The first line, the Mesa Corridor, began operating in the fall of 2014.[1] This line is 8.6 miles (13.8km) long and uses 22 purpose-built curbside stations with shelters, ticket vending machines for pre-boarding payment, and real-time arrival information. Two more corridors, Dyer (Northeast) and Alameda (Mission Valley) Corridors became operational in October 2018. The Montana Corridor, which serves the Eastside, opened on November 6, 2022.[2]
Description
Each Brio corridor contains at least two transfer centers, where passengers can transfer between Brio and local buses. Outside of transfer centers, stops consist of curbside shelters with the following amenities:[2]
The vehicles operate in mixed traffic. Signal prioritization is used to lengthen green traffic signals and reduce delays. The frequency of Brio buses range from 10 minutes during weekday rush hours to 15 minutes mid-day from Monday to Friday, 20 minutes on Saturdays and 25 minutes on Sundays. Stations are located about a mile apart. Passengers can buy a one-way trip, a day pass, a weekly pass or a monthly pass from the ticket vending machine located at all permanent Brio stations. To prevent fare evasion, Brio Ambassadors will be monitoring and requesting proof of payment during trips on Brio.[2]
Over 50,000 people use Brio every month, which has meant that approximately 20 tonnes of carbon dioxide was not emitted in the first year of its operation. Brio has also inspired new businesses; around 20 have been launched since Brio was launched as of 2016.[4]
Naming the system
Sun Metro hired PAVLOV, a marketing communications company, to develop the system name and logo. The word Brio is Spanish for excitement, verve and energy.[2]
The logo was designed to complement the circular nature of Sun Metro's current logo. The ‘b’ and ‘o’ in Brio are a graphic element that can be used to extend the identity of the RTS system. The movement within the logotype references the wheels on the vehicles. In addition to the name and logo, Sun Metro selected a color palette and graphic standards to make Brio stations and buses distinctive and easily recognizable.
Fares
Fares for Brio are the same as standard fare on other Sun Metro lines.[2] Currently, the standard fare is $1.50, $1.00 for students, and $0.30 for seniors 65+, disabled and Medicare. Sun Metro also offers daily, weekly, and monthly passes for each fare category.[5]
On February 11, 2025, bus 20602, a New Flyer Xcelsior CNG powered articulated bus, fell from a hydraulic lift, puncturing the fuel tank and exploding.[6][7] 48 fire units and over 100 firefighters were dispatched to handle the fire. Two workers were killed, and 11 others were injured. The building sustained major damage, with parts of the roof and walls collapsed. [8] Four buses surrounding 20602 in the facility were also destroyed by the fire, and eight other buses sustained some damage.[6]
Sun Metro publicly released the surveilance camera footage of the explosion in October 2025.[9]
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