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Transportation engineering or transport engineering is the application of technology and scientific principles to the planning, functional design, operation...

A ballast tank is a compartment within a boat, ship or other floating structure that holds water, which is used as ballast to provide hydrostatic stability...

In the United Kingdom, a driving licence is the official document which authorises its holder to operate motor vehicles on highways and other public roads...

Road signs in Greece are regulated by the Ministry of Transport and the Hellenic Traffic Police, according to the Greek Highway Code. Signs follow the...