Agenda - Council - 01/25/2000 - Laserfiche WebLink

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! I ! i I I ! I I I ! i I i I ! Steve Jankowski, P.E. - 12 - January 14, 2000 As shown in Table 4, for both alternatives, the intersection of Ramsey Boulevard and TH 10 will continue to operate at unacceptable LOS F in 2005 with the construction of the recommended improvements. The unacceptable level of service is due to the southbound to eastbound left-turn from Ramsey Boulevard to TH 10. In the p.m. peak hour, traffic traveling from the employment based land uses in Section 28 to the metro center fMinneapolis-St. Paul) results in the high left- turn volume. Therefore, as more industrial land uses are added to Section 28 (Altemative Two), the left-mm volume and delay at the Ramsey Boulevard/TH 10 intersection increases in the p.m. peak hour. The poor level of service during the a.m. peak hour is due pr!..arily to the existing and proposed reside~atial land uses north of TH 10 traveling to the metro comer. Construction o£a&',2ional through lanes on ~i ? 0 would improve level of s::r,Aee at the Ramsey Boulevard/IH !0 ii2ersection to acceptable LOg D or better in 2005 for bc :2 peak hours of Alternative One (T.'.c. tmical College) and tl~,:~ ~_.m. peak hour of Altext~ 2ye Two (Light Industrial). Howevc.'.', the p.m. peak hour o±' "he Alternative Two will col. z'.:,,e to operate at LOS F with thc, construction of additional tS,~c., dh lanes on TH 10. Accoz,Z:.g to BRW, Inc. (who is currently ,.repax'ing a corridor study of 2H 10) the construction of ~dd2ional through lanes on TH 10 is e,u,'rently considered a~ a possib)_~ long-term improvement ar~' '~erefore not in- place by 2005. Neighborh ooO,~'*- ~-' Connections An assessment of ,he potential connections oetween the Section 28 development and the neighborhood s',zer~ts to the north was also per~,rmed. Traffic was distr, ic'.,.ted between the Section 28 developmeat and the neighborhoo:l streets to the north assuming ~;e recommended intersection traffic controls and geometries. The ~a'affic volumes expected to lzavel through the neighborhood via 149th street resulted in approximately 1 percent of the total site generated traffic. This traffic was primarily from the medium density residential developments north of County Road 1t6. The area of highest impact is on 149th Street west of Ramsey Boulevard. Daily 'traffic volumes at this location are expected to increase by 375 vehicles per day at this location. This results in an estimated gDT of approximately 1,000 vehicles, which is consistent with guidelines for residential streets. The elimination of the connections between the 149th Street and County Road 116 does not impact level of service results at the County Road 116/Ramsey Boulevard and County Road l l6/Armstrong Boulevard intersections. However, if future traffic-volumes on Ramsey Boulevard and Armstrong Boulevard increase to the point that it becomes difficult to make left- tums out of 149th Street, neighborhood traffic may need to divert south to the signalized intersections on County Road 116.