A pressure group that represents the temperature-controlled sector has called on the European Union to allow a 20cm increase in trailer lengths. Transfrigoroute believes that cold air is currently unable to properly circulate around pallets in a regular trailer, leading to hot spots in the load which potentially pose a hazard to health, especially when foods and medicines are involved.

Several trials of longer trailers are currently taking place on the Continent, with trailers of up to 15 metres being used in some member states.