旅游城市高铁站站前广场综合交通改善设计——以黄山北站为例

在全国高铁网络逐步构成的背景下,旅游城市高铁站站前广场在高铁运营后逐渐显现出了设施配套不足、交通组织混乱等问题.以黄山北站为例,通过分析黄山北站客流特征、站前广场交通设施现状、交通组织及运行,对黄山北站客流进行了预测,对交通设施规模进行了测算.根据预测结果,提出了交通改善策略,并从设施布局、交通组织等方面提出了近期和远期的具体交通改善方案.     

基于智能体模拟的浮动式停车价格实施效果研究

在城市机动车保有量快速增长的背景下，制定合理的停车价格对缓解停车难问题具有重要的作用. 基于多智能体的建模方法，结合典型城市商业区停车调查数据搭建仿真环境，通过编程实现停车过程中的行为决策规则，建立浮动式停车价格下的路内停车模拟平台，并对浮动式停车价格的实施效果进行研究. 模拟结果表明，浮动式停车价格策略的实施不仅使路内停车资源的利用更为均衡，区域内车位紧张状况有所缓解，停车寻泊时间有所减少，还提高了周边道路上车辆运行速度. 本研究可以为提高停车效率、缓解区域道路交通拥堵提供一定决策建议.     

公路路基排水设施及其施工方法研究

工程实践表明，积水是影响公路使用寿命的重要因素。鉴于此，依据新疆地区特殊的地质条件，提出适合该地区的公路路基排水技术，并探讨排水设施的施工方法，可为新疆地区相关工程项目提供参考与借鉴。     

Exploring Participants' Views of Participatory Coastal and Marine Resource Management Processes

It is generally accepted that stakeholders, including resource users, scientists, conservationists, government and nongovernment organizations, and the general public, can contribute positively to management processes and may even benefit from such processes. However, we continue to struggle with how to design processes that effectively involve these stakeholders. To illuminate potential improvements to traditional processes, this study examines participants’ perceptions of coastal and marine resource management processes. Through semi-structured interviews, respondents describe how they feel about various elements of participatory processes. Responses offer insight into the multiple dimensions of participatory process elements described in the literature, such as influence on decisions, exchange of information, access to the process, transparent decision making, and others. Responses also identify additional elements that have received limited attention in the public-participation literature: hosting meetings at various scales, recognizing differences within interest groups, and considering the context of a process. Results from this study will help to inform the design of participatory coastal and marine resource management processes.     

港口规划环境影响评价中公众参与模式探讨

国家对环境影响评价工作中的公众参与非常重视,相继出台多项相关法规政策。目前对于建设项目环境影响评价中公众参与的形式和方法国内外已有一些理论研究和较多的实践应用,但对于规划环境影响评价中采取何种有效的公众参与模式尚需深入研究。通过对国内十多个港口总体规划环评案例进行归纳总结,阐述了港口规划环评公众参与的目的与意义,分析提出了港口规划环评公众参与的工作原则、工作方案和调查意见统计分析方法,并针对港口规划环评公众参与的重点和难点进行了分析研究,探讨港口规划环评中开展公众参与的有效方法和途径。     

Dynamic demand estimation and microscopic traffic simulation of a university campus transportation network

Abstract

This article documents the authors' experience with the modeling, simulation, and analysis of a university transportation system, using the TRansportation ANalysis and SIMulation System (TRANSIMS). The processes of data preparation and network coding are described, followed by the algorithm developed to estimate the dynamic 24-hour demand, which includes a procedure for estimating the ‘desirability’ of the different parking lots from readily available data. The dynamic demand estimation algorithm is validated by comparing estimated and observed parking lot occupancies, where it is shown that the algorithm is capable of replicating observed results. Finally, an example is included to demonstrate how the developed model can be used in campus transportation planning. Besides serving as a first case study for using TRANSIMS to model a university campus, the study's contributions include the development of a procedure for parking lot desirability ranking and a practical procedure for estimating dynamic demand on university campuses.     

Flexible feeder transit route design to enhance service accessibility in urban area

To improve the accessibility of transit system in urban areas, this paper presents a flexible feeder transit routing model that can serve irregular‐shaped networks. By integrating the cost efficiency of fixed‐route transit system and the flexibility of demand responsive transit system, the proposed model is capable of letting operating feeder busses temporarily deviate from their current route so as to serve the reported demand locations. With an objective of minimizing total bus travel time, a new operational mode is then proposed to allow busses to serve passengers on both street sides. In addition, when multiple feeder busses are operating in the target service area, the proposed model can provide an optimal plan to locate the nearest one to response to the demands. A three‐stage solution algorithm is also developed to yield meta‐optimal solutions to the problem in a reasonable amount of time by transforming the problem into a traveling salesman problem. Numerical studies have demonstrated the effectiveness of the proposed model as well as the heuristic solution approach. Copyright © 2015 John Wiley & Sons, Ltd.     

A study on smart parking guidance algorithm

Parking problem becomes one of major issues in the city transportation management since the spatial resource of a city is limited and the parking cost is expensive. Lots of cars on the road should spend unnecessary time and consume energy during searching for parking due to limited parking space. To cope with these limitations and give more intelligent solutions to drivers in the selection of parking facility, this study proposes a smart parking guidance algorithm. The proposed algorithm supports drivers to find the most appropriate parking facility considering real-time status of parking facilities in a city. To suggest the most suitable parking facility, several factors such as driving distance to the guided parking facility, walking distance from the guided parking facility to destination, expected parking cost, and traffic congestion due to parking guidance, are considered in the proposed algorithm. To evaluate the effectiveness of the proposed algorithm, simulation tests have been carried out. The proposed algorithm helps to maximize the utilization of space resources of a city, and reduce unnecessary energy consumption and CO₂ emission of wandering cars since it is designed to control the utilization of parking facility efficiently and reduce traffic congestion due to parking space search.     

公路规划环评中公众参与框架的设计与实施评价

论文分析了环境影响评价中公众参与的现状和国内外发展的状况以及目前存在的问题，对公众参与在环境影响评价中应用的意义和作用进行了探讨，根据公路规划的特点和环境影响提出了提高公众参与有效性的原则和实施框架，建立了对公众参与过程进行评价的模糊综合评价方法和变权评价方法。研究结果对规范公路规划环评中的公众参与以及保证公众参与的有效实施具有现实意义。     

单片机系统利用电话进行远程数据通信的研究

介绍了遥测、遥控系统中远程数据通信的基本模式和一般的系统组成结构;论述了有线电话MODEM的基本工作原理和常用工作方式;给出了遥测终端机中的单片机与MODEM的接口方法和AT指令集的用法及通信程序设计。