Whether in a classroom or at the helm, critical decisions can be made quickly and with confidence with the aide of ROADrule. The USATONS ROADrule Tool by Weems & Plath takes a large amount of complex information and makes it easy to understand for quick to reference to by identifying the most common U.S. aids to navigation, rules of the road, and maneuvering and warning signals for U.S. waters. This simple to use identification tool shows the actual view of maritime buoyage systems with corresponding chart symbols. It describes bridge lighting and Intracoastal Waterway markings.
ROADrule is constructed of durable two-sided black PVC. Its design is similar to a slide-rule. The various buoyage markers are drawn in color to match the chart symbol. This quick reference tool is a great value, is stored in a vinyl sleeve and fits nicely in a chart table. Dimensions: 16 in x 5 in.