The growth is hot about the number of companies, the vehicles, and the variety of the business model of freight services in general, the road freight, in particular, have cooked up big challenges for the state management as well as the administration about business activities of transport companies. The road freight has still many inadequacies about the hight running coast, badly affecting the environment, the increase in the traffic jam and traffic accidents. About the state management, the organization and implementation processes the function to control the road transport encounter many difficulties and exist inadequacies about post-check after business registration, not ensure supply-demand balance in the transport markets. Still have many duplications in plan and organize the implementation of the sustainable development policy lead to has not brought into play all resources and effectiveness. Technology applications in management and operating, the policy of sustainable development in the road freight has not been given adequate attention. Faced with the need for sustainable development and improving the efficiency of the national transportation system, research on strengthening state management of car transportation in Vietnam is very urgent. Moreover, it is very practical and scientific to propose solutions to contribute to improving the capacity, effectiveness and efficiency of the state management of goods transportation by car in Vietnam.. The article focuses on analyzing and evaluating the current state of state management about the goods freight by cars, proposing radical solutions to strengthen state management to get the goals of sustainable development of the transport and the freight transport industry. Based on data collected from actual surveys, interviews and published research, the author has analyzed the overall performance of state management in car freight transport. With the number of 1227 sending feedback votes, it is a reliable basis for analyzing, assessing the current situation and clarifying the limitations, weaknesses as well as their causes in the management of freight transport in Vietnam.

This paper describes performance improvement of GPS/DR Integration system using area decision algorithm and vehicle movement information. In GPS signal blockage area, i.e., tunnel and underground parking area, DR sensor errors are accumulated and navigation solution is gradually diverged. We use the car movement information according to moving area to correct the DR sensor error. Also, vehicle movement is decided as stop, straight line, turn and movement changing region through DR sensor data analysis. The car experiment is performed to verify the supposed method. The results show that supposed method provides small position and heading error than previous method.