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HomeMy WebLinkAbout1995-01-03 - AGENDA REPORTS - CITY CENTRE TRAFFIC (2)Iffl CITY OF SANTA CLARITA INTEROFFICE MEMORANDUM Mayor Jo Anne Darcy and City Cour^'�TM�TM} ° FROM; Lynn M. Harris, Deputy City Mana€ DATE: January 3, 1995 SUBJECT: CITY CENTRE TRAFFIC STUDY - BACKGROUND The process to reassess the central city circulation network began following Council direction in 1992 to find an alternative to the Caltrans proposed State Route 126 through the City. Subsequently, the City Council made a referral to the newly formed CTAC to receive further community input regarding an alternative east/west roadway network in the City. The recommendations from CTAC were presented to the Planning Commission in July 1993. The Planning Commission conducted public hearings on this topic and made refinements in the alternative roadway patterns to be studied and forwarded its recommendations to the City Council. On December 21, 1993, the City's Planning Commission recommended a network that the Council should consider in studying an amendment to the Circulation Element of the City's General Plan. The Planning Commission's recommendation followed several Planning Commission public hearings considering this issue and an all -day field trip in which Commissioners traveled throughout the City to visit planned roadway sites. The Commission considered alternatives put forth by the City Manager appointed Citizens Transportation Advisory Committee (CTAC) and those proposed under the various development proposals, as well as comments from the public in arriving at their recommendation. On September 13, 1994, City Council awarded a contract to Meyer, Mohaddes Associates, Inc., to conduct a traffic study for the purpose of examining four alternative road networks in an effort to recommend a superior acceptable highway system which would eliminate State Route 126 from the City's General Plan while providing a suitable alternative east/west connection through the City. It has been recognized throughout this process that an east/west connector with a network of supporting arterial highways was essential to the mobility of Santa Clarita Valley. The four road networks to be considered in the study were: 1. CTAC Recommended network with a northerly bypass.* (Exhibit "A") 2. Revised network/Santa Clarita Parkway with a northerly bypass.* (Exhibit "B") 3. Revised network/Santa Clarita Parkway without a northerly bypass.* (Exhibit "B") 4. Modified CTAC network with extension of Magic Mountain Parkway and a northerly bypass.* (Exhibit "C") *The northerly bypass refers to a six -lane alternate highway to the Route 126 alignment included in the current General Plan. These alternatives are depicted on the attached graphics; Exhibits A through C. Agenda Item: CITY CENTRE TRAFFIC STUDY -UPDATE WORKSHOP January 3, 1994 - Page 2 In addition to the four (4) alternative networks which were to be tested, the contract called for a test of the existing circulation network to determine its adequacy and to form the basis of comparisons for each of the alternatives. The existing circulation element is depicted in Exhibit "D". All network tests were to assume the build -out of the highway systems in each scenario and were to use the latest land -use information available from both the City and the County, Land -use information assumed build -out at the current General Plan level. All five tests have been completed. The tests were conducted using the Santa Clarita Valley Traffic Model. This model is the latest generation of models that resulted from the blending of the City of Santa Clarita Model and the Los Angeles County Model. The results of these tests will be presented at the January 3, 1995 City Council workshop scheduled for this purpose. Following the presentation, staff will solicit comments from the Council and be available for questions. RECOMMENDATION Staff recommends that the City Council receive the presentation, make comments and ask questions, permit comments from the public and provide guidance or direction for the balance of the study effort. The contract with Meyer, Mohaddes Associates, Inc., includes an additional test with the model. The Council may wish to provide direction on the nature of this test, as well as other input regarding the direction of the study. ATTACHMENTS Exhibit A Exhibit B Exhibit C Exhibit D RJR:lkl:hds mundAcityar.rlr GAP MAGIC MOVNTA,N A AA CALGROVE ©U o� J�jno Po NEWHALL ROAD EXT SOLEDAD CANYON ROAD 0 MyGCA�O y `m2 � GryT4i/y F-�'T V�9 `cmc O i < q D � A O lD v VIA pRINCESSA & ----NEWTF 9N 9't"O Og O,q D \9 SXERaP li; P� 4 OJT P ftift 91P�� CTAC RECOMMENDED NETWORK JANUARY 1995 Exhibit "A" Z GPN�ON Po PO hy�SS 90JOJC 92 OP 90 9Q NEWHALL ROAD E)CT -14P��NC�P SOLEDCANYON ROAD Mgc�c MoGHrq'N S CO2 Rio r VISYA 9Ci( 9!f ,9 ml is 9 1 OQ P -L �< V � P N`ON� PY S�EpR �a ci�P��POJ�E �iq pR7NCESSq Oy LYONS r 9L ccF DOCKWOLER SQN FFRNQNoO REVISED NETWORK 9040 SANTA CLARITA PARKWAY CALGROVE JANUARY 1995 Exhibit 'B" $pU4�E� C 0 po NEWHALL ROAD EXT 94 V $VVfl SOLEDAD CANYON ROAD `k9CIC MOrn„ G� + CrCJS°Tn � �lv0 �G ��fT 9 S y a z � 4 �7] P �G 4 VIA PRINCESSA SS�RM 1� GPr4pP9 PO Pd \1// �tia dLYONS CfC�t �y . Avg 4 rZ, T g�11e1 DRIVg - O�O� MODIFIED CTAC NETWORK WITH THE EXTENSION OF ;f,LGliovE MAGIC MOUNTAIN PARKWAY BLVD JANUARY 1995 Exhibit "C" Proposed Master Plan of ` Arterial Highways �s P HIGHWAYS aaaaa� Expreseway (8 lanes) Freeway Major Highway (6 Lanes) Secondary Highway (4 Lane.) ---_— _" UrAed Highway (2 L.nea) --- EXCEPTIONS AS NOTED Axcna •.nouu ro.^rsr rAx clswu..wunr✓ws awacs sA.1x rcusr ANCIL6 AITIOA'IL NRISr N+x� ra�.r 1pry �/lul a A' Exhibit 'D" Santa Clarita General Plan City of Santa Clarita Exhibit 'D"