Temperature excursions show that goods that are transported from an aircraft to the warehouse are exposed to ambient temperature for too long, affecting the temperature of the cargo. KLM Cargo has a cool chain project that tends to gain more insight in the operational performance. With the exposure as KPI, defined as Degree-Hours, all subsequent operations are quantified and a performance value is appointed to each subsystem. The operations are not occurring in the same amount, therefore a modal and cargo split is applied to determine the exposure of a single ULD when taking into account the chance of any path and any type of cargo. All performances are compared to the performance when improvement opportunities are implemented in the system to reduce the exposure. The cost and performance rate per opportunity are put together to gain an insight in feasible improvements, showing that the use of an animal dolly can decrease the exposure on short-term.