Service regularity (DetectIA) Another service quality challenge: train frequency. One of our innovations, DetectIA Voies de service (DetectIA – service tracks), detects the presence of passengers remaining on trains at the terminus. Currently deployed on metro line 14, the system relies on artificial intelligence algorithms and computer-assisted vision. What are its advantages? DetectIA reduces the impact of operations at the terminus, prevents traffic disruptions and ultimately makes the network run more smoothly. Its technology can be easily replicated on automated lines, and in the long run, has the potential to benefit all lines equipped with built-in cameras.