高速公路建设项目投资与风险管控分析

高速公路作为我国经济发展的重要载体,高速公路项目建设的好坏直接影响我国经济发展建设。以高速公路建设项目投资主体为着手点,对当前投资资金管理方式展开分析,并提出有关高速公路建设项目投资风险控制的实施策略,确保高速公路建设项目投资风险得到有效控制,从而提高高速公路工程建设项目的经济效益。     

浅谈驻地办监理日志

完善的质量控制体系和符合监理工作要求的监理日志,才能监理出好工程,才能更好地加强监理单位与业主的沟通联系,使建设项目在质量、进度、投资、安全等方面得到更有效的控制,使工程建设投资早日产生好的经济效益和社会效益。     

公路设计中项目的投资控制

在新的发展时期,交通工作面临着机遇和挑战.如何处理好公路建设与环境相和谐、资源有效利用,是公路建设者面临的重大课题.而公路设计是控制整个项目投资控制的关键,设计工作者应充分了解项目特点,合理灵活应用标准指标,注重细节设计,从而有效控制公路工程项目投资.     

浅谈上海轨道交通建设工程的投资控制

结合上海轨道交通工程建设阶段投资控制的概况,介绍了各阶段投资控制的重点、投资目标值的建立、主要投资费用的确定与控制等过程,分析了工程施工准备阶段和实施阶段投资控制的特点,强调了对工程建设投资进行主动控制的重要性。     

谈公路工程施工过程中成本控制要点

公路工程施工项目的成本控制在整个项目目标管理体系中处于十分重要的地位,工程项目的成本控制的好坏,直接影响到工程利润的高低。必须在工程施工中全方位、全过程严格把关,才能做好项目的成本控制工作。     

高速公路造价咨询工作难点分析

高速公路建设投资大、工期长、工程量大,提前预测和分析造价咨询工作中的难点是合理控制工程造价的关键,根据济莱高速的特点,对造价咨询工作的难点进行了分析总结.     

对城市轨道交通建设项目全过程投资控制必要性的认识

针对近年来城市轨道交通建设项目投资控制方面存在的问题,介绍了如何在轨道交通建设项目设计咨询、设计和施工阶段实施全过程投资控制的主要内容,强调了对轨道交通建设项目实行全过程投资控制的必要性,并提出了工程设计咨询、监理、审价等项目控制环节无法取代全过程投资控制的观点。     

工程建设项目前期管理工作中的问题及措施浅析

工程建设项目的前期管理在整个工程项目的全周期都起着至关重要的作用,其对整个项目的进度、质量、环保及投资控制等均有直接影响。因此,做好工程建设项目的前期管理工作,是整个工程建设项目管理的重要一环。本文结合实际案例,讲解了项目建设前期工作中存在的问题及注意事项,以期为项目前期管理工作的改进提供参考。     

浅谈县乡公路工程监理工作

工程监理制度对强化公路工程质量管理、控制工期和造价,提高投资效益、提高施工管理水平,有着明显的作用.根据县乡公路、桥梁工程监理工作的经验,就监理工作的主要任务、原则和要点提出了看法和建议.     

青海省PPP公路项目超出概算风险控制研究

公路建设项目工程投资控制,一般分为工可研、设计阶段、招标阶段的投资控制以及施工阶段等投资控制。其中设计阶段的投资控制最为关键。设计阶段通过编制初步设计概算及施工图预算进行投资控制,估算作为发改委等管理部门批复总投资的依据,对控制总投资有着决定性的作用。实践中,通常较政府投资项目,诸多PPP公路项目因客观或主观原因面临超出概算(以下简称“超概”)风险,导致项目无法正常推进。本文以青海D高速公路项目为例分析青海省PPP公路项目超概的原因、面临的风险,并提出解决思路和预防措施。     

Assessment of an eastern European city's public transport system

The paper examines the present quality of public transport services in Budapest and compares that to the impact of growing car ownership. A review is made of the city's transport plans and future investment proposals and these are assessed in light of public transport's present and likely future competitive position compared to private cars. The paper concludes that much of the proposed investment in a metro system will not maintain public transport's competitive position in the face of rising car ownership and that other measures and investments might be more effective.     

广西高速公路工程质量投资进度三大控制探讨

高速公路工程质量、投资、进度三大控制是工程管理的主要目标,文章运用工程项目全面管理的系统方法,分析了高速公路三大控制中存在的问题,提出了解决思路和建议,可供相关工程管理借鉴.     

大型建设工程项目的设计管理组织研究

研究了大型工程项目设计管理的组织结构及若干个重要的管理流程。大型工程项目的设计管理组织结构中应设置专门的设计协调组、纳入投资监理和业主方的合约财务处参与工作;为确保设计计划管理的执行,要制定专门的设计进度管理流程;必须严格制订和执行施工图质量控制流程,以确保设计成果的可靠性,还应制订设计变更的管理流程,严格控制变更对项目工程进度和投资的影响,并加强业主方项目经理对设计变更的管理和控制。     

市政道路工程造价的有效控制

文章从当前市政道路工程造价文件的编制依据、造价从业人员的素质以及项目建设各阶段呈现的投资控制问题出发,提出实现市政道路工程造价有效控制的措施,为市政道路工程造价管理提供参考。     

Rail-truck multimodal freight collaboration: a statistical analysis of freight-shipper perspectives

Due to the effects of congestion, capacity reduction of truck-freight carriers, growing freight transportation demand, and increasing social and environmental concerns, there is a critical need for freight shippers to improve shipping quality and reduce transportation costs. Rail-truck multimodal freight collaboration can potentially address this need. In this study, we explore freight-shipper perspectives relating to the factors that may foster or impede their usage of rail-truck multimodal freight collaboration services, and the correlations of their operational and behavioral characteristics with these factors. The study provides insights to rail and truck carriers on collaboration mechanisms that can address the needs of freight shippers, including adopting synergistic technology to improve in-transit visibility, accommodating non-containerized cargo, improving the transshipment process, designing service quality control strategies, and constructing investment and revenue-sharing plans.     

Incorporating Knightian uncertainty into real options analysis: Using multiple-priors in the case of rail transit investment

This paper revisits the real option investment problem from a ‘Knightian’ perspective of uncertainty. We examine the decision to invest in rail transit infrastructure (i.e., transport improvement) by treating population scale and the attitudes of decision-makers or social planners as sources of risk and ambiguity. An α-maxmin multiple-priors expected utility framework is developed to solve for the option value of rail transit investment under Knightian uncertainty. We find that the threshold for investment varies with the ambiguity attitudes (i.e., pessimism or optimism) of decision-makers regarding future population dynamics, and show that option value can in fact either increase or decrease with uncertainty subject to κ-ignorance and ambiguity. We also underline the effect of transport improvement on traffic congestion under various states of nature, and determine the specific population scale ranges for which investment is warranted under (1) risk and (2) Knightian uncertainty. These dynamics are illustrated in a numerical application adapted from a Chinese rail transit initiative specific to the Xiamen region.     

Should ports expand their facilities under congestion and uncertainty?

This paper investigates simultaneous facility investments of risk-averse ports under congestion and uncertain market demand. We set up a two-period game, allowing two ports first choose their facility investment levels, and then decide their cargo-handling amounts and service prices. When investment costs of the two ports are large, the unique equilibrium is no investment. If investment costs of at least one port are small, then one or two ports will invest at equilibria. If both ports invest at equilibrium, they may become worse off than at non-equilibrium of no investment. This means that the ports may face a tradeoff between stability and efficiency. Moreover, we compare the behaviors of risk-averse and risk-neutral ports, as well as risk-averse ports’ behaviors under uncertainty and no-uncertainty. It is found that ports’ risk-averse degrees are the major factor determining their behaviors in different scenarios.     

Transit technology investment and selection under urban population volatility: A real option perspective

This paper addresses transit technology investment issues under urban population volatility using a real option approach. Two important problems are investigated: which transit technology should be selected and when should it be introduced. A real option model is proposed to incorporate explicitly the effects of transit technology investment on urban spatial structure in terms of households’ residential location choices and housing market. The trigger population thresholds for investing in a transit technology project and for shifting from a transit technology to another are explored analytically. Comparative static analyses of the urban system and transit technology investment are also carried out. It was found that (i) transit technology investment can induce urban sprawl; (ii) ignoring the effects of transit technology investment on urban spatial equilibrium can lead to a late investment; and (iii) there is a significant difference in the trigger population thresholds for transit technology shift estimated by the net present value approach and the real option approach.     

Port investments on coastal and marine disasters prevention: Economic modeling and implications

Located along shorelines, seaports are highly vulnerable to coastal and marine natural disasters largely due to climate change. Damage caused by disasters can be prevented or alleviated if sufficient investments are made in a timely manner. However, despite a wide range of investment options and well-developed engineering expertise, port investment on disaster prevention remains a challenging task involving great complexities. This paper develops an integrated economic model for the analysis of disaster-prevention investments at a “landlord” port. It simultaneously considers the uncertainty of disaster occurrence and associated return of prevention investments, the information accumulation and related investment timing, and the benefit spillovers of investment among stakeholders. Our analysis shows that the timing of port investments depends on the probability of disasters. Immediate investment is optimal for disasters with very high probability, while investment should be postponed if such a probability is very low. Optimal timing for cases of intermediate probability cannot be determined analytically, as it is influenced by other factors such as discount rate, information accumulation and efficiency of investments. Positive spillovers between a port and its tenants lead to under-investment, which can be corrected by coordination between stakeholders. However, since there are risks of “overinvestment” (the marginal benefits of investments are zero ex post if there is no disaster), regulatory intervention is not always optimal when the regulator does not have a good understanding of disaster probability distribution. Therefore, scientific research would bring significant economic and strategic value to policy, planning and investment decisions.     

油气管道短距离定向钻套管穿越公路技术

油气管道穿越等级公路时,存在施工周期长、工程投资高、施工风险大等难题,因此探索一种新的施工方式具有较大的实际意义和经济意义。短距离定向钻套管穿越公路技术应用了小型定向钻机,并在确保油气管线距公路路面达到安全距离和公路两侧路边沟渠不受影响的条件下,取消了穿越段两端弹性敷设曲线段,采用了只回拖套管的水平段的施工方式。该施工方式技术措施安全可行,且能缩短施工周期,减少穿越长度,节省工程投资。