Automatically inspections of road and rail tunnels


Currently, inspections of road and rail tunnels are carried out manually. CARTIF and Geocisa have studied how to implement technologies that allow inspecting automatically tunnels to achieve its preventive maintenance, developing a system which is able to organize the collected data.

The project aims to know the real tunnels state and detect defects or deficient status so that the security of this type of infrastructures could be improved and therefore to increase its lifespan as well as decreasing the economic costs.
To automatize this process, the researchers have combined and implemented two non-destructive techniques: thermography and reflectancy.
SITEER project is co-funded by MINECO through the INNPACTO 2012 call.


  • The project goal is to develop a pre-industrial system to tunnels smart supervision based on the use of 3D laser scanner along with emissivity and reflectance analysis.


  • Characterization of the tunnels to supervise.
  • To Investigate how to use low cost and high-speed acquisition laser scanners.
  • To study the difficulties regarding the use of the reflectivity and emissivity indexes.
  • Integration of both foresaid technologies into a mobile system.

Achieved results

Development of an automatic inspection visual system to detect defects on tunnels surface based on the combined use of laser scanner and thermography.




Total budget: 1.054.078,10 €
Contribution: 390.415,55 €
Duration: 2012 – 2015


David Olmedo Vélez

Project manager at Cartif

Industrial and Digital Systems Division


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