关于红色旅游区资金筹集问题的研究——以江西为例

研究红色旅游区如何筹集资金和如何使用资金问题,在如何筹集资金方面,作者认为可从七个方面着手,在投资方面要注意五个问题:要先制定一个切实可行的近、中长期发展规划;不能只顾眼前不考虑长远;要视旅游区的资源和市场情况而定;与邻近旅游区投资合作经营;不忽视对人力资源的投资.     

连续刚构桥健康监测数据的采集和处理

文章根据连续刚构桥的构造和受力特点,介绍了某连续刚构桥健康监测系统的数据采集方式和定时采集制度,同时对应力、挠度和加速度数据的后期处理方法进行了探讨,为其他同类桥梁的健康监测提供依据。     

Freeway drivers’ willingness-to-pay for a distance-based toll rate

This paper applies the contingent valuation method to investigate and estimate the toll rate that freeway drivers are willing-to-pay (WTP) for each unit of distance they travel, after switching from per-entry based to distance-based tolling system. Due to a large portion of respondents who are unwilling to pay a toll at all, we adopt the spike model to avoid estimation errors. The estimation results show that average willingness to pay toll is TWD¹ 0.86/km, which can be refined further to TWD 0.81/km for short distance travelers, TWD 0.93/km for medium distance travelers, and TWD 0.97/km for long distance travelers. Additionally, the WTP toll rate of short distance travelers is significantly different on public holidays but not during peak hours. In contrast, the WTP toll rates of medium and long distance travelers significantly different during peak hours but not on public holidays.     

An analysis of the factors influencing differences in survey-reported and GPS-recorded trips

Recent advances in global positioning systems (GPS) technology have resulted in a transition in household travel survey methods to test the use of GPS units to record travel details, followed by the application of an algorithm to both identify trips and impute trip purpose, typically supplemented with some level of respondent confirmation via prompted-recall surveys. As the research community evaluates this new approach to potentially replace the traditional survey-reported collection method, it is important to consider how well the GPS-recorded and algorithm-imputed details capture trip details and whether the traditional survey-reported collection method may be preferred with regards to some types of travel. This paper considers two measures of travel intensity (survey-reported and GPS-recorded) for two trip purposes (work and non-work) as dependent variables in a joint ordered response model. The empirical analysis uses a sample from the full-study of the 2009 Indianapolis regional household travel survey. Individuals in this sample provided diary details about their travel survey day as well as carried wearable GPS units for the same 24-h period. The empirical results provide important insights regarding differences in measures of travel intensities related to the two different data collection modes (diary and GPS). The results suggest that more research is needed in the development of workplace identification algorithms, that GPS should continue to be used alongside rather than in lieu of the traditional diary approach, and that assignment of individuals to the GPS or diary survey approach should consider demographics and other characteristics.     

对我国高速公路实行计重收费的思考

通过车型分类和计重收费两种收费方式的比较,从而为车辆超限超载问题的解决提供参考。     

国内某电厂配套码头工程设计

综合分析国内某电厂码头工程的总平面布置、装卸工艺、电厂重大件吊装、结构设计、环保设计等,创新性地提出将电厂码头与取水口一体化布置以及利用卸煤码头平台进行电厂重大件吊装的方案,并提出多项优化码头布置的合理措施。节约了长江岸线资源,减少粉尘和水体污染,降低工程总投资,可供同类工程借鉴。     

The environmental costs and economic implications of container shipping on the Northern Sea Route

The Northern Sea Route (NSR) has tremendous potential for ocean shipping between Europe and Asia due to the savings from shorter transit time and distance. However, the Arctic area is environmentally vulnerable and thus there is a trade-off between NSR’s impacts on environment vs. its economic benefits, especially when compared with the traditional route, such as through the Suez Canal Route (SCR). This study estimates the market shares of different transport modes and alternative shipping routes for the container transport market between Europe and Asia, and the resulting environmental costs. Our result suggests that NSR can be a viable option under the status quo. However, its environmental costs tend to be higher than SCR due to small ship size and low load factor in the present, thus the development of NSR would lead to worse environment outcomes. If these issues can be resolved, NSR can benefit from lower operational and environmental costs, which will lead to higher market share and social welfare. Otherwise, increased use of NSR may lead to higher total environment costs than the status quo.     

降低公路收费标准的可行性分析

在公路资产的构成中,由于引进了社会资本的投入,不可避免出现公路收费问题.本文针对公路收费问题,分析了公路产品的特点:排他性、非竞争性和外部特征,通过对公路产品外部特征所产生的效益的分析,应用技术经济和动态分析的方法,从理论上讨论了降低公路收费标准存在的合理性和可能性.     

Incompleteness and clarity in bus contracts: Identifying the nature of the ex ante and ex post perceptual divide

In the transport sector, many types of contracts exist. Some are very precise, and strive for completeness; others are very ‘light-weight’ and are incomplete. Bus and coach contracts, won through competitive tendering or negotiation, are typically incomplete in the sense of an inability to verify all the relevant obligations, as articulated through a set of deliverables. This paper draws on recent experiences in contract negotiation, and subsequent commitment in the bus sector, to identify what elements of the contracting regime have exposed ambiguity and significant gaps in what the principal expected, and what the agent believed they were obliged to deliver. We develop a series of regression models to investigate the extent of discrepancy between the principal and the agents perceived ‘understanding’ of contract obligations. The empirical evidence, from a sample of bus operators, is used to identify the extent of perceived incompleteness and clarity across a sample of bus contracts. A noteworthy finding is the important role that a trusting partnership plays in reducing the barriers to establishing greater clarity of contract specification and obligations, and in recognition of the degree of contract completeness.     

连云港市某核算单元污水集中收集处理率影响因素分析

以连云港市大浦污水处理厂为例,提出现状梳理、问题分析、解决方案、组织实施的工作思路。基于“源-网-厂-河”系统思维,由河道-污水处理厂-泵站-管网-排水户逐级溯源,对各污水收集系统进行分析,重点探究低效能片区形成的原因,精准施策,达到区域污水集中收集处理率明显提高,且污染物削减率大幅提升的目的。