Geoscience Reference
In-Depth Information
The authors divide this exploration into three scales: the city, the neighborhood
and the archaeological dig. Figure 2.9 shows the model's temporal output at the
city scale: it is the distribution of the number of
historical objects
existing by
temporal entities
. Such a curve reveals the various temporalities through the
irregularities: here, the first hop corresponds to the city foundation. The following
two hops, even if they may be linked to source bias, correspond to urban
restructuration phases.
Figure 2.9.
Historical objects' repartition over time (according to [LEF 12])
Always maintaining the parallel between the spatial dimension and temporal
dimension, the authors propose a chronographical representation, through an
analogy to a cartographical one. Figure 2.10 is a representation of time and of its
characteristics at the scale of the archaeological dig of the amphitheater of the city of
Tours. The slicing process corresponds to
temporal entities
that are the periods of
stability. These periods are characterized by a certain functional diversity (intensity
of gray) and are delimited by borders (vertical bars). The information of the change
rate between the two periods can be read on these borders (number of historical
objects' disappearances in upper shading and number of historical objects'
apparitions in light gray).
It is interesting to see to what extent the representations, which are associated
with this example, are far more “time” oriented than “space” oriented: they really
serve the temporalities' exploration. This illustrates well the assessment made since
