There are three procedures that comprise this test sequence. 

Accessibility of Components and Subsystems: The objective of this test is to check the general accessibility of components and subsystems. Items that are checked are ones that would typically require maintenance or repair during transit service. Read the full test procedure.

Servicing, Preventive Maintenance, and Repair Maintenance: The objective of this test is to collect data about the servicing, preventive maintenance, and repair of the vehicle. Read the full test procedure. 

Replacement and/or Repair of Selected Subsystems: The objective of this test is to identify the time required to replace and/or repair selected parts or subsystems. Read the full test procedure.



Established in 1989 by the Pennsylvania Transportation Institute with funding provided by the Federal Transit Administration, the Larson Transportation Institute’s Bus Research and Testing Center tests buses for safety, structural integrity, durability, performance, maintainability, noise, emissions, energy economy, and fuel economy. Based primarily in Altoona, Pennsylvania, the Center also has a facility located at the Larson Transportation Institute Test Track in Bellefonte, Pennsylvania.  

Bus Research and Testing Center

2237 Plank Road

Duncansville, PA 16635

Phone: 814-695-3404

Fax: 814-695-4069