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考虑信息化重要度的公交信息化项目建设时序研究
Study on Construction Sequence of Public Transportation Informatization Projects Considering Informatization Importance
【摘要】 合理规划各项目的建设时序是信息化建设中的关键问题,然而现有定量研究忽略了项目业务需求和数据需求的影响,且项目分批推进模式下的调度问题有待进一步研究。针对上述不足,考虑信息化重要度,提出了一种基于0-1规划模型的公交信息化项目建设时序研究方法。首先,引入有向图概念提出定量描述业务关系的“项目业务入度”和“项目业务出度”指标,并从数据影响方面构建了“数据可用性”和“数据支撑性”指标。其次,采用CRITIC方法确定各指标的权重。接下来,使用线性加权和法集成4个指标,得到各项目的信息化重要度。然后,以全局信息化重要度最大为目标建立0-1规划模型。最后,利用贪心算法求解模型,得到各项目所属建设批次。以佛山市的10个公交信息化建设项目为例,研究其建设时序。同时,构建信息化建设效率作为评价指标,其综合了项目资金使用情况、信息化贡献程度和建设工期。结果表明:信息化重要度指标是合理的,且可大范围推广应用;所提方法的信息化建设效率为59.98%,高于建设成本排序方法和逼近理想解排序方法,可以有效指引公交信息化项目的建设,具有实际应用价值。
【Abstract】 It is a key problem to plan the construction sequence of each project reasonably in the informatization construction, but the existing quantitative research neglects the influence of the project business requirement and the data requirement, moreover, the scheduling problem under the batching mode needs further study. To tackle these problems, a method based on the 0-1 programming model with the informatization importance is presented. In view of the above-mentioned shortcomings, considering the importance of informationization, a method based on 0-1 programming model is put forward to study the construction sequence of public transportation informationization project. First, the concept of directed graph is introduced and the indicators of “in-degree of project business” and “out-degree of project business” are put forward to describe the business relationship quantitatively, and from the data impact aspect, the indicators of “data availability” and “data support” are constructed. Second, the weight evaluation of each indicator is determined by CRITIC method. Next, 4 indicators are integrated by using linear weighted sum method to get the informatization importance degree of each item. Then, 0-1 programming model is established with the goal of maximizing the importance of global informatization. Finally, the greedy algorithm is used to solve the model and the construction batch to which each project belongs are got. Taking 10 public transport informatization projects in Foshan for examples to study the construction sequence. At the same time, the efficiency of informatization construction is constructed as an evaluation indicator, which synthesizes the use of project funds, the contribution of informatization and the construction period. The result shows that(1) the importance indicator of informationization is reasonable and can be widely used;(2) the informatization efficiency of the proposed method is 59.98%, which is higher than those of the construction cost ranking method and approximate ideal solution ranking method. That can effectively guide the construction of public transport informatization projects with practical application value.
【Key words】 ITS; construction sequence scheduling; 0-1 programming model; public transportation informatization project; quantification of business demand relationship; informatization importance;
- 【文献出处】 公路交通科技 ,Journal of Highway and Transportation Research and Development , 编辑部邮箱 ,2023年12期
- 【分类号】U491.17
- 【下载频次】7