[2] All of the stations are open-air structures featuring passenger canopies for protection from adverse weather conditions.
[4] All stations feature three elements according to the criteria: the platform, its transition plaza and the intermodal passenger transport available to and from the facility.
[5] They include independent works as well as pieces incorporated into the canopies, columns, pavers, windscreens, fencing and landscaping.
[16] Rail services used a zone-based fare system until 2024, where passengers were charged based on the number of zones through which they traveled.
As of 2019[update], three RTD stations have been removed from the system: 29th & Welton, 14th & California, and 14th & Stout, all on the D Line in Downtown Denver.