| dc.description.abstract | Abstract
In the traditional construction of road works, the more rule of thumb method to deploy manpower and equipment, so scheduling method in small-scale projects can still be competent, when the size of the project requirements to shorten the duration, workload, complexity is high, policy-makers decided to deploy may be invisible without being aware of the tremendous waste of resources; this study for the road works equipment and personnel assigned to the individual needs and conditions of the use of linear programming optimization model, find the day of each group of equipment and human resources assigned to scheduling, providing Road works to deploy those required for the activation of the reference.
Road works in the modern practice, the works have their own similarities and differences between the resources and constrains, to seek the lowest cost and on schedule for completion of the objectives of the project of the decision-makers can solve the problem in different ways; this study, different modes of analysis, in addition to solve the deadline completion of the problem, but also through the different modes will be obtained by the lowest cost compared and discussed. In addition, the sensitivity of each parameter based on changes in the trend of sensitivity analysis, by adjusting the face of constraints or changes in the allocation of resources, to achieve full use of resources and reduce costs.
Solving methods, this research is based around the construction site, the required manpower, the equipment operating conditions, such as time-use of EXCEL software to seek the machinery in different configurations of human completion of the required number of days in each place, each model in the practical implementation of the , when the construction conditions change, they can always adjust the parameters according to the latest re-planning schedule. Construction of the premises in a different number of different combinations of manpower and equipment generate basic information to the number of days when demand for the construction of other factors in determining the constraints of the parameters, enter the LINGO 7.0 software package to solve, you can direct the output of various models at the lowest cost, human and equipment assigned to the case and so the results.
To verify the model of rationality, in order to build a plant to fulfill a particular case as an example of road works carried out simulation tests; and to optimize the model obtained the minimum cost and the general human experience, find ways to assign the cost compared to verify the patterns produced on the best assignment results, indeed higher than that derived from human experience, to assign a lower cost and more efficient. Therefore, this study can be flexibly applied to advance planning and human changes in the review of planning issues such as costs, with supporting decision-makers of the usefulness of the process of planning operations.
Keywords: machinery and manpower deployment, the minimum cost, linear programming, resource allocation and optimization.
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