INTRODUCTION The SCAG region encompasses six counties (Imperial, Los Angeles, Orange, Riverside, San Bernardino and Ventura) and 191 cities in an area exceeding 38,000 square miles with nearly 19 million people and more than 6 million households. SCAG's vision statement is to foster innovative regional solutions that improve the lives of Southern Californians through inclusive collaboration, visionary planning, regional advocacy, information sharing, and promoting best practices. Among many federal and state-mandated responsibilities, SCAG maintains a continuous, comprehensive, and coordinated planning process, including a Regional Transportation Plan/Sustainable Communities Strategy (RTP/SCS) and a Federal Transportation Improvement Program (FTIP), and other main plans and projects. Such planning activities are supported by the state-of-the-art travel demand models that SCAG develops and maintains wherein regional travel surveys have been historically used as empirical data in the model estimation, calibration and validation. BACKGROUND Over decades, SCAG administered major household travel surveys to obtain detailed information regarding household socio-economic characteristics and travel behaviors of household members in the SCAG region. Travel demand modeling and RTP/SCS planning analysis depend on periodic updates of household travel surveys. In 2011, the California Department of Transportation (Caltrans) conducted a statewide household survey with the goal of gathering travel pattern data from a large sample of state residents. The surveys characterize the travel patterns of all persons in the household and provide data on the household, person, vehicle, and trip attributes. The 2011 California Household Travel Survey (CHTS) survey data provide a foundation for the update of the regional travel demand model, SCAG ABM. The decade-old 2011 CHTS did not capture travel behavior changes caused by new modes (such as TNC), technology (such as telemedicine), and post-COVID-19 pandemic and will not be suitable for model validation and estimation of the following 2028 RTP/SCS. Moving away from cross-sectional household travel surveys conducted about every ten years in the SCAG region, SCAG will conduct continuous small sample household travel surveys that help capture dynamics in travel behavior and infrastructure, especially in the post-COVID-19 pandemic recovery era. The new survey will serve both SCAG modeling and planning in capturing base year model validation and travel behavior pattern for 2028 RTP/SCS. PROJECT OBJECTIVES A primary objective of this project is to gather travel behavior data from a large sample of residents in the SCAG region. The data should be suitable for estimation and calibrating SCAG regional travel demand model. This project aims to improve SCAG travel demand models through collected multi-day data that includes household level, person level, vehicle characteristics, travel patterns with GPS traces, in-home activities that substitute for travel and/or stated preference responses. The waves of survey data are also expected to support SCAG planning departments in evaluating emerging changes in revealed daily activity and travel patterns and/or stated preference for various planning strategies on VMT or GHG reduction. Consultant’s main task includes but are not limited to survey instrument design and methodology, sampling and recruitment strategy, survey testing, and implementation, and survey processing and analysis. Consultant shall work closely with SCAG staff. SCAG staff will play a significant role in supporting project tasks. On-time delivery of work products is vital to ensure timely completion of SCAG planning process

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