HomeMy WebLinkAboutCOM 1018.002 2006-2008
Public Works' Proposal =
to
Open the
Mamalahoa Bypass
Bruce McClure, Director
Jiro Sumada, Deputy Director
Department of Public Works
Overall Goals
•-Provide alternate route to reduce traffic
congestion in Honalo, Kainaliu and Kealakekua
until Southern portion of Bypass is completed.
?Provide alternate route during road closures
such as vehicle accidents, road or utility
construction, community activities, etc.
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Comm. No. .4416
Ref. To: f FC-
Ref. Date FEB 2 0 Anna 1
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Scope of Problem
?Complaints from Motorists
• Afternoon Peak South Bound Traffic
• During Road or Lane Closures
• Worse during Snowbird Season
?Kainaliu Krawl
• 30 to 45 Minutes Travel Time Delay
• Up to 2-3 Hour Delays for Accidents &
during Construction
• Honalo Junction and Oshima Store
Planned Solutions
?Completed Projects:
• Capt. Cook Intersections Left Turn Pockets
• Kealakekua Two way Left Turn Center Lane
& Left Turn Pockets
• Kainaliu Additional Parking Lot & Reduced
Parking Fronting Oshima Store
• Restricted Right Turn at Honalo Junction
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Planned Solutions
?Project Starting Soon:
• Kainaliu Additional Parking Lot at Aloha
Theater & Jug Handle Turnarounds '
• Kainaliu On Street Parking Restriction during
PM Peak (South Bound Traffic)
Completed Portion of
Bypass Available for Use
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Mamalahoa Bypass Road
Traffic Study (June 2006)
d• Existing Traffic Operations on Mamalahoa Hwy (S. Kona
• Average Daily Traffic thru Kainaliu:
0 Northbound: 9,963 ADT 2,475 vehicles during peak hrs
0 Southbound: 10,207 ADT 2,025 vehicles during peak hrs
• Level of Service on Kuakini near Honalo: "D" for AM & PM r
• Volume-to-Capacity Ratio: .52 for AM & .44 for PM
? After Opening Bypass
• Amount of Traffic Transferred to Bypass: 33%
• Level of Service on Kuakini near Honalo: "C" for AM & PM
• Volume-to-Capacity Ratio:
0 One-Way Bypass: .41 for AM & .35 for PM
0 Two-Way Bypass: .34 for AM & .29 for PM
Mamalahoa Bypass Road
Traffic Study (June 2006)
With Percent
Traffic Analysis Criterion Existing Bypass Improvement
Level of Service
Volume-To-Capacity
?One-Way Bypass at AM .52 .41 21%
4-Two-Way Bypass at AM .52 .34 35%
?One-Way Bypass at PM .44 .35 20%
-.•Two-Way Bypass at PM .44 .29 34%
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Bypass Options Considered
1 Restricted One-Way North Only 6:30 to 8:30 AM (Mon - Fri)
2 Restricted One-Way South Only 3:30 to 6:30 PM (Mon - Fri)
3 Restricted Two-Ways North and South
6:30 AM to 6:30 PM (Mon - Fri)
4 Unrestricted Two Ways North and South
24 hours - 7 Days per Week
5 Remain Closed to General Public
Open for Emergency Use Only
(Hoku/i'a already allows use)
DPW
Proposed Use of Bypass
?Open Completed Northern Portion of Bypass
and Lower Haleki'i Street
4-South-bound Traffic Only 3:30 to 6:30 PM,
Monday through Friday, Except Holidays '
4-Trial Basis Only (with monitoring)
-.**Start Test After Short-term Mitigation
Measures are Completed
41.'-Minor Adjustments During Test to Develop
Optimum Mix
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Community Concerns
?Keauhou Community (Ali'i Hwy):
*Increase in Traffic on Ali i Hwy = Unsafe to
Enter AIM Highway from Condo's & Golf
Course Driveways, and also Kaleiopapa
Road
*Speeding on Ali'i Highway
• Limited Sight Distance
*Adequate Infrastructure Not in Place
BEFORE Opening Bypass.
Community Concerns
?Haleki'i Community:
*Increase in Traffic on Haleki i Street =
Unsafe for Haleki i Residents Backing
Out from Short Driveways
*Cars Stacking Up at Haleki'i Traffic Signal
*Speeding Going Up and Down Haleki'i Street
• Dangerous for School Bus Children Off
Loaded Near Mamao Street Intersection
• Noise from Trucks Using Jake Brakes
• No Parking at Kona Scenic Park
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Short-Term (6-8 Months)
?AIM Hwy Mitigation Measures:
• 3-Way Stop at Kaleiopapa, Royal Poinciana, and
Lunapule
• Two-Way Left Turn Lanes on Ali'i Highway
• Special Duty Police Officer at Kaleiopapa Intersection
during 3:30 to 6:30 PM Test
• Upgrade Traffic Signal at Kuakini - Kamehameha III -
Walua Road Intersection
• Adjust Signal Timing at Ali l Hwy - Kamehameha III
Intersection
• Construct 8 foot Bike & Pedestrian Path on Makai-side
of Alit Highway
All l Hwy Mitigation Measures
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Short-Term (6-8 Months)
?Haleki'i Street Mitigation Measures:
• Speed Humps Before Mamao and Muli Streets
• Construct Raised or Textured Intersection with Mini-
Traffic Circle at Mamao and Muli Streets
• Install 3-D Speed Humps between Mamao and Muli St.
• Install Smart Signs at Steep Sections of Halekii
• Mid-Block Crosswalk Near Courthouse
• Lengthen Right and Left Turn Storage Lanes at Halekii
Signalized Intersection
• Restrict Truck Traffic through Residential Section of
Haleki'i Street
Halekii St. Mitigation Measures
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Long-Term (3-S Years)
?Ali'i Hwy Mitigation Measures: ¦
• Install Permanent Traffic Signals at Kaleiopapa, Royal
Poinciana, Lunapule and Hualalai
• Construct Community (Bike & Ped) Path Mauka of
Ali'i Highway •
• Resolve Bike, Pedestrian and Right-of-Way
Encroachments on Ali'i Drive (Kailua to Keauhou)
• Install Smart Signs along Ali'i Drive (Kailua to Keauhou)
?Haleki'i Street Mitigation Measures:
• Upgrade Traffic Signal at Haleki'i St & Mamalahoa Hwy
Things to Do
?Refine Short & Long Term Costs and Timelines
?Develop Monitoring & Test Evaluation Criteria
• Identify Test Evaluation Criteria & Monitoring Plan
• Recruit Community Members for Monitoring •
?Detail Operational Traffic Control Plan for Test
-Schedule Work for Short Term Mitigation
Measures t
?Prepare CIP Documents and Secure Funding
for Long Term Mitigation Projects
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