GIS as a tool for selection of sample areas in a travel behaviour survey

Whilst Geographical Information Systems (GIS) are now used more commonly in transport research and modelling, GIS techniques were used in this study to select similar sample areas (in terms of geography and census attributes) for data collection. For this purpose, a GIS mapping system for Tyne and Wear, UK, was built. The system included topographic maps of the area, boundary maps of Lower Super Output Areas (LSOA), and aggregated census statistics datasets for LSOAs. Criteria relating to census attributes and the nature of transport were employed to identify ‘hotspots’ by GIS enquiry to provide suitably matching areas, which then formed the basis of the sampling frame.The research project was concerned with commuters’ travel choices and so the study needed to identify commuters. In this case-study context, it is not possible to select fully homogeneous areas, so the GIS ‘hotspots’ approach allowed the identification of areas where there were a high concentration of commuters with multiple alternatives for travel to work. A pilot study showed that the GIS origin-based approach was good in collecting a balanced sample, as compared to an employment-based destination survey. This paper explores the benefits and costs of these origin- and destination-based approaches. In the origin-based home sample, households with paper-based surveys were targeted after identification by GIS. This origin approach requires more data preparation compared to the alternative of an employer-based, destination-based sample that could use online survey methodologies.The paper concludes by identifying GIS as an important tool in selecting a sample area for data collection using multiple criteria, but argues that plans for data collection need to be flexibly constructed to overcome unexpected challenges. Although this paper focuses on a transport research case study, the methodology presented can be applied to survey design and selection of sample areas in other disciplines.     

努力实现“四个”转变推动地勘经济科学发展

从当前产业发展情况和今后改革要求来看,宁夏地矿局依然存在着主业不强、结构不优、质量不高、层次较低、后劲不足、积累很少、可持续发展能力不强的状况。因此,必须下决心转变地勘经济发展方式,增强可持续发展的能力,在地勘经济发展的结构上,由单纯追求数量的经济发展模式向追求数量、结构、质量、效益四位一体的发展模式转变;在地勘经济发展方式上,由只从事勘查的“打工”经济模式向探采一体化可持续发展模式转变;在地勘经济管理上,由粗放式、以包代管式管理模式向精细化、科学化管理模式转变;在推动地勘经济发展的思维方式上,由按部就班、自我封闭的传统思维定势向与时俱进、善于变革、勇于开拓创新的模式转变。     

天保工程区域可持续发展评价研究——以双丰林业局为例

根据区域可持续发展和工程评价理论,采用层次分析和综合评价相结合的评价方法,通过对天保工程要素维、空间维和时间维等三个维度的分析,从目标层、状态层、能力层、指标层构建其评价指标体系。计算双丰林业局天保工程可持续发展能力的综合指数,进而对逐年的可持续发展能力展开评价。     

The out-of-sample forecasting performance of nonlinear models of regional housing prices in the US

This article provides out-of-sample forecasts of linear and nonlinear models of US and four Census subregions’ housing prices. The forecasts include the traditional point forecasts, but also include interval and density forecasts, of the housing price distributions. The nonlinear smooth-transition autoregressive model outperforms the linear autoregressive model in point forecasts at longer horizons, but the linear autoregressive and nonlinear smooth-transition autoregressive models perform equally at short horizons. In addition, we generally do not find major differences in performance for the interval and density forecasts between the linear and nonlinear models. Finally, in a dynamic 25-step ex-ante and interval forecasting design, we, once again, do not find major differences between the linear and nonlinear models. In sum, we conclude that when forecasting regional housing prices in the United States, generally the additional costs associated with nonlinear forecasts outweigh the benefits for forecasts only a few months into the future.     

Typologies of Banner Advertisements’ Attributes: A Content Analysis

The web has received significant amount of attention from advertising and consumer researchers investigating the impact of banner advertisement on consumers’ psychological and behavioral responses. However, no typology of banner advertisement has been identified yet, and the selection of banner advertisements as advertising stimuli has been carried out on the premise of personal judgment rather than scientific methodology. The identification of typology is important because different banner advertisement, such as static and pop-up, elicit different consumers’ responses. In addition the identification of a typology constitutes an advance to mid-range theory in a research domain. Hence, the purpose of this research is to identify the typologies of banner advertisements’ attributes such as type, number, shape, location, and size using content analysis. Specifically, nine banner advertisement types are identified as well as the typology of number, shape, location, and size of banner advertisements. Contributions of the research are discussed.     

浅析影响科技成果转化的几个不利因素--以华东石油局为例

本文以华东石油局科技成果应用转化情况为例，分析研究了影响科技成果转化的因素和差距，提出了缩小差距，提高科技成果转化率的相应措施。     

第五次全国人口普查表长表抽样方法

20 0 0年第五次全国人口普查首次采用了普查表长短表技术。论述了人口普查长短表技术的特点、组织实施方法、长表抽样方法以及长表抽样误差分析     

人口普查中遗漏人口数的估计

研究目标:用完整遗漏估计量替代目前使用的未匹配遗漏估计量、逆记录检查遗漏估计量和平衡推算遗漏估计量。研究方法:采取文献解读、成果借鉴和移植及实地调查相结合的方法,研究完整遗漏估计量及其方差估计。研究发现:人口普查遗漏估计不只是要提供遗漏估计值,还要揭示遗漏的原因及其遗漏者的特征;构造普查遗漏估计量,既要包括登记在事后计数调查人口名单而未登记在普查名单的单重遗漏人口,还要包括同时遗漏于这两项调查名单的双重遗漏人口。研究创新:提出完整遗漏估计量。研究价值:完整遗漏估计量有望应用于中国2030年普查遗漏估计,开创世界人口普查遗漏估计应用完整遗漏估计量的先河。     

加快地勘单位企业化经营的基本思路

本文对地勘队伍属地化后,如何加快企业化经营进程,结合山东省地勘局的实际做法提出了基本思路.     

加快发展辽宁有色地勘产业经济的探索与实践

文章介绍了辽宁有色地质勘查局在实行属地化管理后 ,根据内部要素和市场条件 ,制定符合实际的发展战略 ;优化经济结构 ,发展优势产业 ;提高生产、科研和管理能力 ;彻底转换经营机制 ;进行三项制度改革的一些具体作法。