Agenda - Council - 05/24/2005 - Laserfiche WebLink

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Alpine Drive NW &Nutria Street I 2017 AM J N/A 9.g-A-0,07 'J PM tO,3~B-O.06 { PM ! l l.4-B-0.08 lndu~stt7 Ave NW 8.: Frontage ~Dad I 2017 ' AM ' N/A 37,3-E-0.32 PM 17.7-C-0.37 Unsig,mlized ~0o0 AlVl N'/,~ J7.3-E-0,32 P M 17./-C-0.o / *Delay in seconds per vehicie **Maximum delay, LOS, anti v/c ratio on any approach and/or movement #Additional westbound left turn lane resulting in triple left The analysis indicates that all o:f the intersections perform well in 2017'with the proposed intersection improvements. As the fiver crossing is added to the network, the traffic distribution on the roadway network [s chan~ed and some of t/'te [n_tersecfions that -. operated wet[ in 2017 fail in 2030, with no further improvements. Additional lanes are added at the intersections along Armstrong Boulevard to' assure that the intersection movements perform at LOS D or better in 2030. The design recommended fi'om the traffic analysis in 2030 requires a four-tone divided roadway for Armstrong Boulevard north el industry Avenue and a six-lane dixfded highway south of industry Avenue. This design will also allow tbr a u'iple left mrn westbound fi'om industry to Armstrong 'that is needed [or I:he traffic. As an alternative, an interchange design that alIows l'or.a free movement westbound to southbound would eliminate the need for the triple lef:t turn. The addition et'an interchange to and from the east on Tt-! 10 at the existing location of Armstrong Boulevard would also eliminate the need tbr a tripie [eft: turn at industry and Armstr.ong 6y di vetting some o [' the traffic to the new interchange instead of traveling th,'ough thc intersection. Even with the additional lanes on'Armstrong at the TH 10 single-point interchange, with the change in traffic patterns, specific trafi'1c movements Will fail. "['his failure is a direct result of the river crossing and its associated traffic patterns, specifically the ehs¢ to south and north to west movements. To provide acceptable Operations, the interchange design will rettuire tree movements t~br the northbotmd left {n addition to the right tums. This design requh'ement would require a svstem-to-system interchange for those movements. '['he [eft turns southbound and e,xstbound would also benefit fi-om free movements. The City will cocttinue to work with the Minnesota Depactmenl: of Transportation (Mn/DOT) and Anoka Count.,,, to find mx acceptable solution to accommodate 2030 traffic' volumes and the Mississippi River Crossing. page 21 of24 Prepared bp': 13o#on & Menk &c -461-