Abstract: A multicompartmented road vehicle, e.g., a six-lane delivery truck 16, has a separate refrigerator system for each lane, governed by a separate thermostat in each case. The corresponding condensers are conveniently arranged in a bank or accumulation. A common generator, preferably supplied with a sequencing arrangement to prevent start-up overload, or casual overload, generates the electrical power to drive the refrigeration systems. The cost of initial installation is an acceptable proportion of the cost of a heavy truck, the cost of maintenance is less than for maintenance of complex valving, ducting and internal prioritizing logic systems as in interconnected refrigeration systems of the prior art, and the mass and size of the installation is again compatible with the truck size and shape. Thus the normally counterindicated provision of separate rather than shared systems has unexpected advantage.