hampton roads regional network operational study ... 12_presentation i-64 re… · hampton roads...

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


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)


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


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



2. 2025 PM I-64 Eastbound • Between Mallory St

and Settlers Landing Rd

2



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



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



5. 2025 PM I-64 Westbound • From HRBT Tunnel Entrance

5

DRAFT Travel Time Comparison Graphics


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


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


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

hampton roads regional network operational study ... 12_presentation i-64 re… · hampton roads...

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