Nanotechnologies in transport engineering are particularly related to the creation of different protective coatings as a result of particle flows acting upon structural materials in vacuum. The nature of this effect depends on the type of particles (electrons, ions, atoms, molecules), on their energy and chemical activity as well as product materials (metals, semiconductors, dielectrics). The work contains the results of experimental research on the creation of nanostructured wear-resistant coatings by ion-plasma method. It represents the results of investigating different physico-mechanical properties and 3D parameters of surface roughness of coating materials.