Chapter 1 - Caltrans - State of California

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Chapter 3 Comments and Coordination adjustments to the raw traffic counts to ensure balanced vehicle trips between adjacent intersections. Key assumptions were developed to analyze the intersections. A peak hour truck percentage of 7 percent was used for U.S. 101. A peak hour truck percentage of 2 percent was used for all ramps. A free-flow speed of 65 mph was used for the freeway mainline and 45 mph for the ramps. Analysis peak hours where from 7:00 to 8:00 AM and 4:45 to 5:45 PM. Peak hour intersection turning movement volumes, which occurred between 7:00 and 9:00 AM or 4:00 and 6:00 PM, were superimposed onto the mainline peak hour volumes. In order to determine the current operations, peak hour capacity analyses were performed for each intersection, ramp junction, and mainline freeway segment. The peak hour signal warrant was also evaluated for unsignalized intersections based on the Manual on Uniform Traffic Control Devices (MUTCD) (United States Department of Transportation and Federal Highway Administration, 2003). At side-street stop-controlled intersections, the LOS rating is based on the control delay for each minor movement. For all-way stop-controlled intersections, the LOS rating is based on the weighted average control delay of all movements. The traffic analysis software Synchro 6.0 was used for this study. Synchro is based on procedures outlined in the Transportation Research Board’s 2000 Highway Capacity Manual (HCM). Cartographic orientation of the intersection Throughout the majority of the study area, the US 101 follows the coastline and generally has a northwest-southeast orientation, though the highway does meander and change orientation. For the purposes of this study, US 101 is assumed to be a north-south facility, and all mainline segments, ramps, and intersections conform to this convention. This approach simplifies the mainline analysis by assuming all traffic traveling from the Seacliff interchange towards Carpinteria is northbound, and vice-versa. According to this convention, the Mussel Shoals access, located on the ocean-side of US 101, is oriented east-west. For example, at Mussel Shoals an "eastbound left turn" is a movement that allows trips to access northbound US 101, while the cartographic orientation of the intersection would suggest the movement is a northbound left turn. Similarly at La Conchita, the access is assumed to be oriented east-west. 66 IS/EA VEN-SB US101 HOV Project
Chapter 3 Comments and Coordination Existing Mainline Configuration Please refer to the description contained in Section 1.1 Introduction, under Existing Facility. Source Fehr and Peers Traffic Analysis Report July 2008 Figure 2.1-5 Mainline and Ramp Configuration IS/EA VEN-SB US101 HOV Project 67
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VENTURA / SANTA BARBARA 101 HOV PRO
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VEN-SB US101 HOV Project IS/EA ❖
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❖ iv VEN-SB US101 HOV Project IS/
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List of Figures List of Figures Fig
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Chapter 1Proposed Project 1.1 Intro
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Chapter 1 Proposed Project Backgrou
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Chapter 1 Proposed Project between
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Chapter 1 Proposed Project on a bas
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Chapter 1 Proposed Project For Vent
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Chapter 3 Comments and Coordination
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• Provide hardscape decorative de
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To comply, the following must be an
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• Soil stabilization Practices
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2.2.6 Air Quality Chapter 3 Comment
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Receiver Site #A Site #A1 Site #A2
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Chapter 4 List of Preparers Chapter
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Chapter 5 Distribution List Elected
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California Native Plant Society 909
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Community Based Organizations Ventu
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Richard Zavala Rincon Island/ Greka
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Evan E Skei Resident 6770 Ojai Ave.
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Mary C & James Cox Resident 7062 Ox
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Virginia Cotsis Resident 6820 Santa
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Doug and Jaleh White 8128 Puesta De
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Harry Van Wingerden 3902 Via Real C
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Thomas J. McGillis, M.D. 5206 Beckf
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Appendix A CEQA Checklist Appendix
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) Violate any air quality standard
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Potentially significant impact Less
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Please refer to section e) 12. POPU
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Appendix B Traffic Flow Charts Exis
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2015 Build Appendix B Traffic Flow
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2035 Build Appendix B Traffic Flow
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Appendix C Title VI Policy Statemen
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Appendix D Glossary and Abbreviated
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Appendix E Minimization and/or Miti
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Impact Avoidance or Minimization Me
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Appendix F Noise Aerial Maps and Ta
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20-Minute Noise Measurement Locatio
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Table B Predicted Noise Reduction F
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Appendix G Letter to the State Hist
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Chapter 1 - Caltrans - State of California

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