A system whereby vehicles travelling on unmapped roadways, such as logging or industrial roadways, may initially record a linear distance electronic image of the roadway being travelled, based upon position data received and stored from a remote satellite global positioning system, and, using the position data, to continuously broadcast a radio frequency signal identifying that position on that roadway and receive from at least one other suitably equipped vehicle a continuously broadcast radio frequency signal of the other vehicles' coordinates so that a suitable visual or auditory signal may be activated to warn the operator of the vehicles when the vehicles close within a predetermined range.