Guide signs are warranted at many important locations and should be used on freeways and expressways, at locations where some degree of lane-use control is desirable, and where space is not available at the roadside. The face of the extruded panels can be covered with a variety of materials ranging from a high performance reflective sheeting to a non-reflective paint. A 36 × 36 sign can be used on all other types of roadways. Generally speaking, if the road is a divided highway with a concrete barrier or median, a 48 × 48 sign will be required. 'Freeway' is a divided highway with full control of access. Depending on the size and local environmental conditions, it is often left up to a local inspector as to what thickness of. 'Expressway' is a divided highway with partial control of access. When necessary, a 6″ panel is also available. A Crossbuck sign may be used on a higway approach to a highway-light rail transit grade crossing on a mixed-use alignment, alone or in combination with other. There are varying thicknesses of aluminum material available for reflective traffic signs in the US, but the most common thicknesses used are. We use aluminum extruded panel signs, which are composed of multiple 12″ extruded panels bolted together to form the size required. Vulcan Signs Manufactures and Distributes: Roadway Marking Products for Various Roadway and Parking Facility Applications.
