Chikashi Deguchi

Sequencialization of Construction and Relocation Works in Land Readjustment Projects and Its Usability

Land readjustment projects in built up area have severe problems such as extension of period and increase of cost, because this kind of projects requires many relocations. Land readjustment management of construction and relocation, which can calculate the minimal cost by using CPM is necessary. For using CPM, sequence of constructions and relocations is required. Common sequence should be given previously.In this paper, a questionnaire survey was carried out to investigate the common sequence for the model projects. The sequence obtained from questionnaire was applied to a virtual project which includes the object of break relocation method. Finally, the usability of proposed sequence was proved by a model case study.

Development of a construction planning system to support the project management of land readjustment

A lot of structure relocation sequentially occur in a land readjustment project at urbanized areas. They cause the difficulties in project management such as control of work schedule, delay of construction period, increase of cost, and so on. It is difficult to find the best work schedule with the lowest construction cost for the reason of the multiplicity of working process. It is required to develop a method that systematically select adequate work unit and schedule.This paper describe a system based on Critical Path Method that can find the optimum period and work schedule with the lowest cost. After the assessment of the validity using a virtual project, the system was applied to a constructing project. Output results show that the system gives us very useful information on the relation between the construction period and the lowest cost, optimum work schedule and relocation manners.