Summer weather conditions can create a situation where waste gives off unpleasant odours impacting local inhabitants. The temperature of waste kept underground is cooler and therefore reduces the possibility that odours will occur making a more hygienic and pleasant environment. Eradicates waste spillage a significantly reduces the associated problem of vermin.
Increasing the speed of emptying reduces your operating costs such as fuel and labour. This is in turn generates less carbon in heavily populated urban areas which already suffer from significant pollution.