You can search for learning objects by these fields. You've reached this digital library for science, mathematics, engineering and technology education from a commercial search engine. In order to serve you better, please re-enter your search terms in the form below and select the 'Search' button. All Rights Reserved. This web-based software teaches the user concepts about using tolls to reduce congestion.
Most people believe that congestion is worse now than it has ever been.
In fact, from 1960 to 1980 the number of people driving to work in the U.S. doubled. First, congestion results in longer travel times and hence increased fuel costs and driver costs. Second, congestion results in more variability in travel times, making it more difficult to schedule pick-ups and deliveries. In short, congestion makes the freight transportation system less efficient and this makes the industries that they serve less efficient. This leads to increased prices to consumers and lower profits to firms.