路桥施工企业依法加强人力资源管理初探

文章结合企业人力资源管理实践,根据《劳动合同法》的相关规定,分析了当前路桥施工企业人力资源管理存在的问题,提出了加强路桥施工企业人力资源管理的新思路,为路桥施工企业的人力资源管理提供参考。     

ACCESS数据库在人力资源管理中的开发与应用

文章结合当前路桥施工企业人力资源管理现状,分析了将Access软件应用于人力资源管理数据库开发的优点,介绍了基于Access软件的人力资源管理数据库的设计思路和应用方法。     

试论路桥施工企业人力资源培训与开发

文章结合当前国有企业人力资源管理现状,分析了路桥施工企业实行人力资源培训与开发的重要性和必要性,提出了建立人力资源培训开发体系的相应对策。     

路桥企业员工心理健康管理初探

文章基于对路桥企业员工心理健康问题表现形式及原因的分析,探讨了路桥企业员工心理健康管理的疏导应对措施,提出员工心理健康管理应成为人力资源管理的新课题。     

路桥施工企业ERP系统研究

文章结合某路桥施工企业的企业资源管理系统(ERP系统)实施实例,分析了该企业的信息化规划需求和建立ERP系统的必要性,介绍了ERP系统的功能架构及其子系统和各模块对应的业务流程,为实施ERP系统的路桥施工企业提供借鉴.     

道路桥梁施工管理中存在的问题及优化措施

道路桥梁是重要的基础设施,其施工质量直接影响到道路通行安全,甚至对地区经济发展也有着重要的影响。随着我国道路桥梁建设工程数量的不断增多,施工企业必须要加强对道路桥梁的施工管理工作,严格把控道路桥梁施工质量,确保道路桥梁的顺利竣工。文章就道路桥梁施工管理展开分析和论述,并针对管理问题提出合理的优化措施。     

路桥工程现场施工管理难点和应对策略

我国社会经济的发展,推动了建筑行业的不断发展,路桥工程建设项目随之逐渐增多。路桥工程是国家基础设施建设项目,直接影响运输业,其施工具有工序繁多复杂、投资大、质量要求高等特点,需进行现场施工管理,才能确保整个工程顺利完成,并保证工程整体质量。但路桥工程施工质量管理、现场施工管理存在诸多难点,需针对这些问题采取有效的应对策略,促进路桥工程施工顺利进行,并促进路桥工程建设持续发展。因此,以路桥工程现场施工管理的重要性为切入点,分析了路桥工程现场施工管理难点和应对策略,从而促进路桥工程施工顺利进行,保证路桥工程整体施工质量。     

路桥施工管理过程的创新管理分析

路桥是建筑工程施工的重要组成部分,做好路桥施工管理过程创新管理工作,可以切实有效保证工程质量,使得工程项目稳定推进,节约施工成本,对于路桥施工管理工作的意义重大。基于此,本研究将针对路桥施工管理过程的创新管理进行分析,希望能够进一步优化路桥施工质量,解决施工环节所遇到的各类问题。     

路桥施工项目精细化管理的重要性

路桥建设项目是我国城市建设的基础设施,通过精细化管理保障路桥项目的施工质量与经济效益是十分必要的。鉴于此,深入探究精细化管理对路桥施工项目的重要性,并针对路桥施工提出几点精细化管理的有效措施。     

路桥工程的施工管理工作探讨

路桥工程是十分重要的基础设施建设项目,其施工管理是一项庞大、复杂、系统的工作,不但包括施工计划管理,还包括施工材料及进度等方面的管理,且这种管理一直伴随整个路桥施工过程。以某项路桥工程为例,分析路桥施工管理中存在的问题,在此基础上提出有针对性的管理对策。     

轨道交通换乘车站供电资源共享设计探讨

结合上海轨道交通耀华路站工程设计实践,在资源共享的前提下,确定了换乘车站共享供电资源的配置;结合低压供配电系统设置的基本原则,对换乘车站动力照明配电区域进行分区管理和资源共享;分析了换乘车站资源共享的基本原则,为轨道交通换乘车站的资源共享设计提供参考。     

Solving the logistic problems with optimal resource assignment using fuzzy logic methods

Fuzzy approach of optimal resource assignment regarding the given demands in the scope of transportation will be presented in the article. The basis of the research is the crisp solution which is also presented in the article. The basic solution was upgraded in order to be able to handle vaguely (i.e. fuzzily) defined requirements and resource properties. The optimal resource configuration is calculated with the aid of Hungarian algorithm which uses the data calculated with the fuzzy methods for its inputs. The approach described is presented on the example of a military convoy formation. Copyright © 2011 John Wiley & Sons, Ltd.     

公路客运班车报停制度研究

公路客运峰谷现象明显,在运能、运力有限的情况下,如何才能更好地满足客运高峰期(如春运)的交通需求是政府和企业的一项重要课题。现有的政策并没有使有限的客运资源得到最合理的利用,给能源和环境都带来了一定的影响。文章较系统地从企业和政府两个角度论述了建立班车报停制度的必要性和可行性,通过对客运线路的调查,对公路客运班车报停制度的社会经济效益作了定性和定量分析。     

Constraint handling methods in pavement maintenance programming

The problem of pavement maintenance management at the network level is one of maintaining as high a level of serviceability as possible for a pavement network system through reactive and proactive repair actions, whilst optimising the use of available resources. This problem has traditionally been solved using techniques like mathematical programming and heuristic methods. Lately, the use of genetic algorithms (GAs) to solve resource allocation problems like the network pavement maintenance problem has received increased attention from researchers. GAs have been demonstrated to be better than traditional techniques in terms of solution quality and diversity. However, the performance of the GAs is affected by the method used to handle the many constraints present in the formulation of such resource allocation methods. Penalty as well as generate and repair methods are the usual techniques used to handle constraints, but these have their drawbacks in terms of computational efficiency and tendency to get trapped in sub-optimal solution spaces. The paper proposes a third method that is computationally more efficient than the previous methods. The method is based on prioritised allocation of resources to maintenance activities and the maximum utilisation of resources. Constraints on maximum resource availability are no longer used passively to check on solution feasibility (as in the previous methods) but are used to help generate feasible solutions during the resource allocation phase of the algorithm itself. It is demonstrated that the GA with the prioritised resource allocation method (PRAM) outperforms the traditional GA with repair or penalty methods. PRAM was able to consistently outperform the other two GA based methods, both in terms of solution quality as well as computational time. It is concluded that PRAM can be used as the basis of more efficient resource allocation procedures in the area of pavement maintenance management.     

Model and a solution algorithm for the dynamic resource allocation problem for large-scale transportation network evacuation

Allocating movable resources dynamically enables evacuation management agencies to improve evacuation system performance in both the spatial and temporal dimensions. This study proposes a mixed integer linear program (MILP) model to address the dynamic resource allocation problem for transportation evacuation planning on large-scale networks. The proposed model is built on the earliest arrival flow formulation that significantly reduces problem size. A set of binary variables, specifically, the beginning and the ending time of resource allocation at a location, enable a strong formulation with tight constraints. A solution algorithm is developed to solve for an optimal solution on large-scale network applications by adopting Benders decomposition. In this algorithm, the MILP model is decomposed into two sub-problems. The first sub-problem, called the restricted master problem, identifies a feasible dynamic resource allocation plan. The second sub-problem, called the auxiliary problem, models dynamic traffic assignment in the evacuation network given a resource allocation plan. A numerical study is performed on the Dallas–Fort Worth network. The results show that the Benders decomposition algorithm can solve an optimal solution efficiently on a large-scale network.     

Ecologically based hybrid life cycle analysis of continuously reinforced concrete and hot-mix asphalt pavements

An ecologically-based hybrid life cycle assessment model is used to evaluate the resource consumption and atmospheric emissions of continuously reinforced concrete and a hot-mix asphalt pavements. The cumulative mass and ecological resource consumption values are lower for continuously reinforced concrete, but the median values of cumulative energy and industrial energy consumption were lower for hot-mix asphalt. In addition, the use of reclaimed asphalt pavement results in a higher sensitivity for the ecological resource consumption of hot-mix asphalt compared to that of fly ash when use on the natural capital utilization of continuously reinforced concrete pavement. The cumulative and industrial exergy consumption values are significantly reduced with increases in reclaimed asphalt pavement and fly ash, and the use of low fuel transportation modes.     

A framework for the assessment of collaborative en route resource allocation strategies

Airspace Flow Programs (AFPs) assign ground delays to flights in order to limit flow through capacity constrained airspace regions. AFPs have been successful in controlling traffic with reasonable delays, but a new program called the Combined Trajectory Options Program, or CTOP, is being explored to further accommodate projected increases in traffic demand. In CTOP, centrally managed rerouting and user preference inputs are also incorporated into initial en route resource allocations. We investigate four alternative versions of resource allocation within CTOP in this research, under differing assumptions about the degree of random variability in airline flight assignment costs when measured against a simple model based upon the flight specific, but otherwise fixed, ratio of airborne flight time and ground delay unit cost. Two en route resource allocation schemes are based on ordered assignments that are similar to those used currently, and the other two are system-optimal assignment schemes. One of these system-optimal schemes is based on complete preference information, which is ideal but not realistic, and the other is based on partial information that may be feasible to implement but yields less efficient assignments. The main contribution of this research is a methodological framework to evaluate and compare these alternative en route resource allocation schemes, under varying assumptions about the information traffic managers have been provided about the flight operators’ route preferences. The framework allows us to evaluate these various schemes under differing assumptions about how well the traffic managers’ flight cost model captures flight costs. A numerical example demonstrates that a sequential resource allocation scheme – where flights are assigned resources in the order in which preference information is submitted – can be more efficient than a scheme that offers a cost minimizing allocation based on less complete preference information, and may at the same time be perceived as equitable. We also find that assigning resources in the order flights are scheduled results in less efficient allocations, but more equitable ones.     

Evaluating Key Resources and Capabilities for Liner Shipping Services

Abstract

This paper empirically evaluates key resources and capabilities in the liner shipping context. Based on a factor analysis, three resource dimensions are identified: marine equipment, information equipment, and corporate image; whereas seven capability dimensions are identified: purchasing, operation, human resource management, customer service, information integration, pricing, and financial management. The findings suggest that operation capability is perceived as the most important dimension, followed by customer service, human resource management, information integration, pricing purchasing, and financial management. Results indicate that four dimensions are found that significantly differ between shipping companies and agencies: marine equipment, information equipment, operation, and information integration. The theoretical and managerial implications of the research findings are discussed.