State and regional government agencies and private
engineering consulting firms are responsible for conducting most
traffic counts. Although private citizens can certainly count
vehicles using pencil and paper, most vehicle counts involve costly
automated equipment and the permission of a roadway owner or operator.
The MPO counts are primarily those of the Massachusetts Highway
Department, which uses its own equipment and staff as well as those of
regional planning agencies across the state. The MPO collects
some turning movements (see the section on
what kinds of traffic counts
there are) itself, and may also warehouse paper copies of traffic
counts from other souces.
See the
Other Resources
section of this Web site for more details.