浅析项目法人制对公路工程造价的影响

文章通过分析项目法人制的利弊,提出在项目法人制管理下对工程造价控制的对策和建议。     

浅谈公路路基填筑技术

本文就公路路基填筑技术进行简单介绍,探讨在填筑准备阶段的技术管理。分析了软土地基处理技术以及强夯法处理湿陷性路基技术。     

网络流量测量研究综述

随着网络技术的发展，新的网络流量测量技术不断涌现，其中一些研究成果已被采纳并在设备中实现。文章介绍了网络测量的国内外研究现状，总结和概括了已有的网络流量测量技术特点，并对该领域的关键技术和难点问题进行了分析。     

Road safety impacts of the motorcycle in Brazil

Brazil has had high indices of traffic injuries and deaths since the 1950s, mostly related to the increasing and irresponsible use of the automobile. Upon approval of the Brazilian Transit Code (CTB) in 1997, traffic injuries and deaths began to diminish, despite an increase in vehicle fleet size, a phenomenon that had never occurred previously. Concurrently, starting in 1991 and with a great intensity after 1996, there has been a sizeable increase in motorcycle production and use, facilitated and encouraged by public officials. Between 1995 and 2000 annual sales figures for motorcycles doubled and reached 2 million units in 2008. Traffic deaths associated with motorcycles increased exponentially, rising from 725 in 2006 to 10,143 in 2010, eliminating the advances gained by the CTB in reducing auto-related injuries. This article analyses the process and its impacts on road safety. The first part summarises the main public policy decisions related to the theme. Part two analyses changes in traffic safety after the introduction of this new technology. Part three looks at the possible political, economic and social motives that lie behind this process. The final part suggests solutions to the great prejudice caused to society and the nation.     

Assessment of non-recurrent congestion caused by precipitation using archived weather and traffic flow data

Since precipitation has a negative impact on traffic congestion, there have been various studies for modeling the relationship between precipitation and its impact on traffic flow. However, due to limitations on existing data, none of the previous studies have accounted for the estimation of the total delay caused by precipitation. The objective of this study is to estimate the non-recurrent traffic congestion on freeways caused by precipitation. To accomplish this objective, archived weather and traffic data for the year 2008 from the Korean Freeway Systems was collected and analyzed. As a result, non-recurrent traffic congestion was about 1.6 million vehicle-hours due to rainfall and 186,000 vehicle-hours due to snowfall in 2008. In addition, simple analyses were performed to describe the average non-recurrent traffic congestion per unit distance as a function of precipitation and a function of the time period of precipitation. Although precipitation events might not be handled by human efforts, these results will assist in making strategic plans such as active speed management and contingency planning for mitigating traffic congestion due to precipitation.     

城市公路客运枢纽布局优化与发展趋势探讨

随着城市化进程的加快和城市空间的不断拓展，城市公路客运枢纽面临着提高城市交通运输效率和交通服务水平、改善城市交通环境与交通拥堵等难题。通过总结当前广州市公路客运枢纽在布局及运营方面存在的问题，借鉴国内外先进经验，提出城市公路客运枢纽的布局与发展应符合一体化、信息化、低碳化要求，并阐述了广州市公路客运枢纽布局优化与发展措施，可为国内城市公路客运枢纽的布局优化与发展决策提供参考。     

我国铁路集装箱运输中存在的问题与对策研究

铁路集装箱运输在我国铁路货运中的地位起来越重要，但由于我国铁路集装箱运输起步较晚，还存在很多不足之处。分析了我国铁路集装箱运输中存在的问题，并对我国铁路集装箱运输发展的对策进行了探讨。     

兰州市公用机械式立体停车库规划研究

随着经济的快速发展。停车难成为城市发展中一个亟待解决的问题，机械式立体停车库是城市停车场的一种形式，具有占地面积小、空间利用率高等优势，在当前城市用地资源日趋紧张的情况下，从城市交通总体角度规划一定数量的公共类机械式立体停车库，缓解城市交通压力。文章以兰州市重点区域为例，分析了城市机械式立体停车库应用规划研究，并对兰州市重点区域进行了具体规划，以推动停车科技产业发展。可有效缓解兰州市停车难现状。     

北京交通拥堵的五种成本分析

以科学发展观为指导，以发展现代交通业为目标，以实现民众的福祉为宗旨，着眼于解决城市交通拥堵问题，促进我国交通事业的又快又好发展。本研究从拥堵经济成本（JEC）、社会成本、环境成本、健康成本与焦虑成本五种分析，试图解读交通拥堵对经济社会带来的伤害。     

旅游交通系统的体验优化配置

旅游交通系统是旅游体验的重要组成部分，从旅游本质出发对旅游交通系统进行体验化的设计成为促进旅游业新一轮发展的重点。在明确“旅游交通系统”概念的基础上，分析了旅游交通系统的优化要素，提出了“旅游体验路径”理论，并尝试对旅游交通系统的基本要素进行体验优化配置，以便使“交通”与“旅游”更好地融合。