Modification of Driving Behavior in a Large Transport Organization: A Field Experiment

To change the driving behavior of mail-van drivers so as to encourage energy saving, a program was developed and implemented in the Netherlands Postal and Telecommunications Services (PTT). Based on empirical analysis, 3 approaches were used to influence driving behavior: providing information, providing task assignment and control, and providing feedback on gasoline consumption. The effectiveness of the program was tested in a field experiment. Attitudes, social norms, and reported behavior changed, and energy savings of more than 7% were achieved, compared with a control group. From an economic point of view, further implementation in the PTT organization could be attractive.