Guide to Calculating Mobility Management Benefits Victoria Transport Policy Institute
Introduction Mobility Management (also called Transportation Demand Management or TDM) refers to policies and programs that change travel behavior to increase transport system efficiency (Schreffler 2000; Cairns, et al. 2004; USEPA 2004; VTPI 2006). Table 1 lists various mobility management strategies. These strategies cause various types of travel changes including shifts in mode (from driving to walking, cycling, ridesharing, public transit, etc.), destination (closer rather than more distant services), time (from peak to off- peak), and frequency (consolidating trips and substituting telework for physical travel). Some increase land use accessibility (such as locating services closer to residential areas).
Mobility Management Strategies (VTPI, 2006)
Walking & cycling improvements
Rideshare programs HOV priority Flextime Carsharing
Congestion pricing Distance-based fees
Commuter financial incentives
Parking pricing Parking regulations Fuel tax increases
Transit oriented development
Parking management Carfree planning
Commute trip reduction programs
School and campus transport management
Freight transport management
Tourist transport management
Taxi service improvements Guaranteed ride home
Transport planning reforms
This table lists various mobility management strategies. Many include subcategories.
There are many justifications for mobility management. It is a cost effective approach to reducing problem such as traffic congestion, pollution emissions or inadequate mobility for non-drivers. It can reduce costs to governments and developers. It can support strategic planning objectives such as urban redevelopment, openspace preservation, energy conservation and economic development. It includes strategies that users value such as telework and nonmotorized transport improvements. Some travel changes improve public fitness and health. Many mobility management strategies are market reforms that correct existing market distortions and so increase economic efficiency.
However, conventional transportation planning tends to focus on just one or two of these benefits, such as congestion or pollution reductions, and so tends to undervalue mobility management. More comprehensive analysis, which considers a broader range of impacts, can justify greater implementation of mobility management solutions. This paper provides guidance for comprehensive economic evaluation of mobility management policies and programs, to help identify the optimal approach to improve transportation.