Agenda - Planning Commission - 08/02/2018

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North Dayton Development AUAR 4) Indicate source of trip generation rates used in the estimates, The trip generation analysis for the development site was established using the methods and rates published in the Institute of Transportation Engineers (ITE) Trip Generation Manual, 10th Edition. It should be noted that Spack Consulting has also completed trip generation studies in the Metro area and found the local trip generation rates for residential uses to be lower than the comparable ITE rates. For the purposes of this study, ITE trip generation rates were used to provide a conservatively high estimate. See the Traffic Impact Study for full details of the traffic expectations and any recommended mitigation. 5) Availability of transit and/or other alternative transportation modes. Transit and alternative transportation modes are limited for this site with bus service provided along Dayton River Road and TH 169 only. Also, trails/sidewalks are provided on the east and west end of Dayton River Road, as well as on S. Diamond Lake Road, TH 169, River Hills Parkway, and 141' Avenue near Trunk Highway 101. b. Discuss the effect on traffic congestion on affected roads and describe any traffic improvements necessary. The analysis must discuss the project's impact on the regional transportation system. If the peak hour traffic generated exceeds 250 vehicles or the total daily trips exceeds 2,500, a traffic impact study must be prepared as part of the EAW. Use the format and procedures described in the Minnesota Department of Transportation's Access Management Manual, Chapter 5 (available at: http://www.dot.state.mn.us/accessmanagement/resources.html) or a similar local guidance. A Traffic Impact Study for the proposed site was completed in May 2018. Each scenario (City's land use and Developer's land use) assumed the proposed development was one-third complete by 2025 with full occupation by 2040. Since the Developer's land use plan is expected to have less traffic than the City's land use plan, traffic operations were only evaluated using the Developer's land use plan. Due to general background growth and adjacent specific developments, the following mitigation is recommended with or without the proposed North Dayton development for the year 2025: • Continue to explore options for corridor improvements on the TH 169 and CSAH 81 corridor with other agencies. • Re -stripe the Dayton River Road approach to TH 169 to provide dual left turn lanes, a left turn/through lane, and a right turn lane. Additional pavement on northbound TH 169 will be needed. ■ Update signal timing at all signalized intersections at least every three to five years. • Construct a single -lane roundabout at the N Diamond Lake Road/Brockton Lane, reserving right- of-way for future right turn lanes, or a traffic signal with dedicated turn lanes. 34