At present there is no practical way to monitor the condition of the subgrade. Our innovative Smartroad Tools technology solves this problem. It consists of a smart geofabric which is embedded during construction or reconstruction, plus a sensor that provides an easy-to-use and inexpensive means to verify the integrity of the subgrade on a routine basis over a wide area. The technology will allow potential disaster areas to be located and repaired before a collapse occurs. It can also produce significant savings in road and rail maintenance by indicating where preventative mainenance is most needed.