Item 12 - Select Locally Preferred Alternative for the First Street Multimodal Boulevard Study

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Select Locally Preferred Alternative for the First Street Multimodal Boulevard Study May 5, 2026 Page 5 Conceptual View _yoking east or P •ct nea•Shel, c- p b a , 0 O � u -y t; 'r t'd 'LLI, T T 12' 76. 12' S." (North) %OtRoadway S(IUN'alk N'ili Pam �.:.., y B*away 100'First St Right-of-way CONCEPTS EAST OF ZOO LANE For the Eastern Segment (1-5 to Tustin Avenue), a consistent four-lane configuration to match the existing cross-section of First Street within the City of Tustin limits, with expanded pedestrian and bicycle zones, is proposed across all alternatives. This concept builds on Caltrans' Freeway Ramp Active Mobility Enhancement Study (FRAMES) concept on First Street between Zoo Lane and Cabrillo Park Drive and is consistent with the vision and design standards included in the Metro East Mixed-Use (MEMU) Overlay Zone. COMMON ELEMENTS ACROSS ALL ALTERNATIVES All alternatives evaluated in the First Street Multimodal Boulevard Study share a common set of baseline improvements and design treatments intended to maximize safety, accessibility, and travel experience for all users and abilities along the corridor. These elements were consistently supported through technical analysis and community feedback and would be incorporated into the final design under any LPA. Common components include: • New and enhanced pedestrian crossings, including additional signalized and controlled mid-block crossings. • Shorter and safer intersection crossings, achieved through tighter curb radii, median refuges, and improved crossing geometry. • ADA-compliant curb ramps and accessible pathways at intersections and crossings. • Pedestrian-scale lighting along sidewalks and at crossings to improve visibility and safety. • Street trees and landscaping to increase shade, improve comfort during extreme heat, and enhance the overall streetscape.