In 2017, the AMT was dissolved and replaced by two newly created organizations, the ARTM and the Réseau de transport métropolitain (RTM). Its planning mandate went to the ARTM while the operation of the various commuter rail lines across the Greater Montreal became the responsibility of the RTM. Also known as Exo, the latter also acquired oversight of the public transport agencies of Montreal, Laval, and Longueuil.[2]
The ARTM also is responsible for all Park and ride lots in the Greater Montreal region. It runs 61 park-and-ride lots,[3] many that are connected to either metropolitan bus terminuses, STM Metro stations, or Exo commuter rail stations.
In addition, the agency also organizes carpooling, offering unloading spaces near public transit services in several of its park-and-ride lots, which allow for transfers to the bus, Metro or commuter train.[4]
Study a major transit solution for the Grand Sud-Ouest area in Montreal. The project could possibly consist of a new light rail line or an extension of the Green Line into LaSalle, Lachine and Dorval.[7]
Study a major transit solution to replace the cancelled REM de l'Est project, named PSE. In January 2023, it was revealed that the ARTM was planning on proposing a 21-kilometre light rail line consisting of 22 stations, at a cost of $10.4 billion.[8]
