APPENDIX O TRAFFIC IMPACT STUDY Traffic Study Report for the Vanden Meadows Specific Plan & Development Project November 2011 TABLE OF CONTENTS I. INTRODUCTION 1 A. PURPOSE OF STUDY ................................................................................................. 1 B. PROJECT LOCATION ................................................................................................. 1 C. PROJECT STUDY AREA ............................................................................................. 1 II. ASSUMPTIONS AND METHODOLOGY 5 A. TRAFFIC MODEL ...................................................................................................... 5 B. PLANNED TRANSPORTATION IMPROVEMENTS .......................................................... 5 C. GENERAL PLAN CONSISTENCY ................................................................................ 6 D. ANALYSIS METHODOLOGY ...................................................................................... 6 E. STANDARDS OF SIGNIFICANCE ................................................................................. 7 F. ANALYSIS SCENARIOS ............................................................................................. 8 III. PROJECT DESCRIPTION, TRIP GENRATION AND GENERAL PLAN 11 A. PROJECT DESCRIPTION ........................................................................................... 11 B. PROJECTED PROJECT TRIP GENERATION ................................................................ 11 C. GENERAL PLAN AND REGIONAL TRANSPORTATION PLAN CONSISTENCY .............. 11 IV. EXISTING CONDITIONS 14 A. ROADWAY NETWORK ............................................................................................ 14 B. EXISTING TRAFFIC VOLUMES AND EXISTING PLUS PROJECT TRAFFIC VOLUMES .. 15 C. ROADWAY SEGMENT OPERATIONS ........................................................................ 17 D. INTERSECTION OPERATIONS .................................................................................. 17 E. INTERSECTIONS WITHOUT PROJECT ....................................................................... 18 F. INTERSECTION IMPACTS WITH PROJECT ................................................................ 20 V. EXISTING PLUS APPROVED PROJECTS 28 A. EXISTING PLUS APPROVED PROJECTS TRAFFIC VOLUMES ..................................... 28 B. ROADWAY SEGMENT OPERATIONS ........................................................................ 32 C. ROADWAY SEGMENT IMPACTS WITH PROJECT ....................................................... 33 D. EXISTING PLUS APPROVED PROJECTS INTERSECTION OPERATIONS ....................... 34 E. INTERSECTION IMPACTS WITH PROJECT ................................................................. 38 VI. CUMULATIVE (YEAR 2030) CONDITIONS 47 A. CUMULATIVE (YEAR 2030) TRAFFIC VOLUMES..................................................... 47 B. ROADWAY SEGMENT IMPACTS WITH PROJECT ....................................................... 51 C. CUMULATIVE INTERSECTION OPERATIONS ............................................................ 53 D. INTERSECTION IMPACTS WITH PROJECT ................................................................. 57 City of Vacaville Public Works Department - Traffic Engineering Division page i of 68 Traffic Study Report for the Vanden Meadows Specific Plan & Development Project November 2011 LIST OF FIGURES FIGURE 1 PROJECT LOCATION 2 FIGURE 2 PROJECT LOCATION & STUDY INTERSECTIONS 3 FIGURE 3 PROJECT SITE AND SURROUNDING ROADWAY NETWORK 9 FIGURE 4 PROJECT SITE AND SURROUNDING ALTERNATIVE ROADWAY NETWORK 10 FIGURE 5A EXISITNG PEAK HOUR INTERSECTION VOLUMES 22 FIGURE 5B EXISTING PEAK HOUR INTERSECTION VOLUMES 23 FIGURE 6A EXISTING + PROJECT PEAK HOUR INTERSECTION VOLUMES 24 FIGURE 6B EXISTING + PROJECT PEAK HOUR INTERSECTION VOLUMES 25 FIGURE 7A EXISTING + ALTERNATIVE PROJECT PEAK HOUR VOLUMES 26 FIGURE 7B EXISTING + ALTERNATIVE PROJECT PEAK HOUR VOLUMES 27 FIGURE 8A EXISTING + APPROVED PROJECTS WITHOUT PROJECT 39 FIGURE 8B EXISTING + APPROVED PROJECTS WITHOUT PROJECT 40 FIGURE 9A EXISTING + APPROVED PROJECTS WITHOUT PROJECT WITHOUT FOXBORO 41 FIGURE 9B EXISTING + APPROVED PROJECTS WITHOUT PROJECT WITHOUT FOXBORO 42 FIGURE 10A EXISTING + APPROVED PROJECTS WITH PROJECT 43 FIGURE 10B EXISTING + APPROVED PROJECTS WITH PROJECT 44 FIGURE 11A EXISTING + APPROVED PROJECTS WITH PROJECT WITHOUT FOXBORO 45 FIGURE 11B EXISTING + APPROVED PROJECTS WITH PROJECT WITHOUT FOXBORO 46 FIGURE 12A YEAR 2030 PEAK HOUR VOLUMES WITHOUT PROJECT 61 FIGURE 12B YEAR 2030 PEAK HOUR VOLUMES WITHOUT PROJECT 62 FIGURE 13A YEAR 2030 PEAK HOUR VOLUMES WITHOUT PROJECT WITHOUT FOXBORO 63 FIGURE 13B YEAR 2030 PEAK HOUR VOLUMES WITHOUT PROJECT WITHOUT FOXBORO 64 FIGURE 14A YEAR 2030 PEAK HOUR VOLUMES WITH PROJECT 65 City of Vacaville Public Works Department - Traffic Engineering Division page ii of 68 Traffic Study Report for the Vanden Meadows Specific Plan & Development Project November 2011 FIGURE 14B YEAR 2030 PEAK HOUR VOLUMES WITH PROJECT 66 FIGURE 15A YEAR 2030 PEAK HOUR VOLUMES WITH PROJECT WITHOUT FOXBORO 67 FIGURE 15B YEAR 2030 PEAK HOUR VOLUMES WITH PROJECT WITHOUT FOXBORO 68 LIST OF TABLES TABLE 1 SIGNALIZED INTERSECTION LEVEL OF SERVICE DEFINITIONS USING V/C RATIO 7 TABLE 2 VACAVILLE GENERAL PLAN SEGMENT CAPACITIES BY CLASSIFICATION 7 TABLE 3 PROJECT TRIP GENERATION 12 TABLE 4 ALTERNATIVE PROJECT TRIP GENERATION 13 TABLE 5 ROADWAY SEGMENT ANALYSIS - PM PEAK HOUR EXISTING AND EXISTING WITH PROJECT 16 TABLE 6 INTERSECTION ANALYSIS - AM PEAK HOUR EXISTING PLUS PROJECT 19 TABLE 7 INTERSECTION ANALYSIS - PM PEAK HOUR EXISTING PLUS PROJECT 20 TABLE 8A ROADWAY SEGMENT ANALYSIS - PM PEAK HOUR EXISTING + APPROVED + PROJECT 29 TABLE 8B ROADWAY SEGMENT ANALYSIS - PM PEAK HOUR EXISTING + APPROVED + PROJECT 30 TABLE 8A ROADWAY SEGMENT ANALYSIS - PM PEAK HOUR EXISTING + APPROVED + PROJECT WITHOUT FOXBORO 31 TABLE 8B ROADWAY SEGMENT ANALYSIS - PM PEAK HOUR EXISTING + APPROVED + PROJECT WITHOUT FOXBORO 32 TABLE 9 INTERSECTION ANALYSIS - EXISTING + APPROVED + PROJECT AM PEAK HOUR 36 TABLE 10 INTERSECTION ANALYSIS - EXISTING + APPROVED + PROJECT PM PEAK HOUR 37 TABLE 11A ROADWAY SEGMENT ANALYSIS - PM PEAK HOUR YEAR 2030 48 TABLE 11B ROADWAY SEGMENT ANALYSIS - PM PEAK HOUR YEAR 2030 49 City of Vacaville Public Works Department - Traffic Engineering Division page iii of 68 Traffic Study Report for the Vanden Meadows Specific Plan & Development Project November 2011 TABLE 12A ROADWAY SEGMENT ANALYSIS - PM PEAK HOUR YEAR 2030 WITHOUT FOXBORO 50 TABLE 12B ROADWAY SEGMENT ANALYSIS - PM PEAK HOUR YEAR 2030 WITHOUT FOXBORO 51 TABLE 13 INTERSECTION ANALYSIS – YEAR 2030 AM PEAK HOUR 55 TABLE 14 INTERSECTION ANALYSIS – YEAR 2030 PM PEAK HOUR 56 LIST OF APPENDICES Appendix A Volume Counts Appendix B Existing Conditions Intersection LOS Calculations B1 Existing Conditions B2 Existing With Project B3 Existing With Alternative Project Appendix C Exisitng Plus Approved Project LOS Calcualtions C1 Existing Plus Approved Projects Without Project C2 Existing Plus Approved Projects Without Project Without Foxboro Ext. C3 Existing Plus Approved Projects With Project C4 Existing Plus Approved Projects Alternative Project (Without Foxboro Ext.) Appendix D Cumulative (2030) Conditions Intersection LOS Calculations D1 Cumulative (Year 2030) Without Project D2 Cumulative (Year 2030) Without Project Without Foxboro Ext. D3 Cumulative (Year 2030) With Project D4 Cumulative (Year 2030) With Alternative Project (Without Foxboro Ext.) City of Vacaville Public Works Department - Traffic Engineering Division page iv of 68 Traffic Study Report for the Vanden Meadows Specific Plan & Development Project November 2011 I. INTRODUCTION A. Purpose of Study This report documents the traffic analysis performed to evaluate the transportation impacts expected from the proposed development of the Vanden Meadows Specific Plan and Development Project (“Project”) in the City of Vacaville, California. This report documents the assumptions used in this traffic analysis, methodologies applied, results of traffic analysis, and evaluates these results to assess the potential transportation impact of the Project on the transportation system in the vicinity. B. Project Location Project is located in Vacaville, California which is approximately midway between San Francisco and Sacramento on Interstate 80. Vacaville is in Solano County between the city of Fairfield to the south and the City of Dixon to the north. The Project is located in the southeast corner of Vacaville adjacent to current City Limits. Neighboring cities include Fairfield to the south and Dixon to the north. Figure 1 provides a map of the location of Project Site within Vacaville. Access to the Specific Plan area is primarily provided by Vanden Road, Alamo Drive, Leisure Town Road (part of proposed Jepson Parkway), Nut Tree Road, and Peabody Road that are part of and provided connection to existing roadway network. C. Project Study Area Traffic analysis includes evaluating the capacity of major intersection in vicinity of Project Site and along main access routes to and form Project Site. The following list documents the twenty- four (24) intersections analyzed for Existing, Existing Plus Approved Projects and Cumulative (Year 2030) conditions: 1. Leisure Town Road (Jepson Parkway) / Interstate 80 Westbound Ramps 2. Leisure Town Road (Jepson Parkway) / Interstate 80 Eastbound Ramps 3. Leisure Town Road (Jepson Parkway)/ Orange Drive 4. Leisure Town Road (Jepson Parkway)/ Sequoia Drive 5. Leisure Town Road