The tramodular is a form of public transport made of small autonomous modules taking current from a central rail.  They can circulate without a driver, and can be attached to others to form a convoy.  The bottom of the vehicle is a metal platform on which a wooden chassis is stuck using vegetal resin.  Passenger boarding takes place from a road parallel to the flow of traffic.  The vehicle stops only on demand and if there are still places available, without slowing down other traffic.  Coloured lights show the different destinations.  The vehicles are fitted with aerials to transmit information.

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