 There can be many impacts caused by the building and maintenance of roads, tracks, lookouts and various types of accommodation.A study conducted by Jones  observed that species such as the Tasmanian devil and eastern quoll are more susceptible to being killed by cars after road upgrades to increase the volume of tourist traffic.There can also be direct and indirect damage to vegetation and habitats from activities such as bushwalking and horse riding, as well as an increased risk of alterations to soil characteristics and the transmission of disease.