Transportation Statistics and Microsimulation


Transportation Statistics and Microsimulation

The basic concept of transportation—the movement of goods and people
over time and space—has changed little since the Romans developed their
transportation system over two thousand years ago. Today we have far
more extensive transportation infrastructure systems that include roads,
waterways, railways, and air transport options, and much more sophisticated
technology than in the past, but the overall objective of transportation
engineers remains the same—to plan, design, construct, and maintain
the various transportation modal systems in the safest and most efficient
manner possible. To achieve this goal, transportation professionals have to
be able to answer fairly sophisticated questions, such as:
Which pavement is most economical for a given situation
What roadway geometry is safer
What traffic control device works best
Where should we invest our limited resources to produce the most
favorable outcome
To answer these types of questions, the engineers and planners identify
a clear hypothesis, collect relevant data (either through experiment
or observation), and develop reasonable conclusions from the data, all of
which will require the transportation professional to have a solid grounding
in statistics. This text is designed to provide the necessary background
knowledge to make informed transportation-related decisions.

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