Agenda - Planning Commission - 10/06/2005

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Summary and Conclusions The proposed new developmem is estimated to consist of residential units, office space, retail, and a Town Center exp~msion. Based on the traffic analysis provided, our 'recommendations and conclusions are: l. The number of residential units was changed in mid~May.2005, The apm'tments have been eliminated and the total nttmber of residential units was. changed to 686. This change has minimal hnpacts on the trip generation and no impacts on the final lane and traffic control needs. 2. An opening year of 2007 is set 'tbr all the development projects in this area. With the ftfll development of the Pulte Site, Town Center 1, and tlm Superstore, improvements will be required at intersections surrounding the site, These' improvements incktde the addition of'traffic lanes, a chan~ in traffic cootmI, or major intersection reconstruction. 3. By 2007, signalization should be considered at. the intersection of Alpine Drive and TH t0 based on level of service analysis. Additionally, a six-lane T[-[ 10 would bring LOS to D or better for all movements, By 2017, delay considerations for the intersection would require a full interchange at TH 10. Alth'ough the delay is high, with the low voktrne of traffic on Alpine Drive it is unlikely that this intersection would meet any signal warrant analysis, lf additk)nal development occurs to the west on Alpine Drive, the volume ct' tr~'lSc using the intersection may wammt signalization. 4. The intersection of'Alpine Drive and Armstrong Blvd. will require improvements bel'bre and aftc:r 2007.' These include the addition of multiple lanes and signalization as illustrated in Figures 9 and 10. By 2030, the voltU'nes traveling north and south are likely to require a four-lane divided Armstrong. 5, The intersection of Armstrong and Industry Aven.ue requires extensive recoustruction to bring all movements to LOS D or better by 200Z These improvements include the reconstruction of each roadway to a tbur-lane roadway with fidI turn lanes, Additionally, due to the high tm'ning volumes, dual le'.~ turn lanes are required both northbound and westbound. 6. After 2007, the roadway network should be redesigned to better accommodate the traffic from the sites and take off the pressure from .~Lrmstrong and industry. The proposed re-alignment of Armstrong Boulevard would greatly improve operations and traffic flow fl~rough the area. 7. With the new alignment of Armstrong, a new Armstrong and Industry intersection will be built. By 2017, this intersection will require a/:bur-lane roadway on each approach with full turn lanes. Dual [eft: turn lanes will also be required westbound, northbound, and southbound. By 2030, the volumes will be raised such that a triple left westbound is required. 'riffs design will require a six-lane Armstrong south of lx~dustry Avenue. Other options to alleviate this potential problem include an interchange degign that allows for westbound left turns to move fi'ee[y or by keeping a half-diamond interchange to the east on TH 10 off the existing Armstrong Boulevard. ~28 Putte b[omes Develolvmen! E;4I~I/ Trq/,/jc hnpacz Stu4.v CiO~ q/'Rama'ey, .4nokcl C'ounO,', 34inne,~'ota page 23 q/'24 Prepared by: Bohon & Menk,