Whether you’re waiting for a connection or traveling on a bus or train, RTD is focused on providing a Welcoming Transit Environment every step of your journey.

An RTD (Resistance Temperature Detector) is a sensor whose resistance changes as its temperature changes. The resistance increases as the temperature of the sensor increases.

An RTD, also sometimes called a resistance temperature device, is a temperature sensor that measures temperature by correlating the electrical resistance of a material — commonly …

Jul 28, 2025 · An RTD (Resistance Temperature Detector) is a temperature sensor that exhibits an increase in resistance when subjected to an increase in temperature. RTDs are highly …

System Map View the entire RTD system at a glance View Map in Full Screen Mode Esri, HERE, Garmin, FAO, NOAA, USGS, EPA ... +

With light and commuter rail lines to more than 50 stations throughout the metro area, where do you want to go today?

12/12 – ROUTES 555 Due to construction, the RTD bus stop at California & Walnut (Northbound) will not be available.