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STUDY AREA - EXISTING CONDITIONS
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LANGANKES LANDING Traffic Impact Analysis Summary Craig D. Yannes, - - PowerPoint PPT Presentation
LANGANKES LANDING Traffic Impact Analysis Summary Craig D. Yannes, - - PowerPoint PPT Presentation
1 LANGANKES LANDING Traffic Impact Analysis Summary Craig D. Yannes, PE, PTOE, RSP1, Project Manager 2 STUDY AREA - EXISTING CONDITIONS N APRIL 2016 MAY 2019 3 EXISTING OPERATIONS & OBSERVATIONS Observations during peak periods
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- Observations during peak periods – T&B Office located at
1000 Bridgeport Avenue – Study Area on Employees Commutes
- Turning Movement Counts (7:00-9:00 AM & 4:00-6:00 PM)
AM Peak Hour: 7:30 AM to 8:30 AM or 7:45 to 8:45 AM PM Peak Hour: 4:30 AM to 5:30 PM or 4:45 to 5:45 PM
- Hourly Traffic Volumes Bridgeport Ave & Huntington Street
(72 Hours)
- Peak Hour Observations
Moderate Delays & Queues at the following: Huntington Rd. NB in AM – Traffic from Rt. 8 Huntington St. SB in AM – Traffic to Rt. 8 Bridgeport Avenue for WB Left Turns in PM – Traffic to Rt. 8 No Significant Delays & Queues at Stop Controlled Intersections
EXISTING OPERATIONS & OBSERVATIONS
Location Average Daily Traffic Travel Speed (MPH) Bridgeport Avenue 13,620 vehicles 43 EB; 41 WB Huntington Street 10,605 vehicles 42 NB; 44 SB
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PROPOSED CONDITIONS
- 4,400 SF Convenience
Market
- 10 Fueling Position
Station
- 4,200 SF Retail
- 2,000 SF Office
- 3 Full Access Driveways
– Stop Controlled on Driveway Approach 4
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- Convenience Market & Gas
Station
Counts at Cumberland Farms on Route 25 in Monroe 50% pass-by trips – account for visits to the site from existing traffic stream – not new trips to the study area
- Retail/Office
ITE Trip Generation Manual 10th Edition Online Database that Compiles Traffic Count Data from Similar Uses
TRIP GENERATION METHODOLOGY
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TRIP GENERATION
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CAPACITY ANALYSIS RESULTS - LOS
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CAPACITY ANALYSIS RESULTS - QUEUE
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- 4,400 SF Convenience Market; 10 Fueling Position Station;
2,100 SF Retail; 1,000 SF Office
- 3 Full Access Driveways: 2 on Bridgeport Avenue, 1 on
Huntington Street – Stop Control on Driveways
- New Site Generated Traffic based upon Counts & ITE Data
AM Peak: 130 new trips PM Peak: 138 new trips
- Pass-By Traffic Analyzed at 50% Accounting for Site Trips
from Existing Traffic Volume
- Minimal Operational Impact of Additional Traffic – All
approaches operate at LOS D or better except driveways which have space to store accommodate the expected vehicle queues
- Recommend signal timing optimization in AM to improve
- perations to existing conditions
CONCLUSIONS
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ADDITIONAL SLIDES
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STUDY AREA - EXISTING CONDITIONS
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APRIL 2016 MAY 2019
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STUDY AREA - EXISTING CONDITIONS
BRIDGEPORT AVE.
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BRIDGEPORT AVENUE LOOKING NORTHWEST
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BRIDGEPORT AVENUE LOOKING SOUTHEAST
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HUNTINGTON STREET LOOKING NORTHWEST
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HUNTINGTON STREET LOOKING SOUTHEAST
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SITE PLAN
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SIGNAL RETIMING
Phase 1 Bridgeport Avenue WB Phase 2 Shelton Road EB Phase 4 Huntington Road/Street NB & SB Existing AM & PM 20 seconds 25 seconds 30 seconds Background AM & PM
(Proposed Changes from Fountain Square Project)
25 seconds (+5 seconds) 21 seconds (-4 seconds) 29 seconds (-1 second) Proposed AM Only
(PM to remain at Background Timing)
20 seconds (No Change) 21 seconds (-4 seconds) 34 seconds (+4 seconds)
Bridgeport Avenue at Huntington Road/Street & Shelton Road
Phase 1 Phase 2 Phase 4
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CAPACITY ANALYSES
Level of Service Signalized Intersection (Average Delay in seconds per Vehicle) Unsignalized Intersection (Average Delay in seconds per Vehicle) A 10 10 B >10 and 20 >10 and 15 C >20 and 35 >15 and 25 D >35 and 55 >25 and 35 E >55 and 80 >35 and 50 F >80 >50
Source: Highway Capacity Manual, 6th Edition
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SIGNAL PLAN
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2020 EXISTING TRAFFIC VOLUMES
SOURCE: TURNING MOVEMENT COUNTS – JANUARY 15, 2020
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2021 BACKGROUND TRAFFIC VOLUMES
SOURCE: 2020 EXISTING + 1.2% ANNUAL GROWTH + SITE TRAFFIC VOLUMES FROM FOUNDTAIN SQUARE, 899 BRIDGEPORT AVE, & SHELTER RIDGE PROJECTS
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TRAFFIC DISTRIBUTION
SOURCE: EXISTING TRAVEL PATTERNS AND ROADWAY LAYOUT
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SITE GENERATED TRAFFIC
SOURCE: TRIP GENERATION x TRAFFIC DISTRIBUTION
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PASS-BY TRAFFIC
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2021 COMBINED TRAFFIC VOLUMES
SOURCE: 2021 BACKGROUND + SITE TRAFFIC + PASS-BY TRAFFIC
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COLLISION HISTORY
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COLLISION HISTORY – BRIDGEPORT AVENUE AT HUNTINGTON STREET
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COLLISION HISTORY – BRIDGEPORT AVENUE AT SOUTH SITE DRIVEWAY
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COLLISION HISTORY – HUNTINGTON STREET AT ISINGLASS ROAD AND NORTH SITE DRIVEWAY
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- Sight Distances from Bridgeport Avenue
Driveways over 500’ in each direction
- Sight Distances from Huntington Street Driveway:
Over 500’ looking right 350’ looking left limited by mature maple trees
- Vegetation along site frontage should be regularly
maintained to maximize sight distances
- Existing conditions in operation for many years