In North America, Australia and other countries, the termconsist (/ˈkɒnsɪst/KON-sist) is used to refer to the rolling stock comprising a train, a list containing specific information for each car of a train, or a group of locomotives.[5][6]: 1‑129
In the United States, the termrolling stock has been expanded from the older broadly defined "trains" to include wheeled vehicles used by businesses on roadways.[7][8][9]
The wordstock in the term is used in a sense ofinventory. Rolling stock is considered to be aliquid asset, or close to it, since the value of the vehicle can be readily estimated and then shipped to the buyer without much cost or delay.[10][11] The term contrasts with fixed stock (infrastructure), which is a collective term for thetrack,signals,stations, other buildings, electric wires, etc., necessary to operate a railway.
A large number of companies and government agencies in many countries, past and present, have built rolling stock. Thelist of rolling stock manufacturers covers many of the largest ones.