Two diesel-hybrid Scania tractor units equipped with rail-style electric pantographs are now running on a public road in Sweden as part of a two-year technology trial. Siemens has installed a two-kilometre overhead electric power line designed to power the trucks on the eHighway, north of Stockholm, and the company expects the system to "prove itself in practice" by 2018. eHighway was developed by Siemens for densely populated short-haul truck routes. It includes intelligent pantographs, designed to manage contact with power lines at speeds up to 90kph.
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