In recent years, different techniques to address the problem of observability in traffic
networks have been proposed in multiple research projects, being the technique based on
the installation of automatic vehicle identification devices (AVI), one of the most
successful in terms of results but to in turn, complex in terms of its combined use with
other methods. Most of the current methods do not consider the possibility of installing a
series of plate scanning devices in the elements of a network (nodes, links), such that they
allow us to obtain a better definition of the O-D matrix and obtain a better set of data for
the analysis and estimation of traffic flows for different scenarios. With these antecedents,
a new methodology is proposed that jointly considers: 1) a device location model for a
given traffic network according to criteria established by the analyst and, 2) a model that
establish the best set of routes to be considered in the estimation step.
An example of the application of this methodology for a real study network in Ciudad Real
is shown, where a sensitivity analysis is applied to test the influence of a set of relevant
variables
