The Alabama Department of Transportation, also known as ALDOT, operates an administrative bureau that offers policy and planning services. The department s air transportation bureau issues flight request and cancellation forms. It manages an equipment, procurement and services division that includes supply and property inventory sections. The Alabama Department of Transportation s human resources bureau is responsible for job training activities. The department administers a contract compliance program. Its maintenance bureau operates bridge and roadway sections. The Alabama Department of Transportation also performs traffic operations. The department offers product evaluation services. It additionally conducts research and development activities. The Alabama Department of Transportation s materials and tests bureau oversees the selection and control of supplies used in road and bridge construction.