HomeMy WebLinkAbout09/18/2020 - TEC Traffic Peer Review #3 - - 1416 Daaoeil ,IRoad
Andlover, MA 011810
9718.794.1792
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Create J J Innovate
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The Engineering Corp
Ms. Monica Gregoire September 18, 2020
Staff Planner
Planning Department
Town of North Andover
120 Main Street
North Andover, MA 01845
Ref.: T0758.10
Re: Peer Review#3 - Traffic Review (TIAS Addendum)
1600 Osgood Street
Dear Ms. Gregoire:
On behalf of the Town of North Andover, TEC, Inc. (TEC) reviewed addendum documents as part
of the transportation engineering peer review for the proposed e-commerce fulfillment
development located at #1600 Osgood Street in North Andover, Massachusetts. Langan
Engineering & Environmental Services, Inc. submitted the following revision documents on behalf
of 1600 Osgood Street, LLC (the"Applicant"),which TEC reviewed for conformance with the Town
of North Andover Zoning Bylaws and generally accepted industry standards:
• Addendum to Traffic Impact and Access Study —1600 Osgood Street — North
Andover, Massachusetts; prepared by Langan Engineering & Environmental
Services, Inc., September 10, 2020.
Upon review of the documents and plans, TEC has compiled the following comments for the
Board's consideration:
Traffic Impact and Access Study
1. TEC has reviewed the Addendum for general conformance with the Town of North Andover
Zoning Bylaw and consistency with the previous TIAS as submitted by the project. Upon
review, TEC finds that the TIAS addendum and additional scope work requested by the
Massachusetts Department of Transportation (MassDOT) overall do not significantly alter the
results as presented in the original TIAS.
2. Based on requests from MassDOT, who has jurisdiction over Osgood Street, the Applicant
will provide the following additional improvements within the public right-of-way as described
in their MassDOT Mitigation Letter (unless retracted by MassDOT):
a. Convert both the two site unsignalized driveways to right-in/right-out only with a
channelized island to reinforce the turn restrictions;
b. Provide a MBTA standard bus bay and bus shelter on the west side of Osgood Street;
[does not affect traffic operations analysis]
c. Construct a shared-use-path extending from the North Signalized Driveway to the
South Signalized Driveway with connection signage and striping; [does not affect
traffic operations analysis]
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1600 Osgood Street - North Andover, MA 'TEC;
Peer Review#3 —Traffic Review (TIAS Addendum) TheEngineering C r
September 18, 2020
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d. Resurface Osgood Street within the area of widening; [does not affect traffic operations
analysis]
e. Provide a 250-foot northbound left-turn lane at the North Signalized Driveway; and
f. Provide a 150-foot southbound left-turn lane at the South Signalized Driveway to
oppose the originally proposed northbound left-turn lane;
3. The capacity and queue analysis analyze the signalized intersections using the Synchro
Percentile Delay methodology instead of the industry standard Highway Capacity Manual
(HCM) 2010 or 6t" Edition methodology. This was acceptable by TEC within the original
review.
4. Although the overall delay and volume-to-capacity (V/C) ratio are generally unchanged from
the results in the original TIAS; Langan has showed that the queues along the Osgood Street
mainline will more than double for some movements as a result of the added volumes at the
signalized locations. For instance:
a. The 95t" percentile queue increasing from 430-feet to 778-feet for Osgood Street SB
at the North Signalized Driveway in the weekday morning (corridor peak).
b. The 95t" percentile queue increasing from 93-feet to 293-feet for Osgood Street SB at
the South Signalized Driveway in the weekday morning (corridor peak).
c. The 95t" percentile queue increasing from 153-feet to 316-feet for Osgood Street NB
at the South Signalized Driveway in the weekday evening (corridor peak).
d. These are jump the most notable examples and also may be reflected in the 50tn
percentile queue as well.
Although storage may be provided along the mainline corridor, the Applicant should provide
information on how these increased queues effect other driveway and roadway locations.
Please do not hesitate to contact me directly if you have any questions concerning our comments
at 978-794-1792. Thank you for your consideration.
Sincerely,
TEC, Inc.
"The Engineering Corporation"
amuel W. Gregorio, E, PTOE, RSP,
Senior Design Engineer—Transportation Planning & ITS
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