Abstract
The purpose of this study has been to describe the behaviour pattern of people by means of mathematical calculation models and concepts. On the basis of three factors, viz. changes in employment and in labour forces, increase in car ownership and improvement of road rail and bus network the modification in work-to-home trips are established. The results are used to estimate the evening peak-hour conditions for public transport in workdays. The study has been made for 1980. A.D.