As part of its metropolitan transportation planning activities, SCAG works with transit operators, the region’s transportation planning agencies and the California Department of Transportation (Caltrans) to develop goals, objectives, plans and policies to provide effective and sustainable transit options for the region.

A key component of this partnership is the Regional Transit Technical Advisory Committee (RTTAC), which is composed of representatives from Caltrans, the region’s county transportation commissions and various transit operators.  The RTTAC provides a forum for input on the development of the regional transportation plan, the Federal Transportation Improvement Program  and SCAG’s Overall Work Program. Formal relationships and interactions between the above agencies, including RTTAC participation,  are governed by a set of Memorandums of Understanding (MOUs) that were updated in 2018. The MOUs describe the roles and responsibilities of each party in carrying out and supporting the metropolitan planning and programming processes and includes provisions for data sharing and the coordinated development of transit performance targets. These MOUs were executed pursuant to 23 Code of Federal Regulation 450.310(b). The current chair of the RTTAC is Jennifer Nguyen of Riverside Transit Agency.

Transit News

Recent news from Transit Providers in the SCAG Region. 

Reports & Publications

Americans With Disabilities Act (ADA) Paratransit Demand Forecast Tool

Federal statute establishes ADA complementary paratransit as a civil right, intended to serve as a “safety net” for persons with disabilities who cannot use fixed-route bus or rail service because of a disability.  

SCAG initiated a study in 2019 to develop a tool to assist the agency and transit providers with developing long term forecasts of demand for ADA paratransit services. The ADA Paratransit Demand Forecast Tool, the first of its kind in the region, will help to inform SCAG’s long-range planning for ADA Paratransit needs in Southern California.

It is intended to help measure the performance of plans in meeting the mobility needs of elderly and disabled residents, and to estimate the resources necessary to meet future needs. The tool can also be used to support the region’s ADA paratransit providers in their planning and budgeting activities. 


ADA Paratransit Demand Forecast Tool
ADA Paratransit Demand Forecast Tool – User Guide


The following video features a workshop on ADA Paratransit Demand Forecast Tool.

The ADA Paratransit Demand Forecast Tool, outputs and associated data are provided “as is” without warranty of any kind, whether expressed, implied, statutory, or otherwise including but not limited to, the implied warranties of merchantability and fitness for a particular purpose.


Adaptation and Resilience Planning

For Providers of Public Transportation

The planet’s climate is changing, and this is producing impacts on local transportation systems such as sea level rise, changes in temperature and precipitation, and increased flood risk. In order to maintain the resilience of the transportation system in light of these challenges, local agencies will have to analyze the potential impact of these challenges in their long range capital planning.