LANGANKES LANDING Traffic Impact Analysis Summary Craig D. Yannes, - PowerPoint PPT Presentation

1 LANGANKE’S 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 – 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) 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 • 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

4 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

5 TRIP GENERATION METHODOLOGY • 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 10 th Edition Online Database that Compiles Traffic Count Data from Similar Uses

6 TRIP GENERATION

7 CAPACITY ANALYSIS RESULTS - LOS

8 CAPACITY ANALYSIS RESULTS - QUEUE

9 CONCLUSIONS • 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 operations to existing conditions

10 ADDITIONAL SLIDES

11 STUDY AREA - EXISTING CONDITIONS N APRIL 2016 MAY 2019

12 STUDY AREA - EXISTING CONDITIONS N BRIDGEPORT AVE.

13 BRIDGEPORT AVENUE LOOKING NORTHWEST

14 BRIDGEPORT AVENUE LOOKING SOUTHEAST

15 HUNTINGTON STREET LOOKING NORTHWEST

16 HUNTINGTON STREET LOOKING SOUTHEAST

17 SITE PLAN

18 Phase 1 SIGNAL RETIMING Bridgeport Avenue at Huntington Road/Street & Shelton Road Phase 1 Phase 2 Phase 4 Bridgeport Shelton Huntington Avenue Road Road/Street Phase 2 WB EB NB & SB Existing 20 seconds 25 seconds 30 seconds AM & PM Background AM & PM 25 seconds 21 seconds 29 seconds (Proposed (+5 seconds) (-4 seconds) (-1 second) Changes from Phase 4 Fountain Square Project) Proposed AM Only 20 seconds 21 seconds 34 seconds (PM to remain at (No Change) (-4 seconds) (+4 seconds) Background Timing)

19 CAPACITY ANALYSES Signalized Unsignalized Level of Intersection Intersection Service (Average Delay in (Average Delay in seconds per Vehicle) seconds per Vehicle)  10  10 A >10 and  20 >10 and  15 B >20 and  35 >15 and  25 C >35 and  55 >25 and  35 D >55 and  80 >35 and  50 E F >80 >50 Source: Highway Capacity Manual, 6 th Edition

20 SIGNAL PLAN

21 2020 EXISTING TRAFFIC VOLUMES SOURCE: TURNING MOVEMENT COUNTS – JANUARY 15, 2020

22 2021 BACKGROUND TRAFFIC VOLUMES SOURCE: 2020 EXISTING + 1.2% ANNUAL GROWTH + SITE TRAFFIC VOLUMES FROM FOUNDTAIN SQUARE, 899 BRIDGEPORT AVE, & SHELTER RIDGE PROJECTS

23 TRAFFIC DISTRIBUTION SOURCE: EXISTING TRAVEL PATTERNS AND ROADWAY LAYOUT

24 SITE GENERATED TRAFFIC SOURCE: TRIP GENERATION x TRAFFIC DISTRIBUTION

25 PASS-BY TRAFFIC

26 2021 COMBINED TRAFFIC VOLUMES SOURCE: 2021 BACKGROUND + SITE TRAFFIC + PASS-BY TRAFFIC

27 COLLISION HISTORY

28 COLLISION HISTORY – BRIDGEPORT AVENUE AT HUNTINGTON STREET

29 COLLISION HISTORY – BRIDGEPORT AVENUE AT SOUTH SITE DRIVEWAY

30 COLLISION HISTORY – HUNTINGTON STREET AT ISINGLASS ROAD AND NORTH SITE DRIVEWAY

31 INTERSECTION SIGHT DISTANCE • 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 and collision data review shows no significant crash patterns