Escondido Ballpark Project Traffic Impact Analysis October 15, 2010 Prepared by Linscott, Law & Greenspan, Engineers 4542 Ruffner Street, Suite 100 San Diego, CA 92111 858.300.8800 www.llgengineers.com LLG Ref. 3-10-1980 Linscott, Law & Greenspan, engineers Traffic Transportation Parking Simulation Design TABLE OF CONTENTS SECTION PAGE 1.0 Introduction ................................................................................................................................ 1 2.0 Project Description .................................................................................................................... 4 3.0 Existing Conditions .................................................................................................................... 6 3.1 Existing Street Network ...................................................................................................... 6 3.2 Existing Traffic Volumes .................................................................................................... 9 3.3 Existing Bicycle & Pedestrian Network ............................................................................. 9 3.4 Existing Transit Network .................................................................................................... 9 4.0 Analysis Approach and Methodology .................................................................................... 12 4.1 Study Area ........................................................................................................................ 12 4.2 Analysis Time Period ........................................................................................................ 12 4.3 Intersections ...................................................................................................................... 13 4.4 Intersecting Lane Volume (ILV) ...................................................................................... 13 4.5 Street Segments ................................................................................................................. 14 4.6 Freeway Segments ............................................................................................................ 14 4.7 Freeway Ramp Meters ...................................................................................................... 15 5.0 Significance Criteria ................................................................................................................ 16 6.0 Existing Analysis ...................................................................................................................... 17 6.1 Existing Intersection Operations ....................................................................................... 17 6.2 Intersection Lane Vehicle (ILV) Analysis ........................................................................ 19 6.3 Existing Freeway Segment Operations ............................................................................. 20 7.0 Background Cumulative Projects .......................................................................................... 21 8.0 Project Trip Generation .......................................................................................................... 23 8.1 Travel Modes .................................................................................................................... 23 8.2 Vehicle Occupancy Ratio ................................................................................................. 25 8.3 Arrival Patterns ................................................................................................................. 25 8.4 Typical Game Attendance ................................................................................................. 26 8.5 Community Mixed-Use Reduction ................................................................................... 27 8.6 Existing Traffic Reduction ................................................................................................ 27 8.7 Ballpark Trip Generation .................................................................................................. 28 8.8 Ballpark Distribution and Assignment.............................................................................. 29 9.0 Near-Term Analysis ................................................................................................................. 32 LINSCOTT, LAW & GREENSPAN, engineers LLG Ref. 3-10-1980 i Escondido Ballpark N:\1980\Report\TIA_Oct 2010.doc 9.1 Near-Term Network Conditions ....................................................................................... 32 9.2 Near-Term Traffic Volumes ............................................................................................. 33 9.3 Near-Term Intersection Operations .................................................................................. 33 9.4 Near-Term ILV Analysis .................................................................................................. 35 9.5 Near-Term Freeway Segment Operations ........................................................................ 35 10.0 Long-Term Analysis ................................................................................................................ 40 10.1 Long-Term Network Conditions....................................................................................... 40 10.2 Long-Term Traffic Volumes ............................................................................................. 40 10.3 Long-Term Intersection Operations .................................................................................. 40 10.4 Long-Term ILV Analysis ................................................................................................. 42 10.5 Long-Term Freeway Operations ....................................................................................... 42 11.0 Congestion Management Program Compliance ................................................................... 47 12.0 Vehicle Site Access Review ...................................................................................................... 48 13.0 Significant Impacts, Mitigation Measures, and Recommendations .................................... 50 13.1 Significant Impacts and Mitigation Measures .................................................................. 50 13.2 Project Recommendations ................................................................................................ 50 14.0 Construction Traffic Review ................................................................................................... 54 15.0 Conclusions ............................................................................................................................... 55 LINSCOTT, LAW & GREENSPAN, engineers LLG Ref. 3-10-1980 ii Escondido Ballpark N:\1980\Report\TIA_Oct 2010.doc APPENDICES APPENDIX A. Intersection and Segment Manual Count Sheets B. Intersection Methodology Sheets C. Existing Intersection Analysis Sheets D. Existing ILV Calculation Sheets E. Existing Freeway Segment Analysis Sheets F. Cumulative Project Assignment Sheets G. Trip Generation Research Data H. Trip Distribution by Parking Area Locations I. Near-Term Intersection Analysis Sheets J. Near-Term ILV Calculation Sheets K. Near-Term Freeway Segment Analysis Sheets L. Long-Term Intersection Analysis Sheets M. Long-Term ILV Calculation Sheets N. Long-Term Freeway Segment Analysis Sheets O. CMP Arterial Analysis Sheets P. Site Access Analysis Sheets Q. Mitigation Analysis Sheets LINSCOTT, LAW & GREENSPAN, engineers LLG Ref. 3-10-1980 iii Escondido Ballpark N:\1980\Report\TIA_Oct 2010.doc LIST OF FIGURES SECTION—FIGURE # FOLLOWING PAGE Figure 1–1 Vicinity Map ................................................................................................................... 2 Figure 1–2 Project Area Map ............................................................................................................ 3 Figure 2–1 Site Plan .......................................................................................................................... 5 Figure 3–1 Existing Conditions Diagram ........................................................................................ 10 Figure 3–2 Existing Traffic Volumes .............................................................................................. 11 Figure 7–1 Cumulative Projects Traffic Volumes .......................................................................... 22 Figure 8–1 Parking Inventory Map ................................................................................................. 30 Figure 8–2 Project Traffic Volumes ................................................................................................ 31 Figure 9–1 Near-Term Conditions Diagram ................................................................................... 37 Figure 9–2 Near-Term without Project Traffic Volumes ................................................................ 38 Figure 9–3 Near-Term with Project Traffic Volumes ..................................................................... 39 Figure 10–1 Long-Term Conditions Diagram .................................................................................. 44 Figure 10–2 Long-Term without Project Traffic Volumes .............................................................. 45 Figure 10–3 Long-Term with Project Traffic Volumes ...................................................................