Studies and Programs

As the Metropolitan Planning Organization (MPO) for Imperial, Los Angeles, Orange, Riverside, San Bernardino, and Ventura Counties, SCAG performs ongoing research and analyses of the regional transportation system. Goods movement, in particular, receives a significant amount of attention as it serves as one the most critical economic generators in Southern California. ​​​
SCAG has recently completed, or is currently involved in, a number of studies related to goods movement in Southern California at any given time.  Below are a number of recently completed efforts designed to provide meaningful input into the development of the Regional Transportation Plan/Sustainable Communities Strategy as the agency develops the long-term blueprint for transportation in the region.

The Southern California Association of Governments (SCAG) region is home to approximately 34,000 warehouses with 1.17 billion square feet of warehouse building space, and undeveloped land that could accommodate an additional 338 million square feet of new warehouse building space. The Industrial Warehousing Study is an update from previous work, which evaluates how the region could accommodate future demand for warehouse space based on key supply chain trends. Study findings were used to formulate discussion points, which will engage policy-makers, logistics industry stakeholders, and public-sector agencies about how best to shape the region’s strategic vision and grow, while balancing economic and environmental objectives.

Industrial Warehousing Study Final Report – Full Study

    The Goods Movement Border Crossing Study - Phase II assessed goods movement border crossings in San Diego and Imperial Counties to identify emerging trends expected to affect future freight movement, provide forecasts of cross-border freight volumes under alternative scenarios, and develop recommendations to enhance future goods movement. 



    On The Move represents a long-range comprehensive plan for the goods movement system in Southern California. The Plan is designed to ensure that the region continues to play a vital role in the global supply chain while meeting regional economic goals, addressing critical mobility challenges, preserving the environment, and contributing to community livability and quality of life goals. The Plan is the final product of the Southern California Association of Governments’ (SCAG) Comprehensive Regional Goods Movement Plan and Implementation Strategy, a multi-year effort to collect data, conduct analyses, and engage with regional, statewide and national stakeholders covering various aspects of the region’s goods movement system.


    Summary Report

    Full Report​


    Complementary Studies



    Steering Committee


    September 28, 2011


    September 8, 2011


    August 4, 2011


    June 21, 2011


    March 21, 2011


    February 24, 2011


    December 9, 2010


    September 21, 2010


    April 21, 2010


    January 21, 2010


    October 13, 2009

    With today’s global economy and time-based competition, efficient freight transportation networks serve as extremely critical links between manufacturers, distributors, and consumers. Planning for adequate transportation infrastructure and freight facilities that enhance goods movement in is particularly challenging for border regions. Given this, SCAG conducted the Border Crossing Study and Analysis to gather and synthesize information on goods movement across the U.S.-Mexico border in Imperial County to assist in the assessment of infrastructure needs and general planning efforts.

    As a follow-up to its original study, SCAG conducted Phase II of the Port and Modal Elasticity Study to develop and apply analytical tools to predict flows of waterborne containerized imports from Asia to the United States through North American ports and landside supply-chain channels.  These forecasts were used by regional stakeholders to assist and advance regional policies on goods movement.

    Given the magnitude and complexity of goods movement in the region, and its impact on multiple stakeholders ranging from the private sector to public interests to communities, SCAG regularly engages and administers freight programs to address existing and future challenges.  Highlighted below are some of the primary programs through which SCAG practices this involvement.

    Created through a Memorandum of Understanding (MOU), the Southern California National Freight Gateway Collaboration comprises high-level leadership from regional, state and federal stakeholders working closely to address regional freight challenges and explore the common understanding about goods movement issues.  This is especially critical given its economic impact.  Efforts of the Collaboration include engaging members in productive, facilitated discussions aimed at supporting regional goods movement in Southern California while addressing the myriad infrastructure, environmental, and quality of life challenges. 

    Following the adoption of the 2012 RTP/SCS, SCAG formed the Goods Movement Subcommittee to provide the necessary leadership and policy forum to advance key strategies identified in the 2012 RTP/SCS towards implementation.  Over a series of six months, local regional leaders provided guidance for development of the upcoming 2016 RTP/SCS.


    February 25, 2013


    February 11, 2013


    January 29, 2012


    December 10, 2012


    October 29, 2012


    September 24, 2012