USA: Siemens wins San Diego light rail vehicle contract September 29, 2009 | North America News The San Diego Metropolitan Transit System has ordered 57 Siemens S70 Avanto light rail vehicles (LRVs) for the San Diego Trolley. It has also reserved the option to order a further eight LRVs. The new... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password