Advantages And Disadvantages Of TDM

Prior to buying a car you want accurate information on its fuel, maintenance, repair and insurance costs. Similarly, before buying a train or airline ticket you want to know about all fees and taxes, and the ease of schedule changes. You also want information on each option’s reliability, comfort and safety

Accommodating ever-growing motor vehicle travel requires significant resources to continually expand roadway and parking capacity and provide traffic services, in addition to accident risk, pollution emissions and other undesirable impacts. Transportation policy and planning decisions affect virtually every aspect of life. Such decisions often involve tradeoffs between conflicting objectives. For example, strategies to increase vehicle

The governmental intervention should involve either taxes or subsidies, depending on the kind of externalities that exist, and that these should be applied differentially to the passengers and various kind of transports available to the public. III. TDM EVALUATION

Transportation Demand Management (TDM, also called Mobility Management) includes various strategies that result in more efficient use of transport resources. TDM evaluation requires more comprehensive analysis than normally used for transport planning because it requires determining the economic impacts of various travel changes, including changes in transport diversity and shifts in travel time, distance, destination and mode.

It will help in providing the information on the costs and benefits of different transport modes and conditions to help calculate incremental benefits and costs from various TDM strategies.

There is a broad range of TDM measures including:

 Transportation management associations: leverage public and private funds to increase the use of ridesharing and other commuting options that reduce traffic congestion and improve air quality.

 Including or improving pedestrian-oriented design elements, such as short pedestrian crossings, wide sidewalks and street

4.5 STRATEGIES TO ATTAIN TRANSPORTATION GOALS

4.5.1 HORIZONTAL EQUITY

 Planning and investments projects-resource allocations should be measured per capita, with adjustments made to account for special needs, such as extra costs to accommodate people with disabilities and to provide fare discounts for people with low incomes.

 Pricing Reforms-Automobile use is currently underpriced: a significant portion of costs are external (not charged to motorists) or fixed (not related to how much a vehicle is used), and fees seldom reflect factors that affect costs, such as time, location or vehicle type.

These include:

• Fuller cost recovery – User fees such as fuel taxes and tolls increase to reflect costs imposed. For example, fuel taxes could be increased to fund a greater portion of roadway costs, and more parking facilities should be priced.

• Weight-distance fees – Fees that reflect the roadway costs imposed by a vehicle class.

• Road Pricing – Charge directly for road use, with rates vary to reflect how roadway and congestion costs vary by location, time and vehicle type.

• Parking cash out – Allow commuters to choose cash instead of subsidized