Developers are being asked to meet a new requirement in these days of traffic congestion and mobility issues. In addition to completing a traffic impact study in order to get site plan approval, local planning boards want a Transportation Demand Management (TDM) plan. Often the planning board and or developer will offer to establish a TDM in return for more favorable lot coverage or parking requirements.
A Transportation Demand Management (TDM) Program is a series of related initiatives aimed at reducing the number of auto commute trips taken by employees, consumers and residents accessing the site. And the TDM is not only for permitting; some municipalities are requiring that the project incorporate a TDM coordinator to review transportation mobility during the life of the development. This position is fully dedicated to working on the travel options program of the specific project.
Transportation Demand Management Coordinators are primarily responsible for leading and coordinating the travel options program, establishing traffic and pollution-reducing programs at the worksite while developing cooperative relationships with stakeholders such as regional transit authorities, regional planning associations, tenants, area businesses and municipal transportation departments.
A travel options program would consider recruiting employer partners and facilitating implementation of initiatives to reduce drive alone commuting to work and to sites that are destinations for consumers such as retail or entertainment establishments. The program would collect and monitor travel-based statistics; monitor monthly/quarterly/annual goals and analyze data to identify Transportation Demand Management opportunities and to assess program effectiveness.
In a city like Portland Maine, it is the business hub of the state and is geographically located on a peninsula. Portland TDM programs would be based on the desire to reduce congestion, greenhouse gas emissions and air pollution while minimizing the number of parking garages that are developing on land with much higher land-use value.
These objectives will be achieved through the implementation of transportation initiatives that reduce car dependency and encourage modal shift. Some examples of successful TDM options include:
- Employee Auto Trip Reduction Program in partnership with a car-sharing organization;
- Discounted annual bus (and perhaps a future rail) transit passes for all employees;
- Organization of events such as Bike to Work Week and Rideshare Week;
- Development of a Guaranteed Ride Home policy;
- Increased availability of fleet vehicles;
- Partnerships with the City’s main employers
- Generation of interest and excitement in alternative transportation modes such biking and walking;
- Development of safe non-motorized routes to places of work, recreation, schools etc.
A good TDM Program complements existing municipal policy and established developments by providing a focus for future transportation demand initiatives, including an update to the City’s Master Transportation Plan.