Loading...
HomeMy WebLinkAbout2013-08-06 Planning Board DJK Dermot J. Kelly Associates, Inc. Traffic Engineering/Transportation Planning 6 Cameron Road Andover, MA 01810 978-664-2205 MEMORANDUM TO: Mr. Jeffrey Sheehy FROM: Dermot J. Kelly, PE, PTOE Dundee Properties, LLC DJK Associates, Inc. PO Box 3099 6 Cameron Road Andover, MA 01810 Andover, MA 01810 SUBJECT: 102 Peters Street REF: 822-Mem4 North Andover, MA Updated Traffic Impact Analysis DATE: June 30, 2013 Proposal DJK Associates, Inc. initially conducted a Traffic Impact Analysis for the proposed construction of 2,745 Square Foot (SF) of commercial office space to be located at 102 Peters Street (Route 133) west of the Turnpike Street (Route 125) intersection in North Andover, MA. This Memorandum updates that analysis for the current proposed preschool facility proposed by The Prep Preschool, Inc. A single standard 24-foot wide curb cut has been constructed in the center of the project parcel with 11 parking spaces provided in front of the newly constructed building. The previous curb cut has been closed and the previous dwelling has been demolished. The proposed daycare facility will operate with a maximum student population of 39 children and 4 staff members, or a ratio of 10 students to 1 staff member. The preschool will operate between 7 AM and 6 PM and follow the North Andover school system schedule in terms of holidays and school closings. This preschool will function in the same manner as the The Prep Preschool Inc. existing facility in Tewksbury. The staff member's arrivals will be spread out over the 7:00 AM to 8:30 AM time period with each arrival occurring every 30 minutes or just prior to 7:00 AM, 7:30 AM, 8:00 AM and 8:30 AM (4 staff members in 4 vehicles). Student arrivals will also be spread out, but over a longer time period between 7:00 AM and 9:00 AM. No more than 10 students will arrive during each of the following 30 minute time periods 7:00 and 7:30 AM, 7:30 and 8:00 AM, 8:00 and 8:30 AM and 8:30 and 9:00 AM. Within each 30 minute time period, parents will be assigned a certain 5 to 10 minute period to arrive at the site. At the Tewksbury facility which has about 40 students, there are 10 siblings families (20 students in 10 vehicles) and 3 car pool families (6 students in 3 vehicles) resulting in 13 families that arrive in single student vehicles (13 students in 13 vehicles). Applying this student vehicle occupancy rate to the proposed facility in North Andover, a total of 30 vehicle-trips will enter the site (39 students in 26 vehicles plus 4 staff members in 4 DJKDermot J. Kelly Associates, Inc. Traffic Engineering/Transportation Planning Mr. Jeffrey Sheehy June 30, 2013 Page 2 vehicles) and 26 vehicles-trips will exit the site (26 family vehicles exiting after drop off) during the two hour 7:00 AM to 9:00 AM time period. Over the 7 to 9 AM peak hour (one hour between 7 and 9 AM) there will be one half of the two hour total or 15 vehicle- trips arriving (20-19 students in 13 vehicles plus 2 staff members in 2 vehicles) and 13 vehicles-trips exiting (13 family vehicles exiting after drop off) during the one peak hour time period. Similarly, the departure schedule will be spread out over a 4 hour period between 2 and 6 PM with staff members departing at 3:00, 4:00, 5:00 and 6:00 PM. Consequently, during each of the one hour periods there will be 1 staff member exiting the site (1 vehicle-trip) and 10 students (7 vehicle-trips) exiting the site or a total of 8 vehicle-trips exiting the site. Seven vehicle-trips will enter the site for pick-ups over the one hour evening peak hour. Vehicle-Trig) Generation Study Table 1 summarizes the peak-hour and daily project-generated traffic volumes for the proposed preschool facility and compares it to the previous proposed 2,745 SF office building. TABLE 1 VEHICLE-TRIP GENERATION SUMMARY 39 Students/ Office Space Time Period/ 2,745 SF of 4 Staff Member Compared To Direction of Travel Office Space a Preschool Preschool Weekday Morning Peak Hour Entering(vph)b 3 to 4 15 +11 to+12 Exiting (vph) 1 13 +12 to+11 Total (vph) 4 to 5 28 +24 to+23 Weekday Evening Peak Hour Entering (vph) 1 7 +6 Exiting (vph) 3 to 6 8 +2 to 5 Total (vph) 4 or 7 15 +8 to 11 Daily Traffic Entering (vpd)c 15 to 33 56 +23 to+41 Exiting (vpd) 15 to 33 56 +23 to+41 Total (vpd) 30 to 66 112 +46 to+82 a Based on the Institute of Transportation Engineers (ITE) Trip Generation, 8th Edition, 2008 Land Use Code #710 General Office Building and Land Use Code#720 Medical-Dental Office Building to with 100%general office space and 50/50%general office/medical-dental office space. b vph=vehicle-trips per hour. C vpd=vehicle-trips per day. DJKDermot J. Kelly Associates, Inc. Traffic Engineering/Transportation Planning Mr. Jeffrey Sheehy June 30, 2013 Page 3 Peak Parking Demand versus Supply Drop-off and pick-ups occur after the parent parks their vehicle and enters the building to drop-off or pick-up their child/children. Each vehicle is parked for approximately 2 to 3 minutes. Each child is packed and ready for pick-up prior to the parent arrival. During Holidays and weekends, there will generally be no parking on site. Generally between 6 PM and 7 AM during school days there will also be no parking on site. Generally, between 9 AM and 2 PM there will be only 4 staff vehicles parked on site. During the morning arrival period, the peak demand will occur during the 8:30 to 9:00 AM time period when all 4 staff vehicles will be parked on site. There are 11 parking spaces on site with 4 spaces occupied by staff vehicles and one space dedicated to handicap persons. The remaining 6 spaces will be available to the one to three vehicles expected to arrive at the assigned 5 to 10 minute period within the 30 minute peak arrival time period. Consequently, with a well-managed arrival/departure schedule the available parking can easily accommodate the anticipated peak parking demand. SUMMARY/CONCLUSION Based on the traffic analysis presented in this study, the 46 to 82 additional vehicle-trips the proposed project will generate will increase traffic by less than 0.4 to 0.7% when compared to the existing 11,586 vpd along Peters Street. It should be noted that many of the additional vehicle-trips may already be traveling along Peters Street between residences and a work place. The overall traffic-related impacts will not create any adverse impacts on traffic operations that would require any additional roadway improvements at the Peters Street/Proposed Site Driveway intersection.