TDM for local governments

Successful Transportation Demand Management (TDM) programs start at the local level with neighborhood design and parking decisions. Efficient land use and streets designed for all users can reduce the need for auto travel for daily trips. Managing parking supply and pricing can encourage alternatives to single occupant vehicle travel.

The adoption and implementation of a comprehensive set of TDM strategies by local governments promotes sustainable mobility and supports smart growth land use decisions. These strategies can be incorporated into a variety of municipal plans and policies. For more information, visit

Mobility Management Toolbox

SANDAG developed the Mobility Management Toolbox to help jurisdictions and developers evaluate the potential Vehicle Miles Traveled (VMT) benefits of mobility management measures, including TDM and Transportation System Management (TSM). The toolbox will provide local jurisdictions and developers within the San Diego region a structure for evaluating mobility management strategies as part of the development review process and transportation impact analyses as required under the California Environmental Quality Act (CEQA).

The toolbox also supports the transition from a Level of Service (LOS) metric to VMT as mandated by Senate Bill 743 (Steinberg, 2013), and Climate Action Plan (CAP) implementation and monitoring.

Toolbox resources include:

SANDAG hosted a webinar in late 2018 to present information on the Mobility Management Toolbox. Guest presenters from the City of San Francisco and City of San Jose shared their experience with developing and implementing transportation mitigation programs and provided a live demonstration of their supporting VMT calculator tools. View the webinar recording.

Where have municipal TDM strategies worked?

Boulder, CO. TDM is one of five focus areas of the City of Boulder’s Transportation Master Plan (TMP), which serves as the blueprint for the City’s transportation system. A primary component of the City’s TDM goals is to expand transit ridership and reduce drive alone trips by increasing the distribution of annual transit passes, an EcoPass. The City estimates that more than 82,000 residents, employees, and university students have an EcoPass. With the adoption of the City’s Transit Village Area Plan, every resident or employee in Boulder Junction receives an EcoPass, subsidized bikeshare membership, and a one-time driving credit and application fee waiver for carshare memberships.

Seattle, WA. The City of Seattle requires that new commercial developments 100,000 square feet or greater implement a Transportation Management Program (TMP) that mitigates traffic and parking impacts. The TMP can include infrastructure improvements or programmatic strategies that help reduce occupant drive alone trips. The requirement for a TMP is determined during the environmental review of the development and is subsequently included in its master use permit.

Arlington, VA. The TDM for Site Plan Development Program works directly with developers and property managers to mitigate transportation impacts by increasing the availability, awareness, and use of alternative modes. TDM Site Plan staff conduct annual visits to review plan compliance. Fees associated with development review and annual site visits are assessed by developers and/or property managers and may include contributions to support public transportation services.

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

Where have parking strategies worked?

San Diego, CA. In support of its Climate Action Plan (CAP), the City of San Diego developed a CAP Consistency Checklist that requires new developments within Transit Priority Areas (TPAs) to implement strategies that help to reduce GHG emissions. A development may select from a predefined list of energy, water, parking, and TDM strategies that are consistent with CAP goals and measures. The checklist provides a streamlined review process for proposed new development projects that are subject to discretionary review. The City recently announced plans to eliminate parking requirements for multifamily projects within TPAs.

Buffalo, NY. In 2016, the City of Buffalo passed the Buffalo Green Code Unified Development Ordinance, which removes minimum parking requirements for developments. Additionally, developments more than 5,000 square feet and renovations over 50,000 square feet submit a TDM plan as part of the development’s approval requirements. Developers can choose from a list of pre-defined TDM strategies or propose alternative strategies with City approval. Developers are required to pass along the TDM Plan requirements to the property owner, who must submit status reports every two years thereafter, and may also be required to implement additional strategies to meet the approved trip reductions.

Ventura, CA. The City’s Parking Management Program uses pricing to ensure a 15 percent parking vacancy rate for premium on-street parking. This discourages long-term street parking so that customers who go downtown have access to the businesses they visit. To reduce the amount of new parking needed, this program also offers shared on-site parking between land uses that have different periods of peak parking demand.

For more information please contact Krystal Ayala, Regional Planner, at (619) 699-1998 or [email protected].

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