Transportation Demand Management

Kendall T Station Walkers

What is Transportation Demand Management?

The city uses Transportation Demand Management (TDM) strategies to encourage changes in travel behavior to allow the city and the economy to grow in accordance with our environmental and livability goals.

Benefits of TDM 

  • Cost effectiveness: Cost-benefit analyses often show that implementing TDM strategies is less expensive than expanding roads and parking facilities. 
  • Environmental quality and livability:TDM strategies reduce the negative impacts from driving including congestion, noise, local air pollutants and greenhouse gas emissions. 
  • Flexibility:TDM strategies can be put in place quickly and tailored to particular groups. 
  • Equity: Physically or socially disadvantaged people stand to benefit the most from TDM measures that fairly allocate resources to different groups, especially non-drivers. 
  • Economic transparency: Many TDM strategies correct market distortions by revealing the true cost of people’s travel options. 
  • Sustainable transportation:TDM strategies encourage efficient land use, which supports walking, biking, and riding transit. 

TDM Incentives

A combination of TDM incentives to walk, bike, take transit and rideshare, and disincentives to drive alone are required in Cambridge for larger projects and projects that expand parking. These incentives include, but are not limited to:

  • Transit subsidy
  • Free shuttle bus
  • Bus shelter
  • Market-rate parking fee charged directly to employees or patrons
  • Daily parking charge available for occasional drivers instead of monthly parking pass
  • Bicycle parking above minimum zoning requirement
  • Shower/locker
  • Financial incentive for walking or biking
  • Emergency ride home
  • Car/vanpool matching
  • Priority/discounted HOV parking
  • Transportation information
  • Hiring of Cambridge residents
  • On-site TDM coordinator
  • TMA membership

These requirements make Cambridge a better place to live, work and play. Safer streets, a bustling economy and a protected climate make it easier to rent or sell your space in Cambridge.

More about the City’s TDM Programs

For developers: PTDM Ordinance.

For residents: CitySmart.

For businesses: TDM Outreach


Click here for the Online TDM Encyclopedia

For more information

For more information on Transportation Demand Management, contact Stephanie Groll at 617/349-4673 or