… warehouses, dock areas or airports for short distance transport of goods; tractors of the type used on railway …
Explanatory notes
… as follows : (1) Their construction and, as a rule, their special design features, make them unsuitable for the … and tail lamps, turn signal lamps), and the suspension (springs), of a kind required for road vehicles. (2) Their top speed when laden is generally not more than 30 to 35 km/h. …