network 2025
Scenario 2 Modification Move managed lane EB ingress further West
Scenario 2 Modification Convert Segment 2a from HOV to HOT 2
2 1a
1b
5
3
4
DRAFT Speed Comparison Graphics
5 Virginia Department of Transportation
1. 2025 AM I-64 Eastbound a. Between Mallory St and Settlers Landing Rd b. Between I-564 and W Bay Ave
6:00
AM
6:30
AM
7:00
AM
7:30
AM
8:00
AM
8:30
AM
Scenario 1 General Purpose Lanes
Dir
ectio
n of
Tra
vel
LaSalle Ave
Settlers Landing Rd
Mallory St
4th View St
W Bay Ave
I-564
HRBT
1a
1b
DRAFT Speed Comparison Graphics
6 Virginia Department of Transportation
2. 2025 PM I-64 Eastbound • Between Mallory St
and Settlers Landing Rd
2
DRAFT Speed Comparison Graphics
7 Virginia Department of Transportation
6:0
0 A
M
6:3
0 A
M
7:0
0 A
M
7:3
0 A
M
8:0
0 A
M
8:3
0 A
M
6:0
0 A
M
6:3
0 A
M
7:0
0 A
M
7:3
0 A
M
8:0
0 A
M
8:3
0 A
M
Scenario 1 General Purpose Lanes Scenario 2 General Purpose Lanes
Dir
ec
tio
n o
f T
rav
el
Tidewater Dr
Chesapeake Blvd
Norview Ave
N Military Hwy
Northampton Blvd
I-264
3. 2025 AM I-64 Eastbound • At merge from
Northhampton Blvd ramps
3
DRAFT Speed Comparison Graphics
8 Virginia Department of Transportation
3:00
PM
3:30
PM
4:00
PM
4:30
PM
5:00
PM
5:30
PM
3:00
PM
3:30
PM
4:00
PM
4:30
PM
5:00
PM
5:30
PM
Scenario 1 General Purpose Lanes Scenario 2 General Purpose Lanes
I -264
Indian River Rd
Greenbrier Pkwy
N Battlefield Blvd
I-464
Dir
ect
ion
of T
rave
l
4. 2025 PM I-64 Eastbound • From I-64 EB to I-464 SB
loop ramp
4
DRAFT Speed Comparison Graphics
9 Virginia Department of Transportation
5. 2025 PM I-64 Westbound • From HRBT Tunnel Entrance
5
DRAFT Travel Time Comparison Graphics
10 Virginia Department of Transportation
2025 PM I-64 Eastbound Travel Times
∆=33.3 min
∆=34.1 min
∆=40.4 min
Key Takeaways
• Further study required to clarify cause and develop solutions to mitigate congestion at 5 identified congestion areas
• Initial analysis indicates scenario 2 performs better than baseline condition
• Managed lane options provide reliable trip alternative throughout network
• This is a first step in providing regional leadership the express lanes network analysis to inform future planning and investment decisions
11 Virginia Department of Transportation
Next Steps • Evaluate operational “hot-spots” to determine causes of
congestion • Receive input from stakeholders and refine study models to
generate final results • Document findings in final technical report • Identify / quantify potential issues or areas that may become
increasingly challenging after 2025 • Determine areas for more detailed operational study that would
identify potential solutions • HRTAC Briefing – June 20 • HRTPO Follow-up Briefing – July 18
12 Virginia Department of Transportation
Questions
Hampton Roads Bridge Tunnel (Segment 3 – HOT)
15
• Projected Performance:
• HOT Lanes Operate Effectively at Opening, Throughput Improvement
• HOT Lanes – Entry/Exit at Project East and West Ends • Part Time HOT Shoulder (Capacity Increase)
• Roadway Geometric Specificities Impact Throughput,
HOT Lanes Improve Reliability and Performance
I-64 Southside and High Rise Bridge (Segment 2A)
16
• Currently designed to operate as a separate HOT facility
• HOT Lanes – Entry/Exit at Project East and West Ends
• Managed Shoulder from Rt. 17 to Great Bridge Blvd
• January 2017 Operational Traffic Analysis
• 30% of Total Traffic Volume Projected to Use HOT Lanes at Peak Periods
• Initial GP Lane Time Savings: EB (6.9 Min), WB (4.0 Min)
PROFILE 1
Managed Shoulder (Where Applicable
Managed Shoulder (Where Applicable
PROFILE 2
PROFILE 2 PROFILE 1