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James LehnhoffT A�CP C�ty of Arden HilIs �ecember 7, 20Q9 Page � b o Reconfigure the wes�bound approac� of CR F at Lex�r�gton Avenue ta tncl�de a le�t-t�rn, throug�, and potentially a right-turn Iane. �'�is reconfiguratian would aisa resu�t in only a single eastbound lane along County Road F east of Lexing�on Avenue. o Recon�gure the eastbound approach of CR F at Lexington Avenue to include an eastbounc� �eft-tur�n and thraugh 1 ane, and construct a new ri �ht-turn 1 ane. o Ins�all eastbound and v�estbound protected left-turn phas�ng a� CR F and Lexin�ton Avenue. • AI1 key inters�c�ions are expected to operate at a� acceptable overall L�S D or better u�der ex�st�n� eonditions w�th recomme�ded improvements. • Seventy-two (72) crashes were reported within the study �rea during the frve-yea� pe��iod from 20a3 thro�gh 2007. The number of crashes by location ran�ec� from a h�gh of �8 reported at CR F and Lexington Aver�ue to a Iow o� two (2) reported a� CR F and Innovat�on �ay. o The only inte�-section in t�e area that has significant crash issues is at CIZ F and Hamline Avenue (Northbound). • The proposed Arden Village deveiopment is �ocated south of CR � between Haml�ne Avenue and �,exington A�enue. The development will consist of � 55-un�t workfo�-ce apartment bui�ding. • I�esu�ts of the year 20� 2 buile� operations analysis with existin� roadway geometr-ics �ndicate that a�l �ey ir�tersections will continue to operate a� an overail acceptab�e level of service D or bet�er during t�e �.m. and p.m. peak hours (si�nilar to existing conditions}. � Resuits of the year 2012 bu�ld witn Arden Village on�y oper�tions analysis ind�cate that all key intersect�ons, v�ith the exception of one, wiil continue to operate at ar� overalI acceptable LOS C or better during the a.m. and p.m. peak hours �v�th recommendec� �eo�netric �ayout and upc�ated sigr�al timing. The ir�tersectian of County Road F and Hamline Avenue (Northbound) �ri1� conti�ue to operate a� an unacceptable �,OS F durin� the p.m. peak hour w�thout any short-term �mprovements recommended. Hawev�r it �s not expected to s�g�i�cantly impact operat�ons a� the s�te aceess along CR F. • Results of �he year 2012 build with Boston Scientif�c operations analysis incl�cate that tvvo key intersectians are expected to aperate at unaceeptab�e levels of service c�urir�g the p.m. pea� ho�r w�th previously recom�nended Improvements. • To address t�e operational and safety �ssues �nder future year 20� 2 bui�d w�th Bos�on Scientif�c candit�ons, the follow�ng improve�ents are �ecommended: , o Instal�ation of a traffc sig�a� at CR F and Innovation �Vay is �xpected to improve the overall intersect�on level of service to an acceptable LOS B and LOS C dur�ng the a.m. and p.m. peak hours, respectively. a Construc� an additional nor�hbound �eft-turn �ane at CR F and Lexin�ton Avenue. This will re�uire mocii�cation o� the west approach of CR F to receive the additiona� Ieft-turn Iane. o Cor�struct a southbound rig�t-turn Iane at CR F and Lexington A�enue. Regional aceess closures at �ami�ne Avenue are expected �o increase the traffic volumes a�on� CR F by app�oximately �,0�0 vpd �ear Hamline Avenue and approximate�y 2,000 vpd near Lex�ngton Avenue. hf:lProjects169851RepQrtIQ91207 Finat Arden t�illage TS.doc