Assessing carbon reduction effects toward the mode shift of green transportation system

Plans are underway to introduce green transportation systems at Taiwan's famous scenic spot, Sun Moon Lake, to reduce carbon emissions. Carbon reduction effects after changing the current lake tour modes are assessed using a nested logit model with a stated preference survey, which investigated tourists' choice preferences. The empirical results reveal that the modes of electric bus, electric vehicle sharing, and bike are clustered in the same competitive group. Travel cost, in‐vehicle travel time, and out‐vehicle travel time are found to be statistically significant with the expected negative effects. In particular, the attribute of carbon reduction is only significant for green tourists, who are willing to pay US$ 3.5/kg of carbon saved. The result indicates that more efficient carbon reduction is possible by restricting the usage of gasoline vehicles rather than improving the service levels of low‐carbon modes. Notably, the effect of parking charges on emission reduction is equal to the amount of carbon dioxide absorbed by 4511 trees per day. Copyright © 2016 John Wiley & Sons, Ltd.     

甘肃省公路地质灾害综合发育强度指数计算方法

在甘肃公路地质灾害类型及区划研究基础上,对各类致灾因子强度进行分级,并进行无量纲化标度,利用数学综合统计分析原理,提出甘肃省公路地质灾害综合发育强度指数计算方法.     

利益主体视角下助学贷款困境分析

国家助学贷款是国家为资助高校贫困生顺利完成学业而推出的重要政策,是集政策、福利、教育、金融于一体的复杂混合工具,其利益主体涉及政府、银行、高校和学生四大群体。文章根据助学贷款过程中的现实性问题分析,深层次地挖掘了当前国家助学贷款存在的困境根源,以期为我国助学贷款政策提供一个高效的实施平台。     

基于位置服务的智能化出租车调度系统研究

针对城市客运出租车空驶率偏高等问题,提出基于位置服务的智能化出租车自主调度系统.分析了目前基于位置服务的技术特点及高效出行系统的需求,研究了系统的逻辑结构,包括应用层、系统服务层和数据层,并提出了系统的物理架构和实现机理.利用Google Maps API实现了智能化出租车调度系统的移动客户端和计算机客户端的开发.