广义CAPP系统

广义CAPP是根据工厂实际和信息需求分析提出的一种新概念。文中重点论述了广义CAPP的定义、系统的功能结构、关系模型和工作原理。它的实施不仅可弥补传统CAPP的功能不足之处,而且还可与相关的生产管理,材料管理和成本管理系统提供综合性信息服务,从而达到工厂总体最优化目标。因而它对我国CAPP系统的研究和发展具有一定的意义。     

浅谈港口建设项目设计阶段工程造价的控制方法

设计阶段的造价控制对整个工程投资的影响高达75％，故在设计阶段进行造价控制对港口建设项目总投资具有重要意义。介绍设计阶段进行方案优选、实行设计招投标制度、运用价值工程、实行限额设计以及设计监理等主动控制的基本方法，以合理地处理技术与经济之间的对立统一关系，达到节约总投资的目的。     

浅谈公路工程投标预算编制

以运城绕城公路路基、桥涵工程第三合同段投标工作的造价经验为例,详述了编制公路工程预算时提取工程量、正确套用定额、准确把握造价的程序和方法。     

工程量清单在我国铁路建设项目中的应用

简要介绍在铁路建设项目中推广工程量清单的意义；阐述工程量清单计价与定额计价之间的关系；分析在施工单价承包、施工总价承包及工程总承包三种方式下工程量清单的作用；对工程的承包模式、评标办法、施工企业管理水平等问题进行了讨论。     

大型客站无柱雨棚改造应注意的问题

分析了大型客站无柱雨棚改造的施工难点以及在工程投资方面与一般改造项目的不同之处，提出在概算编制中应该注意的问题及解决的办法。     

GSM-R网络小区半径和重叠区规划

随着GSM-R网络在中国铁路的广泛应用，网络预规划作为网络建设的一个重要步骤，得到了重视。结合铁路通信的特点，在高速和普速环境下，采用Hata模型对典型的5种地理环境进行建模，并结合链路平衡预算，给出小区覆盖半径的规划方法，同时，利用同频干扰与小区重叠区的关系，给出小区重叠区的规划方法。     

做好边防公路养护工程预算的难点

通过对比公路工程新建工程预算和高等级公路养护工程预算,分析了边防公路低等级养护预算的难点,提出了一些方法和建议,作为今后养护预算工作的参考。     

汽车企业研发项目预算审核与管理方法

研发项目预算在汽车企业的整体战略规划中占有十分重要的地位,是财务管理的重要组成部分。充分发挥研发项目预算管理方面的作用,对全面合理地运用企业技术资源,有效降低企业运营的资金及管理风险有积极作用。文章针对研发项目预算的属性,详细阐述了研发项目预算审核需关注的几个关键点。结合预算执行中出现偏差的情况,提出预算创新管理方法,时有效贯彻研发目标、合理调配技术资源和提高研发项目预算的执行率,具有实践和指导意义。     

Designing Emission Charging Schemes for Transportation Conformity

This paper designs emission charging schemes to ensure traffic emissions not exceeding the emission budgets in emission regulation areas. In a network where all links are tollable, we prove that, under mild conditions, there exists a non‐negative link‐based toll scheme that achieves the transportation conformity requirement while minimizing total emissions. We further consider only tolling in the emission regulation areas and formulate a model to determine optimal area‐based emission charges to ensure the conformity. The model is formulated as a mathematical program with complementarity constraints. A solution framework is developed to solve the model, leveraging on a derivative‐free pattern search algorithm and integrating MOVES to estimate vehicular emissions more accurately. The proposed models are demonstrated on two numerical examples. Copyright © 2013 John Wiley & Sons, Ltd.     

A multi‐class mean‐excess traffic equilibrium model with elastic demand

Recent empirical studies have revealed that travel time variability plays an important role in travelers' route choice decisions. To simultaneously account for both reliability and unreliability aspects of travel time variability, the concept of mean‐excess travel time (METT) was recently proposed as a new risk‐averse route choice criterion. In this paper, we extend the mean‐excess traffic equilibrium model to include heterogeneous risk‐aversion attitudes and elastic demand. Specifically, this model explicitly considers (1) multiple user classes with different risk‐aversions toward travel time variability when making route choice decisions under uncertainty and (2) the elasticity of travel demand as a function of METT when making travel choice decisions under uncertainty. This model is thus capable of modeling travelers' heterogeneous risk‐averse behaviors with both travel choice and route choice considerations. The proposed model is formulated as a variational inequality problem and solved via a route‐based algorithm using the modified alternating direction method. Numerical analyses are also provided to illustrate the features of the proposed model and the applicability of the solution algorithm. Copyright © 2012 John Wiley & Sons, Ltd.