This is a thing on some large fire trucks. At least for this application it requires someone steering from the back of the trailer. See this one in Seattle for

This is a thing on some large fire trucks. At least for this application it requires someone steering from the back of the trailer. See this one in Seattle for an example. https://www.youtube.com/watch?v=fhuSwHni0jc https://www.youtube.com/watch?v=fhuSwHni0jc