proposed 133 west union street residential development - Cloudinary
GREEN INTERNATIONAL AFFILIATES, INC. CIVIL AND STRUCTURAL ENGINEERS
Traffic Impact and Access Study
PROPOSED 133 WEST UNION STREET RESIDENTIAL DEVELOPMENT
January 13, 2015
GREEN INTERNATIONAL AFFILIATES, INC.
• • • •
Understand the abutting street network Prepare an estimate of new traffic Determine its relative impact Develop access and off-site mitigation plans as appropriate
In summary, provide a reasonable expectation of the project’s characteristics and its incremental impact on the abutting roadway system.
GREEN INTERNATIONAL AFFILIATES, INC.
• Data Collection – – – –
Automated Traffic Recorder (ATR) Turning Movement Counts (TMC) Crash data Physical road information
• Develop Traffic Forecasts – Focus on Year 2021 (7 year) – Develop No-Build volumes (background growth) – Estimate site traffic (generation and distribution)
• Analysis – Level of Service – Sight distances
• Conclusions/Recommendations
GREEN INTERNATIONAL AFFILIATES, INC.
• On Route 135 – a major route • ~1,200’ south of Ashland Middle School • Near MBTA commuter rail station • I-495 is located approx. 4.5 miles west of project
GREEN INTERNATIONAL AFFILIATES, INC.
• Route 135 (West Union Street) – – – – – – –
State numbered, locally controlled east-west highway Two-way, two lane roadway Additional turn lanes at key intersections Approximately 28 feet wide Posted speed limit is 35 mph Was repaved from Stone Avenue to Main Street in 2013 Sidewalk present along west side of road east of Indian Spring Road; along both sides east of Stone Avenue – Mix of residential, commercial and wooded setting
• Crash rates are below District 3 averages at all study intersections
GREEN INTERNATIONAL AFFILIATES, INC.
Route 135 westbound at Edgewood Drive
Route 135 eastbound north of MBTA access
GREEN INTERNATIONAL AFFILIATES, INC.
Route 135 westbound towards Framingham
Route 135 eastbound towards Olive Street
GREEN INTERNATIONAL AFFILIATES, INC.
Route 135 eastbound approaching site
Route 135, signal access at the MBTA drive
GREEN INTERNATIONAL AFFILIATES, INC.
Route 135 eastbound at Summer Street
Route 135, westbound approaching Middle School
GREEN INTERNATIONAL AFFILIATES, INC.
Route 135 east of Chestnut Street
Route 135 at Chestnut Street
GREEN INTERNATIONAL AFFILIATES, INC.
Location
East of West Union Street Frankland
ADT
AM Peak Hour
% of ADT
PM Peak Hour
% of ADT
14,730
1,160
7.9
1,280
8.7
Union Street
East of Summer
12,790
1,040
8.1
960
7.5
Summer St
South of Linden
3,370
340
10.1
290
8.6
GREEN INTERNATIONAL AFFILIATES, INC.
•
140 apartment units
•
Four major buildings six in total
•
One site drive along West Union Street
•
231 parking spaces
Plan dated 2/21/2014
GREEN INTERNATIONAL AFFILIATES, INC.
ENTERING
EXITING
TOTAL
WEEKDAY
486
486
972
AM PEAK HOUR
14
58
72
PM PEAK HOUR
62
33
95
LUC 220 (ITE Trip Generation, 9th Edition, 2012)
GREEN INTERNATIONAL AFFILIATES, INC.
25% 2%
20% 10% Middle School
2% PROJECT SITE 3% 30% 3%
5%
GREEN INTERNATIONAL AFFILIATES, INC.
• Projected volumes to 2021 • Took into account background growth including Legacy Farms – Legacy Farms Phase 1 has been constructed and occupied since 2013
• Completed No‐Build, Build and Build Plus condition for analysis • Examined level of service and sight distances
GREEN INTERNATIONAL AFFILIATES, INC.
• • • •
Minimal changes in peak hour volumes East of MBTA access: 2.2‐2.7% East of Summer Street: 2.2‐2.4% West of Frankland Road: 1.8‐2.1%
GREEN INTERNATIONAL AFFILIATES, INC.
• Minimal or no changes in intersection operations between the No-Build and Build conditions. • Left turn exit movements at unsignalized locations experience relatively long delays during peak hours currently and this would continue in future regardless of project. • Overall delay increases at key signals are relatively small (1-6 sec/veh). • Residents exiting site will experience long peak hour delay similar to other unsignalized drives along route while entering traffic will experience short delays.
GREEN INTERNATIONAL AFFILIATES, INC.
• Reviewed sight distances relative to proposed site drive • Used the DOT practices and guidelines • Minimum criteria exceeded for safe stopping
GREEN INTERNATIONAL AFFILIATES, INC.
• Providing 231 spaces or 1.65 spaces per unit. • ITE based average peak demand: 1.23 spaces per unit
GREEN INTERNATIONAL AFFILIATES, INC.
• Major deliveries to site will be via Route 135 with direction depending on the source of material.
GREEN INTERNATIONAL AFFILIATES, INC.
• Site traffic is able to enter and exit the site safely • Small increases in traffic on the abutting roadway network • Minimal or no substantive changes in traffic operations • Route 135 is able to accommodate the additional volumes • All sight distances exceed minimum criteria • Parking supply is more than adequate to meet the expected demands
GREEN INTERNATIONAL AFFILIATES, INC.
• Any landscaping and signage at site drive should be low lying and set back from Route 135 • Site drive should be STOP controlled with appropriate signage and markings. • Provide a two lane approach on the site site and and install appropriate pavement markings. • Provide sidewalk along Route 135 on north side between site and existing end of sidewalk near the Middle School (within public right-of-way) • Trim or selective removal of vegetation within the right-of-way along Route 135 in the vicinity of the site including west of Frankland Road.
GREEN INTERNATIONAL AFFILIATES, INC.
• Install advanced intersection warning sign and distance plaque approximately 400 feet west of the proposed driveway • Examine the possible signal timing changes that could be considered at the intersection of Route 135 with Summer Street. • Independent of this development project, it may be prudent of the town to monitor Route 135 eastbound speeds west of Frankland Road and encourage a reduction.
GREEN INTERNATIONAL AFFILIATES, INC.
• Study was reviewed by Town’s peer review consultant, FST. • Review found we followed standard engineering guidelines. • Review found our traffic volume network development was sound and acceptable. • Review concurred with our site traffic forecasts. • Reviewed concurred with our proposed recommended actions and requested two additional actions: – Examine potential signal timing adjustments at the Union/Chestnut/Homer intersection – Monitor site drive to determine if future signal becomes warranted
Traffic Impact and Access Study
PROPOSED 133 WEST UNION STREET RESIDENTIAL DEVELOPMENT
January 13, 2015
GREEN INTERNATIONAL AFFILIATES, INC.
• • • •
Understand the abutting street network Prepare an estimate of new traffic Determine its relative impact Develop access and off-site mitigation plans as appropriate
In summary, provide a reasonable expectation of the project’s characteristics and its incremental impact on the abutting roadway system.
GREEN INTERNATIONAL AFFILIATES, INC.
• Data Collection – – – –
Automated Traffic Recorder (ATR) Turning Movement Counts (TMC) Crash data Physical road information
• Develop Traffic Forecasts – Focus on Year 2021 (7 year) – Develop No-Build volumes (background growth) – Estimate site traffic (generation and distribution)
• Analysis – Level of Service – Sight distances
• Conclusions/Recommendations
GREEN INTERNATIONAL AFFILIATES, INC.
• On Route 135 – a major route • ~1,200’ south of Ashland Middle School • Near MBTA commuter rail station • I-495 is located approx. 4.5 miles west of project
GREEN INTERNATIONAL AFFILIATES, INC.
• Route 135 (West Union Street) – – – – – – –
State numbered, locally controlled east-west highway Two-way, two lane roadway Additional turn lanes at key intersections Approximately 28 feet wide Posted speed limit is 35 mph Was repaved from Stone Avenue to Main Street in 2013 Sidewalk present along west side of road east of Indian Spring Road; along both sides east of Stone Avenue – Mix of residential, commercial and wooded setting
• Crash rates are below District 3 averages at all study intersections
GREEN INTERNATIONAL AFFILIATES, INC.
Route 135 westbound at Edgewood Drive
Route 135 eastbound north of MBTA access
GREEN INTERNATIONAL AFFILIATES, INC.
Route 135 westbound towards Framingham
Route 135 eastbound towards Olive Street
GREEN INTERNATIONAL AFFILIATES, INC.
Route 135 eastbound approaching site
Route 135, signal access at the MBTA drive
GREEN INTERNATIONAL AFFILIATES, INC.
Route 135 eastbound at Summer Street
Route 135, westbound approaching Middle School
GREEN INTERNATIONAL AFFILIATES, INC.
Route 135 east of Chestnut Street
Route 135 at Chestnut Street
GREEN INTERNATIONAL AFFILIATES, INC.
Location
East of West Union Street Frankland
ADT
AM Peak Hour
% of ADT
PM Peak Hour
% of ADT
14,730
1,160
7.9
1,280
8.7
Union Street
East of Summer
12,790
1,040
8.1
960
7.5
Summer St
South of Linden
3,370
340
10.1
290
8.6
GREEN INTERNATIONAL AFFILIATES, INC.
•
140 apartment units
•
Four major buildings six in total
•
One site drive along West Union Street
•
231 parking spaces
Plan dated 2/21/2014
GREEN INTERNATIONAL AFFILIATES, INC.
ENTERING
EXITING
TOTAL
WEEKDAY
486
486
972
AM PEAK HOUR
14
58
72
PM PEAK HOUR
62
33
95
LUC 220 (ITE Trip Generation, 9th Edition, 2012)
GREEN INTERNATIONAL AFFILIATES, INC.
25% 2%
20% 10% Middle School
2% PROJECT SITE 3% 30% 3%
5%
GREEN INTERNATIONAL AFFILIATES, INC.
• Projected volumes to 2021 • Took into account background growth including Legacy Farms – Legacy Farms Phase 1 has been constructed and occupied since 2013
• Completed No‐Build, Build and Build Plus condition for analysis • Examined level of service and sight distances
GREEN INTERNATIONAL AFFILIATES, INC.
• • • •
Minimal changes in peak hour volumes East of MBTA access: 2.2‐2.7% East of Summer Street: 2.2‐2.4% West of Frankland Road: 1.8‐2.1%
GREEN INTERNATIONAL AFFILIATES, INC.
• Minimal or no changes in intersection operations between the No-Build and Build conditions. • Left turn exit movements at unsignalized locations experience relatively long delays during peak hours currently and this would continue in future regardless of project. • Overall delay increases at key signals are relatively small (1-6 sec/veh). • Residents exiting site will experience long peak hour delay similar to other unsignalized drives along route while entering traffic will experience short delays.
GREEN INTERNATIONAL AFFILIATES, INC.
• Reviewed sight distances relative to proposed site drive • Used the DOT practices and guidelines • Minimum criteria exceeded for safe stopping
GREEN INTERNATIONAL AFFILIATES, INC.
• Providing 231 spaces or 1.65 spaces per unit. • ITE based average peak demand: 1.23 spaces per unit
GREEN INTERNATIONAL AFFILIATES, INC.
• Major deliveries to site will be via Route 135 with direction depending on the source of material.
GREEN INTERNATIONAL AFFILIATES, INC.
• Site traffic is able to enter and exit the site safely • Small increases in traffic on the abutting roadway network • Minimal or no substantive changes in traffic operations • Route 135 is able to accommodate the additional volumes • All sight distances exceed minimum criteria • Parking supply is more than adequate to meet the expected demands
GREEN INTERNATIONAL AFFILIATES, INC.
• Any landscaping and signage at site drive should be low lying and set back from Route 135 • Site drive should be STOP controlled with appropriate signage and markings. • Provide a two lane approach on the site site and and install appropriate pavement markings. • Provide sidewalk along Route 135 on north side between site and existing end of sidewalk near the Middle School (within public right-of-way) • Trim or selective removal of vegetation within the right-of-way along Route 135 in the vicinity of the site including west of Frankland Road.
GREEN INTERNATIONAL AFFILIATES, INC.
• Install advanced intersection warning sign and distance plaque approximately 400 feet west of the proposed driveway • Examine the possible signal timing changes that could be considered at the intersection of Route 135 with Summer Street. • Independent of this development project, it may be prudent of the town to monitor Route 135 eastbound speeds west of Frankland Road and encourage a reduction.
GREEN INTERNATIONAL AFFILIATES, INC.
• Study was reviewed by Town’s peer review consultant, FST. • Review found we followed standard engineering guidelines. • Review found our traffic volume network development was sound and acceptable. • Review concurred with our site traffic forecasts. • Reviewed concurred with our proposed recommended actions and requested two additional actions: – Examine potential signal timing adjustments at the Union/Chestnut/Homer intersection – Monitor site drive to determine if future signal becomes warranted
