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J ame s Lehnh af�, AICF �ity of 1�rden Hills YEAR 20� 2 Bt11LD CONDlT��NS — WITH BOSTON �ClEN�'lFIC December 7, 2009 Page 13 To determine how weIl the existing anc� fu�ure roadway network will accorn�nodate year 2Q� 2 bui�d traffic �orecasts if Boston Scienti�c moved forv�ard wi�h thei� master plan, an operations analysis was condueted during the a.�n. and p.m. peak hours. This sce�ario �neiudes the potentia� development of the Boston Scienti�c site pre�iously r�e��ioned. Since t�e potential Boston Scientific deve�op�nent wouIc� generate a s�gni�eant number of peak hour �rips, the long-term irrip�ovemen� fo�- t�e �ntersec�ion of CR F and Hamline Avenue was assumed to be constructed. �'his i�nprovement i�c��des the c�osures of �he so�thbounc� I-�amline Avenue on-ramp to eastbounc� I-694 and the westbound I-694 off-ramp to Hamline Avenue. Traff c volumes were rr�odified ta reflect the reg�on�I access chang�s. It shoulcl be noted that the reg�ona� access closures at Ham�ine Avenue are expected to inerease the �raf�c volumes aIong CR F by ap�roximately 1,040 vpc� near Hamline Ave�u� and approximately 2,Q00 �pd near �.,ex�ngtan Avenue. These values were estimated based on the peak hour trafflc vol�mes t�at would be diverted anc� eonvertec� to dai�y numbers. T'abte 4 Year 2012 Bui[d Peak Hour Capacity Analysis — With Boston Scientific Leve! of �ervice Resutts Level of Service Intersection A.M. Peak P.M. Peak LOS De�ay �� LOS De�ay �� County Road F and Hamline Avenue C 2a sec. I3 40 sec. County Raad F and Bostan Scientific West Driveway � A�3 25 sec. A/D 25 sec. , - - - _-::::�:::::::::::�::::� :::::::::::::::::::::::::::: � - -- - -- ::::::::::::::::::::::::::::::::: ::::::::::::::::: ::_;::::::::: ::::::::::::::::::::: �Qun� �2oad F an �nnovati n W 2 ::::= :::::::::::::::::::::::: :�_::�.: _-:.:::::::;-::::::::::::::::::::::-:::::::::::::: ::�::: -.:...:: ::�.::::::::�:::: d o a A/D 5 sec. ::: - -- :::::::::::::::::�:::�::: : .:::::::::::::::::::::::::::::� :::::::�::::�:::��:�.-::::::::: y y . :�.::.:::.: .:._.:: .:. :::.::: .::..:.:.:..::::.:-::::.:.::: :..: _:: . �ount R a F - --= - = o d ane� Lexin t n Av n D 4 o e ue 0 sec. : .._�::::��`��:::::::::::::::::::::: -- ........... _ _ _ _ _ Y - :::�.�:_:��#::�:��;:t: � '' � For signa�ized intersections, delays shown represe�t overa�I intersect�on delay. For ur�signa�tzed intersections, delays shown represent the worst side-street approach. '� hndieates an unsignalized intersection with side-street stop control. The overa�l LaS is shown followed by the worst approae� L4S. IZesults of the year 2�12 build wi�h Boston Seientific operations analysis shown in �'able 4 �nd�cate that twa key inters�ctions are expected to operate �t a� unacceptable leve� af serviee durir�� the p.m. peak hour w�th previously r�cQmmended �mprovements. To improve the key in�ersections to acceptable Ievels of serv�ce, the follow�ng improv�ments are recommended: County Road F and In�ovation Way ` Instal�atio� of a traffic signal is recommended to �rnprove the overall intersee�ion level of se�vice ta an acceptab�e LOS B and LOS � dur�ng the a.m. and p.m. peak hours, respectively. The traffic signal w��l provide better access for s�de-street traf�c. Based on �he f�ture year 2012 traff�c volurnes, the traffic signal will likely meet �he peak hour traffic sig�al warran�.