News from IIR members: Cemafroid

Cemafroid ( is working on certification of night delivery in urban areas.
Cemafroid ( is working on certification of night delivery in urban areas.
Among possible ways of limiting traffic jams in large cities, widespread use of night delivery offers several benefits: it allows access to city centres for larger vehicles when traffic flow is limited, and it reduces the delivery time and consequently the number of trucks in cities.
It also implies an immediate drop in total energy consumption and CO2 emissions related to transport operations.
This significantly reduces the environmental impact of urban freight transport and improves air quality. If such policy were to be adopted in large cities, another consequence might be an improvement in safety due to the restricted use of trucks during the day.
The feasibility of this measure requires assessment of the noise levels generated by night delivery activities. Refrigerated transport equipment is among the noisiest because of the refrigeration units.

This has led manufacturers of temperature-controlled vehicles to develop new equipment with a maximum noise level of 60 dB(A).
This development was driven by the market and by equipment certification through the PIEK programme.
The aim of the latter is to reduce noise levels related to supply traffic, loading and unloading activities in residential areas in the evening and at night.
Experience demonstrates that silent equipment alone is not sufficient to ensure silent delivery.

A paper entitled Toward a Certification of Night Delivery in Urban Freight Transport presented during the 23rd IIR International Congress of Refrigeration held in Prague, Czech Republic, on August 21-26, 2011, proposes an original approach to certification of low noise delivery services.

Download the paper via Fridoc.