A system of retroreflectorized traffic control channelizing devices is disclosed. The system comprises a plurality of channelizing devices, each device having a reflective member that is either white, yellow, or red in color. Those having a white reflective member are used to direct traffic from a right side of a traffic lane. Those having a yellow reflective member are used to direct traffic from a left side of a traffic lane. Those having a red reflective member are used to stop traffic for a road closure. A method of use of a system of retroreflectorized traffic control channelizing devices is also disclosed.

A system of retroreflectorized traffic control channelizing devices is disclosed. The system comprises a plurality of channelizing devices, each device having a reflective member that is either white, yellow, or red in color. Those having a white reflective member are used to direct traffic from a right side of a traffic lane. Those having a yellow reflective member are used to direct traffic from a left side of a traffic lane. Those having a red reflective member are used to stop traffic for a road closure. A method of use of a system of retroreflectorized traffic control channelizing devices is also disclosed.

The invention provides a warning sign device. The warning sign device comprises a sign body and a continuous track assembly. The continuous track assembly is disposed on the sign body.

The invention provides a warning sign device. The warning sign device comprises a sign body and a continuous track assembly. The continuous track assembly is disposed on the sign body.

A system and method are set forth for traffic warning at a road construction work zone, comprising at least one a motion sensor associated with at least one traffic cone proximate the road construction work zone for transmitting laser pulses in a direction of oncoming traffic and detecting reflected laser pulses from the oncoming traffic and in response transmitting an alert signal, and a portable alert unit for receiving the alert signal and generating a warning of the oncoming traffic

A system and method are set forth for traffic warning at a road construction work zone, comprising at least one a motion sensor associated with at least one traffic cone proximate the road construction work zone for transmitting laser pulses in a direction of oncoming traffic and detecting reflected laser pulses from the oncoming traffic and in response transmitting an alert signal, and a portable alert unit for receiving the alert signal and generating a warning of the oncoming traffic

A reflective traffic cone incorporating a plurality of reflective members attached on its outer surfaces and inner surfaces, such that the traffic cone can reflect light from a vehicle and be visible in low light conditions even when it becomes knocked over upon a road surface.

A reflective traffic cone incorporating a plurality of reflective members attached on its outer surfaces and inner surfaces, such that the traffic cone can reflect light from a vehicle and be visible in low light conditions even when it becomes knocked over upon a road surface.

An apparatus for dispensing cones onto a surface and for retrieving cones from the surface includes a cone transfer device having a tower with a platform moveable to and from a lower transfer position for dispensing cones onto the surface and for retrieving cones from the surface. The platform is movable in a vertical direction between the lower transfer position and an upper transfer position for receiving a stack of cones from a storage area and for returning a stack of cones to the storage area. The tower includes a device for holding one or more cones in an elevated position and for releasing cones onto and receiving cones from the platform in the elevated position. The apparatus may include a lamp transfer device for attaching a lamp unit to a cone when the cone is dispensed and for removing the lamp unit from the cone when the cone is retrieved. The apparatus may include a cone washing device for washing a cone when the cone is retrieved and/or when the cone is dispensed.

An apparatus for dispensing cones onto a surface and for retrieving cones from the surface includes a cone transfer device having a tower with a platform moveable to and from a lower transfer position for dispensing cones onto the surface and for retrieving cones from the surface. The platform is movable in a vertical direction between the lower transfer position and an upper transfer position for receiving a stack of cones from a storage area and for returning a stack of cones to the storage area. The tower includes a device for holding one or more cones in an elevated position and for releasing cones onto and receiving cones from the platform in the elevated position. The apparatus may include a lamp transfer device for attaching a lamp unit to a cone when the cone is dispensed and for removing the lamp unit from the cone when the cone is retrieved. The apparatus may include a cone washing device for washing a cone when the cone is retrieved and/or when the cone is dispensed.