Downtown Layover/Office Building Alternatives Screening Report

SANDAG DOWNTOWN LAYOVER/OFFICE BUILDING ALTERNATIVES SCREENING REPORT APRIL 2015 Table of Contents 1.0 Introduction and Study Purpose ................................................................................................. 1 2.0 Description of Alternatives .......................................................................................................... 1 Introduction ......................................................................................................................................... 1 Overview of the Layover Facility ........................................................................................................ 5 Project Alternatives ............................................................................................................................ 5 Site Alternatives ............................................................................................................................... 13 Site 1 ............................................................................................................................................. 13 Site 2 ............................................................................................................................................. 13 Site 3 ............................................................................................................................................. 14 Site 4 ............................................................................................................................................. 21 Site 5 ............................................................................................................................................. 21 Site Comparison ............................................................................................................................... 26 3.0 Screening Process and Results ............................................................................................... 28 3.1 Screening Criteria and Scoring Method ............................................................................... 28 Scoring Approach ......................................................................................................................... 28 A. Location – Proximity to Route Termini ..................................................................................... 28 B. Accessibility – Convenience for Buses to Reach Facility ........................................................ 34 C. Land Use – Consistency with Community Plan ....................................................................... 35 D. Sensitive Receptors – Proximity to Sensitive Receptors ......................................................... 37 E. Traffic – Anticipated Traffic Volumes and Impacts .................................................................. 38 F. Noise – Noise Impacts .............................................................................................................. 39 G. Safety – Potential Conflicts with Pedestrians & Vehicular Movements ................................... 40 H. Cultural Resources – Impacts to Known Sites/Historical Resources ...................................... 41 I. Utilities/Energy – Impacts to Supporting Infrastructure ............................................................. 42 J. Visual Impacts – Impact to Visual Quality ................................................................................ 43 K. Hazardous Materials – Potential Presence of Hazardous Materials ....................................... 45 L. Air Quality/GHG – Impact to Air Quality ................................................................................... 47 M. Air Quality/GHG – Ability to Support Achievement of Region's GHG Goals .......................... 48 N. Displacements – No. of Displacements ................................................................................... 49 O. Geologic Hazards .................................................................................................................... 50 P. Cost – Transit Service Operating Costs (not included in the scoring) ..................................... 51 3.2 Scoring Results .......................................................................................................................... 54 4.0 Conclusions and Next Steps .................................................................................................... 56 Conclusions ...................................................................................................................................... 56 Bus Operations ............................................................................................................................. 56 Environmental Considerations ...................................................................................................... 56 Environmental Process and Next Steps .......................................................................................... 57 Considerations for the Mixed Use Development Scenarios ............................................................ 57 Property Ownership ...................................................................................................................... 58 Design Considerations .................................................................................................................. 58 Appendix – Development Options Design Concepts .......................................................................... 60 i List of Figures Figure 1 Study Area .............................................................................................................................. 2 Figure 2 Site Locations and Existing Land Use .................................................................................... 3 Figure 3 Site Locations and Current Zoning ......................................................................................... 4 Figure 4 Route 7 Layover Front South of B Street ............................................................................... 7 Figure 5 Route 2 Layover B Street West of Front Street...................................................................... 7 Figure 6 Route 901 Layover Front North of B Street ............................................................................ 8 Figure 7 Standby Bus State North of B Street ...................................................................................... 8 Figure 8 Route 215 Layover State North of A Street ............................................................................ 9 Figure 9 BRT Route 235 layover on A Street ....................................................................................... 9 Figure 10 Site 1 Ground Floor Layout Concept ................................................................................... 10 Figure 11 Sites 2 & 3 Ground Floor Layout Concepts ........................................................................ 11 Figure 12 Sites 4 & 5 Ground Floor Layout Concepts ........................................................................ 12 Figure 13 Site 1 Location and Site Layout .......................................................................................... 15 Figure 14 Site 1 Photos ...................................................................................................................... 16 Figure 15 Site 2 Location and Site Layout .......................................................................................... 17 Figure 16 Site 2 Photos ...................................................................................................................... 18 Figure 17 Site 3 Location and Site Layout .......................................................................................... 19 Figure 18 Site 3 Photo ........................................................................................................................ 20 Figure 19 Site 4 Location and Site Plan ............................................................................................. 22 Figure 20 Site 4 Photo ........................................................................................................................ 23 Figure 21 Site 5 Location and Site Layout .......................................................................................... 24 Figure 22 Site 5 Photo ........................................................................................................................ 25 Figure 23 Site 1 Bus Access Routings ............................................................................................... 29 Figure 24 Site 2 Bus Access Routings ............................................................................................... 30 Figure 25 Site 3 Bus Access Routings ............................................................................................... 31 Figure 26 Site 4 Bus Access Routings ............................................................................................... 32 Figure 27 Site 5 Bus Access Routings ............................................................................................... 33 List of Tables Table 1 Site Comparison .................................................................................................................... 27 Table 2 Distances between Stops and Layover Sites ........................................................................ 28 Table 3 Factors Affecting Access

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