Sun Tran

Not to be confused with ABQ RIDE, formerly known as SunTran.

File:Sun Tran logo 2009.svg
Founded	1969
Headquarters	3920 N. Sun Tran Blvd
Locale	Tucson, AZ
Service type	bus service, paratransit
Routes	43 (30 regular & 13 express)
Hubs	3
Fleet	252 buses
Annual ridership	20,352,101 (FY 2013)
Fuel type	Biodiesel, Biodiesel-Urea, CNG
Operator	Transdev
Website	suntran.com

Sun Tran is the public transit system serving the city of Tucson, Arizona. Sun Tran traces its history to 1905, when the Tucson Rapid Transit Company assumed operations of the horse-drawn streetcar system in town, converting it to electric streetcars. By the 1930s, the streetcar lines were converted to buses. The City of Tucson acquired Tucson Rapid Transit in 1969. The system was renamed Sun Tran in 1975. A separate company, Old Pueblo Transit, which served primarily Tucson's South Side, was acquired from Emery C. Johnson by the city of Tucson in 1978 and its operations folded into Sun Tran. Sun Tran services about 20 million passenger trips annually to destinations in and around Tucson. A 100 percent of the fleet utilizes clean-burning fuels, such as compressed natural gas (CNG), biodiesel, and hybrid technologies.

Awards

Sun Tran won the America's Best Transit System award for 1988 and 2005 from the American Public Transportation Association in the category of 4 to 30 million annual passenger trips. Also, Sun Tran was awarded as the Arizona's Best Transit System for 2004 and 2012.

Fares

The basic fare is $1.50. Reduced fare for low-income, persons with disabilities, seniors 65 years and older, and Medicare cardholders is $0.50 (with a valid SunGO ID & card). The express bus fare is $2. No fares apply to kids under 6 with fare-paying rider, limit 3. All fares can be paid with a SunGo card, which utilises smart card technology, and can be loaded with cash value or passes. Day passes ($3.50) and 30-day tickets are available. The University of Arizona provides discounted passes for eligible students, faculty and staff through the UA's Parking and Transportation Services.

Fleet

Current fleet

Sun Tran has an active fleet of 252 buses.

Builder	Model	Year	Length	Engine/ Transmission	Fuel	Number(s)	Quantity	Notes
Gillig	G20D102N4 Low Floor	2005	40'	Detroit Diesel Series 50 EGR 8.5L Allison B400R5 Gen-III	B5 Biodiesel	2501-2538	38	These buses were the first low-floor buses in the Sun Tran fleet, excluding the 1994 Orion II buses. They were also the first biodiesel-powered buses in the fleet. The buses have all forward-facing seating with the exception of seats in the low-floor section of the bus on the passenger side. Buses 2537 and 2538 have the same seating configuration as the Gillig 2006 buses.
Gillig	G20D102N4 Low Floor	2006	40'	Cummins ISC 8.3L Allison B400R5 Gen-III	B5 Biodiesel	2601-2612	12	These buses have a different seating configuration compared to the 2005 Gillig buses, as seats are all arranged lengthwise (except for the last row of seats). This was done to reduce vandalism that has been caused to bus windows and the interior.
Gillig	G20D102N4 Low Floor	2007	40'	Cummins ISL 8.9L Allison B400R5 Gen-IV	B5 Biodiesel	2701-2718	18	These buses are similar to the 2006 Gillig buses but have only one wheelchair ramp (at the front), and 8 forwards facing seats (in addition to the last row of seats) in the rear section. These buses also have a different exhaust pipe and air conditioning unit than the other Gillig buses.
Gillig	G20D102N4 Low Floor	2008	40'	Cummins ISL 8.9L Allison B400R5 Gen-IV	B5 Biodiesel	2801-2811	11	Similar to the Gillig 2007 buses, except for the upper windows.
Gillig	G20D102N4 Low Floor BRT	2008-09	40'	Caterpillar C9 ACERT 9.3L ZF Ecomat 4 6HP594C	B5 Biodiesel	2901-2946	46	These buses, labeled "Sun Express", are used on express routes 101X-312X, and occasionally as shuttles for special events. Features include low floor, head rests, reclining seats, and heat resistant windows.
Gillig	G20D102N4 Low Floor	2009	40'	Cummins ISL 8.9L Allison B400R5 Gen-IV	B5 Biodiesel	2947-2950, 3001-3010	14	The 29XX buses (known as transition buses) are Low Floor, not BRT, and feature head rests and reclining seats. The rest (3001-3010) are regular Low Floor buses.
Gillig	G20D102N4 Low Floor	2009	40'	Cummins ISB6.7 Allison EP40 Gen-IV Hybrid System	B5 Biodiesel-Electric Hybrid	3000	1	First hybrid bus introduced in 2010. It featured a promotional livery until 2014 when it was painted with the same livery as the other regular buses. This bus is run on route 5, which runs between the intersection of Sabino Canyon and Tanque Verde roads and the Pima Community College West Campus.
Gillig	G20D102N4 Low Floor	2011	40'	Cummins ISL9 Allison B400R6 Gen-IV	B5 Biodiesel-Urea	3011, 3101-3119	20	These buses run with a blend of Biodiesel-5% Urea.
Gillig	G20D102N4 Low Floor	2012	40'	Cummins ISL9 Allison B400R6 Gen-V	B5 Biodiesel-Urea	3120-3156	37	Similar to Gillig 2011 buses.
Gillig	G20D102N4 Low Floor	2012	40'	Cummins ISB6.7 Allison H 40 EP Gen-V Hybrid System	B5 Biodiesel-Electric Hybrid	4001-4010	10	New hybrid buses placed in service at the end of December 2012.
Gillig	G20D102N4 Low Floor	2014	40'	Cummins ISL G280 Allison B400R Transmission	CNG	3201-3224	24	The majority of the buses will go into service by the end of August. These new buses will eventually replace the 14-year-old Nova buses.
Gillig	G20D102N4 Low Floor	2014	35'	Cummins ISL G280 Allison B400R Transmission	CNG	3225-3229	4	These new CNG buses are smaller (35-foot-long compared to the standard 40 feet) and have a total of 30 seats. These will replace the 14-year-old Nova buses.
Gillig	G20D102N4 Low Floor	2014	40'	Cummins ISL G280 Allison B400R Transmission	CNG	3230-3245	16	New CNG buses placed in service to replace the old CNG buses.

Retired Fleet

Note that this is by no means a complete listing of retired vehicles that have operated for Sun Tran and/or its predecessors.

Builder	Model	Year	Length	Fuel	Number(s)	Quantity	Notes
Yellow Coach	Model 733	1937	30'	Gasoline	14-15	2	These buses were withdrawn after World War II. The engine was located in the front and they sat 21 passengers.
Yellow Coach	Model 733	1938	30'	Gasoline	16-17	2	These buses were identical to the 1937 Model 733 buses.
Yellow Coach	Model 1204	1939	30'	Gasoline	18-22	5	These buses had a rear engine and sat 24 passengers.
Yellow Coach	Model 1204	1940	30'	Gasoline	23-26	4	These buses were identical to the 1939 Model 1204s.
Ford	Model 69B	1941	30'	Gasoline	27-31	5	These buses were built for World War II.
Ford	Model 69B	1942	30'	Gasoline	32-36	5	These buses were built for World War II.
Ford	Model 69B	1943	30'	Gasoline	37-41	5	These buses were built for World War II.
Ford	Model 69B	1944	30'	Gasoline	42-46	5	These buses were built for World War II.
Ford	Model 69B	1945	30'	Gasoline	47-49	3	These buses were built for World War II.
Ford	Model 69B	1946	30'	Gasoline	50-55	6	These buses were withdrawn from service in 1955.
Twin Coach	41-S "Art Deco"	1946	35'	Gasoline	101-106	6	These buses were some of the earliest to operate in Tucson. All were withdrawn in 1968.
Twin Coach	41-S "Art Deco"	1947	35'	Gasoline	107-112	6	These buses were identical to the 1946 Twin Coach buses.
Twin Coach	34-S "Art Deco"	1948	30'	Gasoline	113-115	3	These buses were withdrawn in the late-1960s. Some were converted to school buses before that.
GMC	TDH-4509 "Old Look"	1951	35'	Diesel	201-206	6	These buses were retrofitted with A/C in the late-1950s. They were withdrawn from service in the 1970s.
GMC	TGH-3101 "Old Look"	1951	30'	Gasoline	121-126	6	These buses were operated by the Old Pueblo Transit Company, which was the transit agency for South Tucson.
GMC	TDH-4509 "Old Look"	1952	35'	Diesel	207-215	9	These buses were similar to the 1951 TDH-4509 buses. All were withdrawn in the 1970s.
GMC	TGH-3101 "Old Look"	1952	30'	Gasoline	127-129	3	These buses were operated by the Old Pueblo Transit Company and were withdrawn in the 1960s.
GMC	TDH-4512 "Old Look"	1953	35'	Diesel	216-218	3	These buses were retrofitted with A/C in the late-1950s.
GMC	TGH-3102 "Old Look"	1953	30'	Gasoline	130	1	This bus was operated by the Old Pueblo Transit Company.
GMC	TDH-4512 "Old Look"	1957	35'	Diesel	220-222	3	These buses were retrofitted with A/C in the late-1950s.
GMC	TDH-4512 "Old Look"	1959	35'	Diesel	223-225	3	These buses were retrofitted with A/C in the early-1960s.
GMC	TGH-3102 "Old Look"	1959	30'	Gasoline	131-133	3	These buses were operated by the Old Pueblo Transit Company and were withdrawn in the 1970s.
GMC	TGH-3102 "Old Look"	1960	30'	Gasoline	134-136	3	These buses were similar to the 1949 TGH-3102 buses but only had a single door. They were withdrawn from service in 1974.
GMC	TDH-4517 "New Look"	1962	35'	Diesel	228-231	4	These buses were the first in Tucson to be built with air conditioning, and were also the first GMC "New Look" buses in service. They were withdrawn from service in the early 1980s.
GMC	TDH-3501 "Old Look"	1966	30'	Diesel	140	1	Although this bus was built in 1966, it had the "Old Look" design. It was built for Old Pueblo Transit Company and withdrawn from service in the late-1970s.
GMC	T6H-4523A "New Look"	1972	35'	Diesel	7201-7211	11	These buses were the first to be ordered by the city of Tucson.
GMC	T6H-4523A "New Look"	1973	35'	Diesel	7312-7321	10	These buses were identical to the 1972 GMC New Looks.
Flxible	45096 "New Look"	1973	35'	Diesel	7322-7331	10	These buses were the first Flxible buses to enter service in Tucson. They were withdrawn from service in the 1990s.
GMC	T6H-4523A "New Look"	1974	35'	Diesel	7402-7403	2	These buses were ordered by an operator in Texas but ended up in service in Tucson. They were renumbered from 1402-1403 and were withdrawn from service in the mid-1990s.
GMC	T8H-5307A "New Look"	1974	40'	Diesel	1474-1479, 1481, 1484, 1488	9	These buses were delivered new to Tucson but were actually built for various transit agencies across the United States who did not take up these buses. They were temporarily operated in Tucson from 1974-1978, when they were replaced with AM General buses. 1475-1478 were sold to Phoenix Transit System and were withdrawn in 1989, while the rest were sent to other operators. These were the first 40-foot-long (12 m) buses in Tucson.
Flxible	45096 "New Look"	1975	35'	Diesel	7532-7563	32	These buses were the first to be built for Sun Tran (along with the 1975 AM General 9640-8 buses) and featured a different livery from the red and yellow that is featured on buses today. All of these buses were withdrawn in the mid-1990s.
AM General	9640-8	1975	40'	Diesel	5501-5512	12	These buses were the first to be built for Sun Tran (along with the 1975 Flxible 45096 buses), and featured a different livery from the red and yellow that is featured on buses today. All of these buses were withdrawn in the mid-1990s.
Flxible	35096 "New Look"	1976	30'	Diesel	7664-7684	21	These buses were built for Old Pueblo Transit, which served the city of South Tucson. Originally, these buses were numbered 5050-5070 but after OPT was taken over by Sun Tran in 1978, these buses were renumbered to 7664-7684. All of these buses were withdrawn in the mid-1990s.
AM General	10235B	1977	35'	Diesel	7764-7775	12	These buses were all withdrawn by 1997.
AM General	10240B	1978	40'	Diesel	5713-5724	12	These were the first buses painted in the red and yellow Sun Tran livery. All of these buses were withdrawn by 1997.
GMC	T8J-204 "RTS-04"	1981	40'	Diesel	8101-8119	19	These were Tucson's first RTS buses. They featured rollsigns and frameless windows. All were withdrawn from service in 2000.
GMC	T8J-204 "RTS-04"	1986	40'	Diesel	8601-8613	13	All of these buses were withdrawn from service in 2000.
GMC	T8J-206 "RTS-06"	1986	40'	Diesel	8614-8629	16	These buses were similar to the earlier 1986 GMC buses but were built as RTS-06 models rather than RTS-04 models. All were withdrawn from service in 2000.
Orion Bus Industries	02.501	1994	25'	CNG	9470-9475	6	These buses were powered by CNG and were withdrawn in the early 2000s.
TMC	T80-206 "RTS-06"	1989	40'	Biodiesel	8930-8984	55	Only 8 buses of various numbers remained in the fleet until May 2008 were mostly used on express routes. Most of this type was retired in the fall of 2005 with the arrival of the 2005 Gilligs. These buses were formerly powered by diesel.
Neoplan USA	AN440	1991	40'	Biodiesel	9101-9125	25
Neoplan USA	AN440	1993	40'	Biodiesel	9326-9340	15	These buses were formerly dual-fueled and could run on diesel or CNG. They are identical to the 1991 Neoplan buses.
Neoplan USA	AN440	1994	40'	Biodiesel	9441-9469	29	These buses were formerly dual-fueled and could run on diesel or CNG. They have Luminator Mega:MAX flip-dot signs and a different A/C unit compared to the other Neoplan buses. The last ones in service were retired from the active fleet in 2012 with the arrival of the new 2012 Gilligs.
New Flyer	C40HF	1996	40'	CNG	9676-9694	19	These buses were the first purely CNG-powered buses in the Sun Tran fleet. They also were the first buses to feature automatic stop announcements and hard seats throughout the entire bus (rather than just in the rear). These were withdrawn in 2011 when the new Gillig 2011 buses arrived.
New Flyer	C40HF	1997	40'	CNG	9701-9725	25	These buses are similar to the 1996 New Flyer buses but feature grey interior flooring and sidewalls rather than the orange interior found on the 1996 buses. Retired in Fall 2012 with the arrival of the 2012 Gillig buses.
Nova Bus	40102CNG "RTS-WFD"	2000	40'	CNG	2001-2045	16	These buses originally featured Luminator LEDot front signs, but they were replaced with Luminator Horizon signs in 2005. 24 of these buses were retired from the active fleet on July 2014. The other were withdrawn in 2015.

Current Routes

Sun Tran operates 30 regular routes and 13 express routes, as well as 10 Sun Shuttle routes, a neighborhood transit service. Most regular routes provide service from 6am to 11pm. A few routes provide service until midnight. Sun Tran does not provide overnight service.

Regular Routes

Route No.	Route Name	Terminals			Areas/corridors serviced	Service notes
1	Glenn/Swan	Ronstadt Transit Center, Downtown	↔	Swan Road/29th Street	Downtown, Main Gate Square, University of Arizona, North Park Avenue, East Glenn Street, Swan Road.	Operates every 30 minutes (60 minutes at night) during weekdays. Weekend service runs every hour.
2	Pueblo Gardens	Laos Transit Center	↔	Ronstadt Transit Center, Downtown	Irvington Road, South Country Club Road, South Campbell Avenue, 36th Street, Pueblo Gardens, Downtown.	Operates every 30 minutes (60 minutes at night) on weekdays. Weekend service runs every hour.
3	6th St./Wilmot	Pima Community College (PCC) East	↔	Pima Community College (PCC) West	East Stella Road, Wilmot Road, East 5th Street, East 6th Street, University of Arizona, Downtown, St Mary’s Road, Anklam Road.	Operates every 30 minutes during weekdays; 60 minutes at night. 20 minutes peak hours service during weekdays, with extra buses (plugs) available to alleviate overcrowding issues. Weekend service every hour.
4	Speedway	Broadway/Houghton Park & Ride (1st leg) Golf Links/Kolb Park & Ride (2nd leg)	↔	Ronstadt Transit Center, Downtown	Speedway Boulevard, Harrison Road, Kolb Road, University of Arizona, Downtown.	Operates every 15-30 minutes until 12:00pm and from 6:00pm-7:00pm; 10–20 minutes from 12:00pm-6:00pm. Weeknights and weekend service frequency every 30–60 minutes.
5	Pima/W. Speedway	Udall Transit Station	↔	Pima Community College (PCC) West	West Speedway Boulevard, University of Arizona, Pima Street, Tanque Verde Road, Udall Park.	Operates every 30 minutes during weekdays until 7:30pm. Weekend service frequency every hour.
6	Euclid Ave./N. 1st Ave.	Ronstadt Transit Center, Downtown	↔	Tohono Tadai Transit Center	Downtown, Main Gate Square, University of Arizona, North Euclid Avenue, North 1st Avenue.	Weekdays service every 30–60 minutes until midnight. Weekdays AM/PM peak hours service every 15 minutes. Saturday service every 30 minutes. Sunday service runs every hour.
7	22nd St.	22nd Street/Harrison Road	↔	Ronstadt Transit Center, Downtown	Downtown, 22nd Street	Weekdays service every 20 minutes from 6:00am–1:00pm, and from 3:30pm-5:30pm, and every 30 minutes from 5:30pm–7:30pm. Frequency increases to 15 minutes from 1:00pm-3:30pm. Weeknights service every 60 minutes until 11:30pm. Weekend service every hour.
8	Broadway	Ronstadt Transit Center, Downtown	↔	Broadway/Houghton Park & Ride (1st leg) Udall Station at Tanque Verde/Sabino Canyon (2nd leg)	Downtown, East Broadway Boulevard, North Wilmot Road, East Tanque Verde Road.	Weekdays service every 15–30 minutes from the start of the service until about 11:30am, and from 5:00pm to 7:00pm. Weekdays frequency increases to 10-20 minutes after 11:30am until 5:00pm. Weeknights service every 30 minutes until midnight (no service on Wilmot Road/Tanque Verde after 8:00pm). Saturday service every 15–30 minutes. Sunday service every 20–40 minutes. Route 8 does not service Wilmot Road north of Pima Street.
9	E. Grant	Udall Transit Station	↔	Ronstadt Transit Center, Downtown	Grant Road, Campbell Avenue, East 6th Street, University of Arizona, Downtown.	Weekdays service every 30–60 minutes until 11:30pm. Service frequency increases to every 15 minutes from 1:00pm to 5:00pm. Weekend service every hour.
10	Flowing Wells	Tohono Tadai Transit Center	↔	Ronstadt Transit Center, Downtown	Flowing Wells Road, West River Road, Miracle Mile, Oracle Road, Downtown.	Weekdays service every 30–60 minutes until 11:30pm. Weekend service every hour.
11	Alvernon	Laos Transit Center (1st leg) Tucson International Airport (2nd leg)	↔	Dodge Boulevard/River Road	Alvernon Way, Palo Verde Road, East Ajo Way, Laos Transit Center at Irvington, Valencia Road, Tucson Airport.	Operates every 15 minutes north of Ajo Way (weekdays only). 30 minutes frequency on both south legs (Laos Center and Tucson Airport). Weeknight service frequency is 60 minutes after 7pm until 11pm. No service to/from Tucson Airport after 7pm. Service every 30–60 minutes during weekends.
12	10th/12th Avenue	Laos Transit Center	↔	Ronstadt Transit Center, Downtown	Laos Transit Center at Irvington, South 12th Avenue, South 10th Avenue, Tucson Convention Center, Downtown.	Operates every 15 minutes between 6:30pm and 5:30pm. Weeknight service frequency is 30 minutes. Service every 30 minutes during weekends.
15	Campbell	Country Club Road/22nd Street	↔	Tohono Tadai Transit Center	Campbell Avenue, University of Arizona, Eastland Street, Roger Road.	Operates every 20 minutes from the start of the service until 5:30pm. Service frequency is 30–60 minutes after 5:30pm until 11:40pm. Service every hour during weekends.
16	Oracle/Ina	Ronstadt Transit Center, Downtown	↔	Thornydale/Ina roads (stop at the parking lot of Lowe’s at Ina)	Downtown, North Oracle Road, Ina Road.	Operates every 10 minutes on weekdays between Ronstadt and Tohono (TTC) transit centers. Frequency increased to 7.5 minutes during the afternoon peak hours. 30 minutes frequency north of Tohono Center, increased to every 15 minutes in the afternoon. Weeknights service every 30–60 minutes until midnight. Service frequency during weekends is 15 minutes (60 minutes north of TTC) on Saturdays, and 20 minutes (60 minutes north of TTC) on Sundays.
17	Country Club/29th St.	22nd Street/Harrison Road	↔	Davis Avenue/Ruthrauff Road	Golf Links Road, 29th Street, Country Club Road, Prince Road, Romero Road, Ruthrauff Road.	Weekdays service every 30–60 minutes until 11:00pm. Weekend service every hour.
18	S. 6th Avenue	Laos Transit Center	↔	Ronstadt Transit Center, Downtown	Downtown, South 6th Avenue, Laos Transit Center at Irvington.	Operates every 15 minutes before 8:00am and from 6:00pm to 7:00pm. Frequency increased to 7-10 minutes from 8:00am to 6:00pm. Weeknight service frequency is 30 minutes after 7:00pm until midnight. Service every 15 minutes on Saturdays and 20 minutes on Sundays.
19	Stone	Ronstadt Transit Center, Downtown	↔	Tohono Tadai Transit Center	Stone Avenue, Downtown	Weekdays service every 30–60 minutes until 11:00pm. Saturday service every 30 minutes. Sunday service every hour.
20	W. Grant	University of Arizona Mall	↔	Sterling Apartments at Ironwood Hills Drive	Ironwood Hills Drive, Grant Road, Campbell Avenue, University of Arizona.	Weekdays service every 30 minutes until 6:30pm. Weekend service every hour until 6:30pm.
21	W. Congress/Silverbell	Ronstadt Transit Center, Downtown	↔	West Goret Road/Dales Crossing Drive (North Silverbell Road)	Silverbell Road, West Congress Street, Downtown.	Weekdays service every 30–60 minutes until 11:00pm. Weekend service every 30 minutes.
22	Grande	Ronstadt Transit Center, Downtown	↔	Grant/Silverbell roads	Downtown, West Congress Street, Bonita Avenue and City of Tucson Offices, Grande Avenue, Riverview Boulevard, El Rio Drive.	Weekdays service every 30–60 minutes until 11:00pm. Weekend service every hour.
23	Mission	Laos Transit Center	↔	Ronstadt Transit Center, Downtown	Irvington Road, Mission Road, 36th Street, La Cholla Boulevard, Silverlake Road/29th Street, 4th Avenue, Downtown.	Weekdays service every 30–60 minutes until 11:00pm. Weekend service every hour.
24	12th Avenue	Desert Diamond Casino at Los Reales Road.	↔	Laos Transit Center	South 12th Avenue, Los Reales Road.	Weekdays service every 30–60 minutes until 9:30pm. Weekend service every hour.
25	S. Park Avenue	Tucson International Airport	↔	Ronstadt Transit Center, Downtown	Downtown, South Park Avenue, Laos Transit Center at Irvington, Tucson Airport.	Operates every 30 minutes during weekdays. Weeknight service frequency is 60 minutes until 11:55pm. Service every 30 minutes on Saturdays (60 minutes south of Laos Center), and every 60 minutes on Sundays.
26	Benson Highway	Craycroft Road/Benson Highway	↔	Laos Transit Center	Valencia Road, Benson Highway, Drexel Road, Campbell Avenue, Irvington Road.	Weekdays service every 30–60 minutes until 11:30pm. Weekend service every hour.
27	Midvale Park	Casino del Sol, AVA Amphitheater Park & Ride	↔	Laos Transit Center	West Valencia Road, Cardinal Avenue, Drexel Road, Midvale Park Road, Santa Clara Avenue, 12th Avenue.	Weekdays service every 30–60 minutes until 11:00pm. 15 minutes service during AM/PM peak hours. Weekend service every hour.
29	Valencia	Laos Transit Center	↔	Casino del Sol, AVA Amphitheater Park & Ride	6th Avenue, Valencia Road, Los Reales Road, Tetakusim Road, Pasqua Yaqui Pueblo, Casino of the Sun, Casino del Sol.	Weekdays service every 30–60 minutes until 11pm. Weekend service every hour. Route recently extended to Casino del Sol to improve access to community services and jobs.
34	Craycroft/Ft. Lowell	Davis Monthan Air Force Base Visitor Center	↔	Tohono Tadai Transit Center	Davis Monthan Air Force Base, Craycroft Road, East Fort Lowell Road, Stone Avenue.	Weekdays service every 30–60 minutes until 11:30pm; frequency increased to 20 minutes between 1:00pm and 4:30pm. Weekend service every hour. The loop at 30th Street has been eliminated. Layover location at Craycroft/29th Street.
37	Pantano	Pima College (PCC) East	↔	Cloud/Pantano roads	Pantano Road, Tanque Verde Road, Sabino Canyon Road, Cloud Road.	Route 37 buses do not stop on the 22nd Street segment. Weekdays service every 30 minutes until 7:45pm. Weekend service every hour.
50	Ajo Way	Laos Transit Center	↔	Ajo Way/Mission Road	West Ajo Way, 6th Avenue.	Weekdays service every 30–60 minutes until 9:30pm. Weekend service every hour.
61	La Cholla	Tohono Tadai Transit Center	↔	Foothills Mall Drive at La Cholla (in front of Walmart)	Wetmore Road, Auto Mall Drive, La Cholla Boulevard, Ina Road, Shannon Road.	Weekdays service every 30 minutes until 8:00pm. Weekend service every hour.

Express Routes

Route No.	Route Name	Terminals			Areas/corridors served	Service notes
Express Routes to and from Downtown
101X	Golf Links-Downtown Express	Harrison/Golf Links roads	→ AM ---- ← PM	Downtown Tucson	Golf Links Road, Downtown Tucson	Weekdays peak hours service only.
102X	Northwest-UA Express	Magee/Oracle roads	→ AM ---- ← PM	University Medical Center	Magee Road, Ina Road, Downtown Tucson, Speedway Boulevard, University of Arizona.	Weekdays peak hours service only.
103X	Northwest-Downtown Express	Ina Road/Camino de la Cruz	→ AM ---- ← PM	Downtown Tucson	Ina Road, Oracle Road, River Road, Campbell Avenue, Speedway Boulevard, University of Arizona, Downtown Tucson.	Weekdays peak hours service only.
104X	Marana-Downtown Express	Arizona Pavilions at Cortaro Road	→ AM ---- ← PM	Downtown Tucson	Marana, Cortaro Road, Downtown Tucson.	Weekdays peak hours service only.
105X	Foothills-Downtown Express	Tohono Tadai Transit Center	→ AM ---- ← PM	Downtown Tucson	1st Avenue, Sunrise Drive, Catalina Foothills, Swan Road, Speedway Boulevard, University of Arizona, Downtown Tucson.	Weekdays peak hours service only.
107X	Oro Valley-Downtown Express	Rancho Vistoso Park & Ride	→ AM ---- ← PM	Downtown Tucson	Oro Valley, Tangerine Road, La Cañada Drive, Oracle Road, Downtown Tucson.	Weekdays peak hours service only.
108X	Broadway-Downtown Express	Broadway/Houghton Park & Ride	→ AM ---- ← PM	Downtown Tucson	Broadway Boulevard, Downtown Tucson.	Weekdays peak hours service only.
109X	Catalina Highway-Downtown Express	Catalina Highway/Tanque Verde Road	→ AM ---- ← PM	Downtown Tucson	Tanque Verde Road, Grant Road, Speedway Boulevard, University of Arizona, Downtown Tucson.	Weekdays peak hours service only.
110X	Rita Ranch-Downtown Express	Downtown Tucson	↔	Old Vail Road Park & Ride	Downtown Tucson, University of Arizona Science & Technology Park, Rita Ranch.	Weekdays peak hours service only. Commuting available in both directions.
Express Routes to and from Aero Park
201X	Eastside-Aero Park Express	Harrison/Golf Links roads	→ AM ---- ← PM	Aero Park, Raytheon	Tucson East side, Harrison Road, Speedway Boulevard, Alvernon Way, Palo Verde Road, Aero Park Area, Raytheon.	Weekdays peak hours service only. Only two morning and two afternoon trips.
202X	Northwest-Aero Park Express	La Cholla Boulevard/Ruthrauff Road	→ AM ---- ← PM	Aero Park, Raytheon	La Cholla Boulevard, Northwest side, Ina Road, Laos Transit Center, Aero Park Area, Raytheon.	Weekdays peak hours service only.
203X	Oro Valley-Aero Park Express	Rancho Vistoso Park & Ride	→ AM ---- ← PM	Aero Park, Raytheon	Oro Valley, Laos Transit Center, Aero Park Area, Raytheon.	Weekdays peak hours service only.
Express Routes to and from Tohono Center
312X	Oro Valley-Tohono Express	Tohono Tadai Transit Center	↔	Rancho Vistoso Park & Ride	Tohono Transit Center, Oracle Road, Oro Valley.	Weekdays peak hours service only. Commuting available in both directions.

Alternative propulsion

For at least the next five years, Sun Tran will use more biodiesel buses. Biodiesel is a cleaner than regular diesel. Sun Tran plans to buy an additional 119 biodiesel buses over its five-year contract with bus manufacturer Gillig Corp. buses are also capable of running on regular diesel, but Sun Tran does not use petrodiesel in any of its buses. Sun Tran uses B20 and B5 biodiesel blends in its 114 biodiesel buses. It is believed that the increased use of biodiesel avoided a potential fare increase and fuel surcharge in July 2008.

Customer service

Sun Tran publishes a transit book, known as the Ride Guide, and it is updated twice yearly, on February and on August. It contains maps and schedules for all regular and express routes. Copies are available at multiple locations around town, including the Sun Tran offices, many public libraries, community colleges, major malls, pass sales outlets, at other civic facilities around the metropolitan area, and on the buses themselves. The Ride Guide is also available online at the Sun Tran website. Additionally, route schedules are posted at the transit centers in the City of Tucson.

A customer service call center is operated for passengers to plan their bus trips with the assistance of a live customer service representative, information for Sun Tran, Sun Express, Sun Shuttle and Sun Link, fares and SunGO information, detours, comments and questions. The Sun Tran website also has an online trip planning function, and includes all schedules and maps featured in the Ride Guide.

Regional Transportation Plan and streetcar system

Further information: Sun Link

In May 2006, voters in Tucson approved a Regional Transportation Plan (a comprehensive bus transit/streetcar/roadway improvement program), and its funding via a new 20-year half-cent sales tax increment. The centerpiece of the Regional Transportation Plan is Sun Link, a 3.9-mile modern streetcar system (inspired by the successful Portland Streetcar in Oregon) that travels through the downtown area, connecting the main University of Arizona campus with the Mercado District master plan area (known at that time as Rio Nuevo) on the western edge of downtown.

In December 2010, a $63 million federal TIGER grant was awarded to the City of Tucson, meeting most of a remaining funding gap and allowing the modern streetcar project to move forward. An additional $6 million of federal funding was obtained through the Federal Transit Administration's New Starts program. Funding also came from utilities for relocation and improvements along the streetcar route, most significantly $10.6 million from Tucson Water.

The Sun Link name was officially announced in the spring of 2012. Construction began in April 2012, with revenue service beginning in July 2014.

A Tucson Sun Link streetcar on Congress Street at Fifth Avenue in September 2014

Oregon-based United Streetcar manufactured the Sun Link vehicles. Sun Link maintains a fleet of eight vehicles, using up to six cars at once. Tucson placed an initial $26 million order for seven cars in June 2010. The eighth car was ordered for an additional $3.6 million in July 2012 in order to satisfy FTA requirements for a second spare. United's first model 200 car arrived in Tucson by flatbed truck on August 30, 2013.

Sun Link is double-tracked, replacing a single-track configuration previously used by Old Pueblo Trolley (OPT), a volunteer-run heritage streetcar operation, begun in 1993, mainly used by tourists and local patrons (including University of Arizona students) of the numerous small shops, bars and restaurants along the line. The maintenance facility is located just west of the OPT car barn and yard on 8th Street west of 4th Avenue. OPT last ran on October 31, 2011, when service was suspended for Sun Link construction; the plan was for Old Pueblo Trolley to share operations, trackage and stations with Sun Link, but no date has yet been set for OPT service to resume.

Regional seamless transit system

On January 22, 2009, a regional seamless transit system was unveiled that helps to better unify the various public transit services in and around the Tucson metropolitan area. One change was the renaming of several of the services under the "Sun" moniker: the Sun Tran express bus routes become Sun Express; Van Tran (paratransit) becomes Sun Van, circulator routes in outlying areas become Sun Connect, and RideShare (carpooling) becomes Sun RideShare. Along with this name change comes a new logo and color scheme, replacing the old red, yellow, and white with a blue, yellow, silver, and white livery that extends across not only the Sun Tran buses, but the other services as well (even the renderings and computer animations of the then-under-development Sun Link streetcar were converted to the new design). The new livery was introduced into service on February 16, 2009 with the addition of 47 new Sun Tran buses and 42 Sun Van (formerly Van Tran) paratransit vehicles to the fleet. Current vehicles will keep their existing liveries until they are either overhauled or replaced. Also in the works are new fare machines that allow a single "smart card" to pay fares on Sun Tran, Sun Express, Sun Connect, and the downtown streetcar; and improved signage at bus stops and transit centers.

Sun Connect service started on May 4, 2009 under the name Sun Shuttle, with routes to the north and northwest, Green Valley, and Sahuarita.

External links

• Sun Tran home page
• City of Tucson Transit Services
• Regional Transportation Authority website