Road traffic related data generating system for e.g. lorry, has warning unit that produces warning to be transmitted to monitoring center through radio frequency unit according to referential data lists of storage unit

摘要

The system has a computer (16) with a warning unit (59) that produces warning to be transmitted to a monitoring center through a radio frequency unit (17) according to referential data lists stored in a storage unit (61). The storage unit stores referential speed corresponding to regulation speed authorized on lanes. The warning is generated by comparing the real speed of a vehicle with the referential speed.