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Memorandum Project #: 13444.00

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Memorandum Project #: 13444.00 b V To: The Cape Cod Commission Date: March 3, 2017 Memorandum Project #: 13444.00 From: Randall C. Hart, Director of Re: Safety Evaluation and Transportation Demand Management Plan Transportation Planning & Proposed Greenside Office Park Engineering Hyannis, Massachusetts Kathleen Keen, EIT Introduction VHB, Inc. has prepared a safety evaluation and transportation demand management (TDM) plan to satisfy the Cape Cod Commission (CCC) Transportation Staffs Comments Memorandum dated September 9, 2016. The following memorandum summarizes the results of the safety evaluation and proposed TDM plan for the Greenside Office Park redevelopment located at the intersection of Route 132 (Iyannough Road) and Attucks Lane in Hyannis, Massachusetts. Project Description The proposed Greenside Office Park redevelopment (the Project) is located at 10 Attucks Lane in Hyannis, Massachusetts. The proposed Project involves the demolition of the existing building/facilities currently occupied by Sun Transportation Company and Cape Cod Trailer Storage and the construction of two office buildings totaling approximately 24,918 sf of space. Access to the existing site is currently provided by a full access driveway on Attucks Lane and a right-in/right-out driveway on Route 132 (Iyannough Road). Under the proposed redevelopment project, the driveway configuration will remain the same, although the Route 132 curb-cut is proposed to be relocated further to the north from the Attucks Lane intersection than present condition. A proposed site plan is included in the Attachments to this memorandum. Study Area The study area, as outlined in the Pre-DRI memorandum, dated August 19, 2016, is based on a review of the anticipated trip generation and trip distribution for the proposed project. The study area was established also in part based on a review of the RPP and the RPP Functional Classification of Cape Cod Roadways Map. In addition, the CCC Transportation Staffs Comments Memorandum dated September 9, 2016, requested that two additional intersections be added. The study area included the following seven intersections: Route 132 (Iyannough Road) at Route 6 Westbound Ramps Route 132 (Iyannough Road) at Route 6 Eastbound Ramps Route 132 (Iyannough Road) at Shootflying Hill Road Route 132 (Iyannough Road) at Site Driveway Route 132 (Iyannough Road) at Attucks Lane Route 132 (Iyannough Road) at Phinney's Lane Attucks Lane at Site Driveway 101 Walnut Street PO Box 9151 Watertown, MA 02472-4026 \Whb\proj\Wat-TS\13444 00\ docs\ memos\ Safety Memo\Safety MemoJINAL_030317.docx P 617.924.1770 Ref: 13444.00 March 3, 2017 Page 2 Safety Evaluation MassDOT Vehicular Crash Data To identify potential vehicle crash trends in the study area, vehicular crash data for the study area intersections were obtained from Massachusetts Department of Transportation (MassDOT)for the most recent five-year period (2010- 2014) available. A summary of the MassDOT vehicle crash history is provided in Table 1 and the detailed crash data is provided in the Attachments to this memorandum. In addition to summarizing the crash history, VHB also calculated crash rates for the study area intersections. Intersection crash rates are calculated based on the number of crashes at an intersection and the volume of traffic traveling through that intersection on a daily basis. The MassDOT average intersection crash rate for District 5 (the MassDOT district designation for the Town of Barnstable) is 0.76 for signalized intersections and 0.58 for unsignalized intersections. In other words, on average, 0.76 crashes occurred per million vehicles entering signalized intersections and 0.58 crashes occurred per million vehicles entering unsignalized intersections throughout District 5. The crash rate worksheets for the study area intersections are included in the Attachments to this memorandum. \\vhb\proj\Wat-TS\13444.00\docs\memos\Safety Memo\Safety Memo_FINAL030317.docx Ref: 1.3444.00 March 3, 2017 Page 3 Table 1 Intersection Vehicular Crash Summary (2010 — 2014) - MassDOT Route 132 at: Attucks Lane at: Route 6 WB Route 6 EB Shootflying Ramps Ramps Hill Road Site Driveway Attucks Lane Phinney's Lane Site Driveway Signalized? Yes Yes Yes No Yes Yes No MassDOT Average Crash Rate 0.76 0.76 0.76 0.58 0.76 0.76 0.58 Calculated Crash Rate 0.41 0.26 0.26 0.00 0.34 0.54 0.00 Exceeds Average? No No No No No No No Year 2010 0 1 0 0 0 1 0 2011 3 3 3 0 6 5 0 2012 8 6 5 0 7 13 0 2013 5 1 6 0 5 11. 0 2014 4 6 4 0 4 13 0 Total 20 17 18 0 22 43 0 Average 4.00 3.40 3.60 0.00 4.40 8.60 0.00 Collision Type Angle 5 5 4 0 4 4 0 Head-on 0 1 0 0 1 0 0 Rear-end 9 9 12 0 12 37 0 Rear-to-rear 0 0 0 0 1 0 0 Sideswipe, same direction 3 0 1 0 3 1 0 Single vehicle crash 1 2 1 0 1 1 0 Not Reported/Unknown 2 0 0 0 0 0 0 Severity Fatal Injury 0 2 0 0 1 0 0 Non-Fatal Injury 3 5 8 0 9 9 0 Property Damage Only 15 9 10 0 12 34 0 Not Reported/Unknown 2 1 0 0 0 0 0 Time of day Weekday ,7:00 AM - 9:00 AM 2 4 6 0 2 2 0 Weekday, 4:00 — 6:00 PM 5 2 4 0 5 4 0 Saturday 11:00 AM — 2:00 PM 0 1 1 0 1 2 0 Weekday, other time 10 7 4 0 13 25 0 Weekend, other time 3 3 3 0 1 10 0 Pavement Conditions Dry 18 12 17 0 20 36 0 Wet 1 4 1 0 1 6 0 Ice 0 1 0 0 0 0 0 Water (standing, moving) 0 0 0 0 0 1 0 Not Reported/Unknown 1 0 0 0 1 0 0 Non-Motorist (Bike, Pedestrian) 0 1 1 0 0 0 0 Source: MassDOT \\vhb\proj\Wat-TS\13444.00\docs\memos\Safety Memo\Safety Memo_FINAL030317.docx Ref: 1.3444.00 March 3, 2017 Page 4 As shown in Table 1, none of the study area intersections had calculated crash rates over the district average. The majority of collisions within the study area were rear-end crashes resulting in property damage only under dry pavement conditions. Crashes involving non-motorists (bike, pedestrian) occurred at the intersection of Route 132 at Route 6 Eastbound ramps and Route 132 at Shootflying Hiii Road. It should be noted fatal crashes were reported at the intersections of Route 132 at Route 6 Eastbound ramps and Route 132 at Attucks Lane. In addition, based on the MassDOT crash data, the following intersections experienced an average of three or more crashes per year: ■ Route 132 (Iyannough Road) at Route 6 Westbound Ramps ■ Route 132 (Iyannough Road) at Route 6 Eastbound Ramps ■ Route 132 (Iyannough Road) at Shootflying Hill Road ■ Route 132 (Iyannough Road) at Attucks Lane ■ Route 132 (Iyannough Road) at Phinney's Lane As stated in the Regional Policy Plan (RPP) Minimum Performance Standard (MPS) TR1.3, "The applicant shall identify safety impacts at road and intersection locations with three or more crashes per year where the project is expected to add 25 or more peak hour trips." To accomplish this, it is necessary to thoroughly review the crash reports from the local and state police departments to get a more detailed account of each incident. Local crash reports were obtained from the Town of Barnstable Police Department and state crash reports were obtained from MassDOT for the five study area intersections that averaged three or more crashes per year. Using the local and state crash reports, collision diagrams were created for the five study area intersections to identify trends and appropriate safety mitigation measures. The crash reports and collision diagrams are included in the Attachments to this memorandum. Mitigation The proponent has proposed a combination of different mitigation measures to address the potential impacts of the proposed project. The proposed measures are identified below. In terms of compliance with the Regional Policy Plan and the CCC Transportation Staffs Comments Memorandum dated September 9, 2016, there are two primary focus areas that require traffic mitigation: ■ Goal TR1: Safety ■ Goal TR2: Trip Reduction/Transportation Balance and Efficiency The mitigation responsibilities of the project for each RPP Goal are identified below. Safety As discussed previously discussed, VHB provided a summary of the vehicular crash history for the study area locations. As stated in Minimum Performance Standard (MPS) TR1.3: \\vhb\proj\Wat-TS\13444.00\docs\memos\Safety Memo\Safety Memo_FINAL_030317.docx Ref: 13444.00 March 3, 2017 Page 5 "Identification ofSafety Impacts: The applicant shall identify safety impacts at road and intersection locations with three or more crashes per year where the project is expected to add 25 or more peak-hour trips. If applicable, funds to implement safety improvements shall be deducted from the transportation mitigation payment. The applicant shall be required to implement the needed safety improvements as determined by the Commission prior to obtaining a final Certificate of Compliance and shall be responsible for the safety improvements even if the cost of these safety improvements exceeds the transportation mitigation payment amount. Remaining transportation funds shall be paid to the County of Barnstable, prior to obtaining a final Certificate of Compliance, to be used for transportation-related purposes within the area affected by the DRI. All measures to mitigate safety impacts shall be consistent with Goal TR3 and its supporting Minimum Performance Standards." Route 132 at Route 6 Westbound Ramps There were a total of 20 crashes based on the MassDOT data identified at this intersection from 2010 through 2014.
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