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Transportation Demand Management Program

Transportation Demand Management (TDM) refers to programs and strategies that manage and reduce traffic congestion by encouraging the use of transportation alternatives. SANDAG coordinates a number of programs that are increasing the number of commuters who carpool, vanpool, take transit, bike, walk, and telework. These activities are facilitated through the iCommute program.

Programs and services provided by iCommute include a vanpool subsidy program, transit solutions, regional support for biking, the Guaranteed Ride Home program, information about teleworking, and bike and pedestrian safety program support for schools.  

Public outreach increases awareness about transportation choices through events such as Bike to Work Day and Rideshare Week, and through direct outreach to employers, community groups, schools, and agencies. Information on these programs and events can be found at or by calling 511 and saying 'iCommute.'

Recent TDM Planning Studies

Integrating TDM into the Planning and Development Process
A study has been developed to assist municipal governments with implementing and monitoring TDM policies as part of their local plans and projects. Information on how TDM can be effectively incorporated into urban design, site development, and parking strategies also is included. Featured case studies and recommendations can be tailored to any jurisdiction’s needs. The study was accepted by the Transportation Committee in May 2012, for inclusion as a resource in the SANDAG Smart Growth Toolbox.

Integrating TDM into the Planning and Development Process – A Reference For Cities
In 2014, SANDAG and the City of Chula Vista partnered to host two workshops for city staff and the development community on best practices for implementing TDM programs through the development process. The outcomes from the workshops are expected to help the City of Chula Vista formalize a TDM program. The first workshop educated participants about TDM and the second workshop prompted discussion on potential TDM programs and policies for consideration by the City of Chula Vista. Lessons learned from this pilot project are being incorporated into a formal workshop series that will be available for interested jurisdictions in the San Diego region.
Integrating TDM into the Development Process: A Dialogue with Chula Vista
Workshop 1 – Minutes, PowerPoint, and Table Top Materials (March 2014)
Workshop 2 – Minutes, PowerPoint, and Table Top Materials (April 2014)

North Coast Corridor TDM Plan
The North Coast Corridor (NCC) presents an ideal opportunity to develop and deploy a corridor-specific TDM strategy that will mitigate the construction impacts of the proposed highway improvements while directly supporting the investment in Express Lanes and rail. The plan provides context-specific TDM solutions to manage congestion during construction and act as a foundation for sustained travel behavior change once construction is complete. Plan development included a comprehensive market research and outreach effort that revealed existing travel behavior, attitudes towards transportation alternatives, and the perceived and real barriers to using transportation alternatives. Based on the research findings and the input provided by corridor stakeholders, TDM strategies and a targeted marketing and outreach plan have been developed to meet the specific needs of NCC employers, residents, schools, agencies and institutions.

To launch the North Coast Corridor TDM strategy, a pilot program called Shift was implemented in early 2015. Shift is a public awareness campaign aimed at reducing single occupant vehicle trips and relieving traffic congestion during construction in the greater Golden Triangle. With several transportation improvements planned and underway, the greater Golden Triangle area provided an ideal opportunity to pilot the first joint TDM and construction awareness campaign. For more information visit
North Coast Corridor Transportation Demand Management Plan Summary Report
North Coast Transportation Demand Management Implementation Plan
Travel Encinitas: A Community-Based Travel Planning Pilot

Regional Telework Demonstration Project
Telework is one of the TDM strategies identified in the 2050 Regional Transportation Plan and Sustainable Communities Strategy. The purpose of this project is to work with the business community to understand the barriers to implementing telework policies, and to develop a regional strategy for significantly expanding telework to meet our regional goal for reducing greenhouse gas emissions. An extensive research effort that included focus groups, surveys and interviews with a range of employers was completed in 2013 and used in the development of a Regional Telework Strategy that was piloted with select employers in the region in 2015 and 2016.
Regional Telework Demonstration Project: Research and Outreach Final Report
Telework Demonstration Project: Pilot Overview Report

Regional Parking Management Toolbox
SANDAG has created a Regional Parking Management Toolbox as a means of providing the communities within the San Diego region a framework for evaluating, implementing, and managing parking management strategies that support their individual economic development, sustainability, and mobility goals. This interactive document provides a broad set of tools and step-by-step instructions for shaping successful parking management programs that address the unique challenges and needs of different types of communities.
Regional Parking Management Toolbox
Inventory of Local Parking Policies in the San Diego Region 

Project Manager

Antoinette Meier, Principal Regional Planner
Phone: (619) 699-7381, Email:

For media inquiries, please contact the SANDAG Public Information Office at (619) 699-1950 or