Is it a bus? Is it a streetcar? No, it’s both. The Autorailer, a dual-mode vehicle, or road–rail vehicle can travel on roads and rails. The rails are used as a “guideway,” and the tires provide locomotion. Slotted wheels keep the thing on the tracks. These days most road-railers are for heavy construction, but there was a time when they were envisioned as perfect freight and commuter vehicles.
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Top image: Evans Auto-Railer, from a 1936 Life Magazine ad.
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