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Accessible Buses


The ability to travel is important to everyone, so all Sun Tran buses offer accessibility features for any rider requesting the service.

image of Sun Tran bus with access ramps deployedBus Features

Click here to view wheelchair measurement standards

Click here to view wheelchair measurement standards

Wheelchair & Scooter
Measurement Standards

Personal mobility devices have become increasingly diverse in size, design and functionality.  It is important that these devices meet certain design standards in order for you to safely travel by bus.

The U.S. Department of Transportation Regulations 49 CFR Parts 37 and 38 governs “Transportation Services for Individuals with Disabilities” and “ADA Specifications for Transportation Vehicles”. Passengers exceeding the limits listed below may be denied boarding.

What is a “wheelchair”?
As defined by the U.S. Department of Transportation (USDOT) Regulation, it is:
“Wheelchair means a mobility aid belonging to any class of three or more wheeled devices, usable indoors, designed or modified for and used by individuals with mobility impairments, whether operated manually or powered.”

Wheelchair Size Specifications

All Sun Tran vehicles are built and maintained in adherence with all USDOT regulations.   

Sun Tran can accommodate all wheelchairs that fit within size regulation of 30” wide by 48” long. Wheelchairs and attached items exceeding these dimensions will be judged on a case-by-case basis and may be excluded if accommodating the wheelchair is inconsistent with legitimate safety requirements.

USDOT regulations require that vehicle lifts and ramps are capable of accommodating a capacity of at least 600 lbs. All Sun Tran buses can accommodate wheelchair and passengers combined weight of up to 600 lbs.

Since Sun Tran operates some buses with ramps and others with lifts, some buses can carry wheelchairs that exceed the required 600 lbs. For a detailed list of weight limits by bus number, call Sun Tran’s Customer Service Center at (520) 792-9222 (TDD: 628-1565) or click here.

Please call Sun Tran’s Customer Service Center for details at (520) 792-9222 (TDD: 628-1565).

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image of driver helping to secure a passenger in a wheelchairSegway®

Only Segways being used as a mobility device by individuals with disabilities are allowed on Sun Tran. Those who wish to board Sun Tran with a Segway need to meet eligibility requirements established by the City of Tucson ADA Paratransit Eligibility Office, 791-5409. Individuals meeting the requirement will be issued an ID card that states, "Segway Approved." This ID must be presented upon boarding. To safely secure a Segway, the use of at least two 15-inch securement loops is recommended, but three loops are preferred. Training on how to board and secure a Segway device is recommended before boarding a bus in service, and may be provided by contacting Sun Tran at (520) 792-9222.

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images of rider in wheelchair boarding a bus

image of a rider with a walker exiting a bus

Boarding the Bus

  1. Plan to arrive at the bus stop at least five minutes early. Be sure you are inside the bus shelter or near the bus stop so the driver can see you.
  2. If you require the use of the lift or ramp, please stay about eight feet away from the bus so that the lift or ramp can be lowered safely.
  3. If you need the kneeler, please let your coach operator know.
  4. To avoid turning around in the securement bay, you may find it easier to board by backing your device onto the lift.
  5. Please turn off mechanized devices and lock the wheels while on the bus lift and again once you are safely secured.
  6. If visually impaired, upon boarding we encourage you to inform the coach operator which bus stop you need.

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image of driver helping to secure a passenger in a wheelchairSecuring Mobility Devices

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Exiting the Bus

image of VanTran microbusParatransit Service

Sun Van's paratransit service is available to ADA eligible residents.

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