Item 20 - Memorandum of Understanding of the Master Plan of Arterial Highways Amendment

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Public Works Agency www.santa-ana.org/pw Item # 20 City of Santa Ana 20 Civic Center Plaza, Santa Ana, CA 92701 Staff Report July 1, 2025 TOPIC: Memorandum of Understanding for the Master Plan of Arterial Highways Amendment and Irvine Business Complex Agreement Amendment AGENDA TITLE Memorandum of Understanding of the Master Plan of Arterial Highways Amendment with the Orange County Transportation Authority and the City of Irvine and the Irvine Business Complex Agreement Amendment RECOMMENDED ACTION 1. Approve a memorandum of understanding for the Master Plan of Arterial Highways Amendment with the Orange County Transportation Authority and the City of Irvine (Agreement No. A-2025-XXX). 2. Approve an Amendment to the Irvine Business Complex Agreement (Agreement No. A-2025-XXX). GOVERNMENT CODE §84308 APPLIES: No DISCUSSION Background The Master Plan of Arterial Highways (MPAH) is a countywide roadway network designed to manage, improve, and support regional mobility and is managed by the Orange County Transportation Authority (OCTA). Established in 1956, the MPAH was created to complement the county's developing freeway system and has evolved into a critical element of Orange County's long-range transportation policy. Cities must adhere to the MPAH in order to remain eligible for Measure M2 funding. When a local agency proposes changes to the MPAH, coordination and consensus among the affected cities is required. Over the years, the MPAH has played a crucial role in shaping the county's transportation infrastructure, ensuring a coordinated effort between OCTA and the cities within Orange County. The primary goal of the MPAH is to outline a regional arterial highway system that supports existing and future land uses, ensuring that roads are designed to accommodate projected traffic volumes. It aims to provide a circulation system that complements the county's freeway network, focusing on the efficient