Takeshi Chishaki

Cooperative Pick-Up and Delivery System for Urban Goods in Central Business District

In this paper, both the consciousness of, and the actual conditions of, a cooperative pick-up and delivery system for goods in the Tenjin District of Fukuoka City, Japan, are investigated from the viewpoints of the shippers and the transportation companies. Details of survey include characteristics of shippers, office, goods, pick-up and delivery. The factors for the use and participation in the cooperative pick-up and delivery system are analyzed using questionnaire data. Effective strategies to use such a system to participate in it are also discussed by considering the actual conditions. As a result, PR on the social merits of the system to employers for shippers and to encourage participation of the small-scale shipping agencies for transportation companies are necessary.

A Study on the Interval Distribution of Traffic Counting Points

So far we have developped several methods to dispose the continual traffic counting points. And it also needs to consider how to distribute the points of general traffic survey on the road network. In this reserch, we analysed the degree that the trip length distribution and the intervals between traffic counting points affect the accuracy of the estimation of the observed frequency and total triplength.This paper shows that the expectation of the observed frequency is in proportion to the trip length, that the estimation error of total trip length is in proportion to the average interval, and that the average interval needs to be less than 5.0km from the analysis of the trip length distribution of the car OD surveyin 1980. On the base of these results, we tried to dispose the traffic counting points nearly equally on the route of the trunk road network of Fukuoka City.

A Study on the Method of Effective Use and Improvement of Urban Road Network Using Goal Programming Technique.

This paper proposes a new method for the optimal allocation of increasing activity demmands and the determination of road sections to be improved in urban area, using goal programming and multiple objective linear programming technique.As the results of case study in SAGA city, it has been found that this method is available for projecting future urban environments and for testing the probable consequences of alternative policies such as improvement of road network and land use controls.