described as ultra light rail. The proposed Coventry Very Light Rail which is at-grade, low passenger capacity (60-70 people), battery powered so no overhead lines also falls into this category. A Very Light rail vehicles is described as vehicles weighing less than 1 tonne / m3. Interurban In the U.S., interurban (German ) refers to a higher-speed streetcar (tram) line – i.e. electrical railcars or trains which run both between the cities or towns (often in rural environments) on their own right-of-way, and through the city streets as trams. In the U.S., some interurban railcars constructed in the period 1900–1930 ran at extremely high speed for its time. Essentially, the classic interurbans were the light-rail lines of the day. Several advanced innovations – like streamlining, wind tunnel research and lightweight constructions – have their origin on the interurban scene, or were early adopted by companies like J. G. Brill Company, Cincinnati Car Company, and St. Louis Car Company. The fastest interurbans had a maximum service speed at 145–150 km/h, and an average speed including stops at above 80 km/h. The Cincinnati–Toledo route of Cincinnati and Lake Erie Railroad was . A few interurbans like Philadelphia and Western Railroad adapted to high speeds with double-track, absolute block signalling and without grade crossings. Others ran at (too) high speed on single-track right-of-way without block signalling – and experienced disastrous wrecks. The classic U.S. interurbans are all but gone, with two of the remaining (Norristown High Speed Line , IRT Dyre Avenue Line) having been upgraded to rapid transit specifications, and a third system (Cleveland's Blue and Green Lines) now considered to be light rail. The South Shore Line, which runs from Chicago's Millennium Station to South Bend, Indiana, has been converted to modern electric rapid-transit operation on the dense corridor between Chicago and Gary, Indiana but still runs essentially as an interurban through several small towns between Gary and South Bend. Los Angeles has a light-rail system whose lines sometimes follow the routes of the area's interurbans, although this revival commenced decades after the original interurban ceased service. The European interurbans, like the Silesian Interurbans (Tramwaje Śląskie S.A.; German Schlesische Straßenbahn) and Belgium's Coastal Tram, were (and are) more like conventional tramways, as their names indicate. Interurbans sometimes used freight railways rather than building their own track. In Australia, interurban refers to long-distance commuter trains such as the routes between Newcastle and