The study will be conducted in Hatanpää workplace area located just outside the city center and including hundreds of workplaces. Workplaces with the minimum of 10 employees are contacted for recruitment in August 2014. Baseline information is collected about the workplaces (web-based questionnaire), employees (questionnaire, accelerometer, travel log) and environment (traffic calculations and audit system, Geographic Information System=GIS) first in September-October 2014 and second in March-April 2015.