Resumen
The article examines the possibility of decreasing driver fatigue and work intensity influencing the traffic safety and road accident prevention, with the focus on route vehicles operating in the urban cycle. As a tool to solve the task, designs of gearboxes used in vehicles are studied. A new design for a four stage automatic gearbox, shifting gears automatically without use of external energy and providing for continuous transmission, is suggested. It allows for decrease of driver fatigue and work intensity, significant decrease of gearbox cost, multiple enhancement of reliability, reduction of clutch operation costs, enhancement of driver's attention concentration on road conditions and improvement of the traffic safety.