I tried using road layer from ArcGis but Im confused on the procedure. Can anyone provide me with a video on how to produce these roads layer in Idrisi or import it from ArcGis? I earlier digitized the roads and converted it to raster using "Initial" in Idrisi but after using the layer as "Road Basis layer", it gives an error that "the road layer must have a legend" Please I sincerely need assistance.