TRANSPORTATION CORRIDORY AGENCY - PUBLIC HEARING NOTICE - EST 1986

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II. Commission, Building industry Association, and cities within the areas of benefit have lead to the revisions contained within this report. DESCRIPTION OF CORRIDOR A TRANSPORTATION CORRIDOR i multimodal facility with a transit considerations such corridors will provide for projected volumes exceed ma will function similarly to be incorporated into the therefore, designed to meet s a high - speed, high volume, access - controlled median of sufficient width to be utilized for as fixed rail or high - occupancy vehicles. The high speed movement of vehicular traffic where jor arterial highway capacities. These routes freeways and expressways and should eventually freeway and expressway system. They are, minimum State and Federal standards. The relatively rapid growth and planned future development in Orange County is contributing directly to the need for major transportation corridors. Three such corridors (Foothill, Eastern and San Joaquin Hills) are included on the Master Plan of Arterial Highways (MPAH) , a component of the Transportation Element of the Orange County General Plan. Transportation corridors are depicted on the MPAH map as either concept - ually proposed or established alignments. These facilities are part of a planned traffic circulation system necessary to support development of the County in accordance with County and City land use plans. These facilities will also relieve recurrent congestion on major arterials and freeways in Orange County as concluded by several recent studies: Multi - Modal Transportation Study (1980), Santa Ana Transportation Corridor Study (1981) , Foothill Transportation Corridor Study (1981), and the San Joaquin Hills Transportation Corridor Study (1979). The SAN JOA UIN HILLS TRANSPORTATION CORRIDOR is planned as a high- speed, high capacity, access - controlled transportation facility to serve local and regional traffic and transit needs. It is an established alignment on the MPAH which includes the Corona del Mar Freeway (Route 73) in the Cities of Costa Mesa, Newport Beach and Irvine and extends southeasterly approximately 15 miles to join the San Diego Freeway (I -5) between Avery Parkway and Junipero Serra Road near the City of San Juan Capistrano (see Exhibit I). It will be designed to comport to scenic highway standards and provide approximately six to ten general purpose travel lanes with a median of sufficient width to accommodate future high - occupancy vehicle (HOV) lanes and special transit facilities if required. The central segment of the corridor carries the greatest amount of traffic because there are a limited number of other parallel highway facilities. Traffic volumes on the south end of the corridor are lowest along the route as a result of countywide traffic orientation, which is generally to the north. Access to the corridor will be limited to approximately 12 grade- separated Interchanges with arterial highways plus provisions for future additional exclusive interchange ramps for HOV lanes. Additional bridges may be required as the corridors cross substantial canyons and water courses. The EASTERN TRANSPORTATION CORRIDOR is currently shown as a conceptual alignment on the MPAR. The FOOTHILL TRANSPORTATION CORRIDOR is an -4-