The GPS/GIS technology can also be implemented
in the case of dangerous goods transportation
(e.g., fuels, chemicals etc.), where the
positioning of vehicles together with the use of
digital maps provides useful information to the
user (e.g., organisation, company) for the safe
routing and scheduling of the fleet [39]. The provision
of road assistance together with the provision
of stolen vehicle tracking services are among
the applications of the GPS technology in the field
of transportation. Guidance systems for earthwork
vehicles in highway engineering (e.g., bulldozers)
is also an application of GPS technology.
In this case, the position of the vehicle is calculated
with the aid of a GPS and is compared, at real
time, to the terrene digital model in order to inform
the driver about the height of the material
which must be added or removed at each point