A method for using barrier systems includes positioning a plurality of barrier systems at a location, each barrier system having: a barrier having an interior surface and an opposing exterior surface, the interior surface bounding a chamber that is adapted to receive a ballast; and a light assembly secured to the barrier, the light assembly comprising a housing having a lens that at least partially bounds a compartment, a light source at least partially disposed within the compartment, and programmable circuity in electrical communication with the light emitting device. A control device is used to communicate wirelessly with programmable circuity of each barrier system after the barrier systems are positioned at the location so that data is transferred between the control device and the programmable circuity of each barrier system.

The present invention is directed to a pathway alerting system, comprising: at least two alerting devices (30), disposed distantly from each other, in line, along a pathway (100), each alerting device (30) comprising: an alarm; a sensor (35) for detecting a transient vehicle; a communication module with at least one adjacent alerting device (30); and a mechanism for: upon detecting a transient vehicle by the sensor (35), instructing via the communication module at least one adjacent alerting device (30) to turn on its alarm.