全文获取类型
收费全文 | 107篇 |
免费 | 5篇 |
专业分类
公路运输 | 13篇 |
综合类 | 2篇 |
水路运输 | 31篇 |
铁路运输 | 1篇 |
综合运输 | 65篇 |
出版年
2022年 | 2篇 |
2021年 | 4篇 |
2020年 | 4篇 |
2019年 | 1篇 |
2018年 | 5篇 |
2017年 | 1篇 |
2016年 | 8篇 |
2015年 | 2篇 |
2014年 | 1篇 |
2013年 | 20篇 |
2012年 | 3篇 |
2011年 | 9篇 |
2010年 | 5篇 |
2009年 | 4篇 |
2008年 | 10篇 |
2007年 | 3篇 |
2006年 | 2篇 |
2005年 | 1篇 |
2004年 | 2篇 |
2003年 | 3篇 |
2002年 | 1篇 |
2000年 | 5篇 |
1999年 | 1篇 |
1998年 | 2篇 |
1996年 | 1篇 |
1988年 | 1篇 |
1986年 | 1篇 |
1985年 | 4篇 |
1984年 | 1篇 |
1983年 | 1篇 |
1981年 | 1篇 |
1980年 | 2篇 |
1979年 | 1篇 |
排序方式: 共有112条查询结果,搜索用时 15 毫秒
11.
Fernando Marín Martínez Isabel García Gutiérrez Alberto Ortiz Oliveira Luis Miguel Arreche Bedia 《运输规划与技术》2013,36(4):261-284
Freight transfer operations are critical in combined transport networks. In this paper a simulation model and modelling approach to the transfer of cargo between trains at rail terminals is presented. The model is used to study the Port-Bou terminal, the main intermodal terminal at the Spanish-French frontier. Four different gantry crane operation modes to interchange containers between trains are evaluated. These operation rules are tested in several scenarios to examine the critical factors of the system and the best operation rule for each situation. Latest generation software is used to develop the model that incorporates modular programming and enhanced graphic systems for output representation. It allows a dynamic display of the simulated system and, likewise, the possibility of developing modules that can be reused in other studies. The research shows how simulation can be a useful planning tool in the rail transportation context. 相似文献
12.
Emilio Ferrari Riccardo Manzini Arrigo Pareschi Alessandro Persona Alberto Regattieri 《先进运输杂志》2003,37(3):243-272
The present research deals with car pooling as a means of making better use of existing infrastructure and as a means of reducing traffic congestion with all its associated induced effects. Car pooling schemes involve several drivers getting together to share a private vehicle simultaneously, in order to reach their destinations points according to a semi‐common route rather than each driver using their own vehicle. The Car Pooling Problem belongs to the non‐polynomial computational complexity family of operations problems. In the current literature there are only a few studies on this optimization problem: the research group has designed several different new automatic and heuristic data processing routines to support efficient matching in car pool schemes. These are based on savings functions and belong to two distinct macro classes of algorithms to give two different modelings of this problem. They offer average savings of more than 50% in traveled distances demonstrating the effectiveness of a trivial matching scheme for real applications. 相似文献
13.
Ney Roitman Carlos Magluta Ronaldo C. Batista Ricardo W. Capllonch 《Marine Structures》1996,9(10):991-1002
The structural elastic behaviour of steel pipelines during on-bottom pull-in procedure is investigated experimentally by using small scale models. Despite the lack of a sea-bed soil pipeline interaction effect in the model, it is possible to show that the unevenness of the sea-bed surface and the non-uniform distribution of friction forces can lead to large deflection bending stresses, higher than the numerical results yielded by standard software packages commonly used for design calculations. Due to foreseen difficulties in overcoming the drawbacks in practical and numerical procedures, the off-bottom pull-in operation arises as an attractive alternative even for shallow waters. 相似文献
14.
The Chilean government decided to modernize Santiago's entire public transport system, integrating the underground and the private bus networks based on a structure of trunk and feeder services, and a fare-payment by touchless smart card. The new, integrated transit system, known as Transantiago, very soon ran into serious problems that alienated much of its user base and significantly lowered the government's approval ratings. This paper recounts how Transantiago was planned and designed and then discusses its evolution after implementation. It concludes with suggestions for the Transantiago authorities and lessons to be learned from this traumatic process. 相似文献
15.
The transportation fare system influences the mobility of a region and the life quality of its inhabitants. This study aims to evaluate a region's optimal fare system by using the analytic hierarchy process, based on a survey among transportation experts, divided into three categories: operators, professors/consultants and government officials. The results are presented divided by category and overall, and the performance of the most important relative criteria to establish a fare system is determined. The most important criterion according to all the selected experts was the fare price, with 21.5%. The fare system determined as the best was distance/zone (31.1%) and the worst was a flat fare system (7.2%). In addition, we show the influence of the fare price criterion in each fare system through sensitivity charts and highlight its importance for all three groups of experts to evaluate the fare system. 相似文献
16.
Modification of the Highway Capacity Manual two‐lane highway analysis procedure for Spanish conditions
下载免费PDF全文
![点击此处可从《先进运输杂志》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Ana T. Moreno Carlos Llorca Scott S. Washburn José E. Bessa David K. Hale Alfredo Garcia 《先进运输杂志》2016,50(8):1650-1665
The US Highway Capacity Manual (HCM) methodology is used in Spain to evaluate traffic operation and quality of service. The effect of passing manoeuvre on two‐lane highway operational performance is considered through adjustment factors to average travel speeds and percent time spent following. The procedure is largely based on simulations in TWOPAS and passing behaviours observed during US calibrations in the 1970s. It is not clear whether US driving behaviour and vehicles' performance are comparable with Spanish conditions. The objective of this research is to adapt the HCM 2010 methodology to Spanish driver behaviour, for base conditions (i.e. no passing restrictions). To do so, TWOPAS was calibrated and validated based on current Spanish passing field data. The calibration used a genetic algorithm. The case study included an ideal two‐lane highway with varying directional traffic flow rate, directional split and percentage of trucks. The updated methodology for base conditions is simpler than the current HCM 2010 and does not rely on interpolation from tables. Copyright © 2016 John Wiley & Sons, Ltd. 相似文献
17.
This paper studies the supply variables that influence the destination and route choices of users of a bicycle sharing system in the Chilean city of Santiago. A combined trip demand logit model is developed whose explanatory variables represent attributes relating to the topology of the possible routes and other characteristics such as the presence of bikeways, bus service and controlled intersections. The data for the explanatory variables and system users were collected through field surveys of the routes and interviews conducted at the system stations. The results of the model show that proximity to stops on the Santiago Metro and the existence of bikeways are the main factors influencing destination and route choices. Also indicated by the model estimates are gender differences, a preference for tree-lined routes and an avoidance of routes with bus services. Finally, the outcomes reveal considerable potential for the integration of bicycle sharing systems with Metro transit. 相似文献
18.
19.
Carlos Alberto Riveros Tomoaki Utsunomiya Katsuya Maeda Kazuaki Itoh 《Journal of Marine Science and Technology》2010,15(1):44-53
Several research efforts have been directed toward the development of models for response prediction of flexible risers. The
main difficulties arise from the fact that the dynamic response of flexible risers involves highly nonlinear behavior and
a self-regulated process. This article presents a quasi-steady approach for response prediction of oscillating flexible risers.
Amplitude-dependent lift coefficients are considered, as is an increased mean drag coefficient model during synchronization
events. Experimental validation of the proposed model was carried out using a 20-m riser model excited by forced harmonic
vibration at its top end. Large variations in the hydrodynamic force coefficients, a low mass ratio value, and synchronization
events are the main features of the model presented in this article. Experimental validation was provided for the asymmetric,
transverse, diagonal, and third vortex regimes. 相似文献
20.
This article presents a summary of the analyses and set of recommendations given by a committee of transit specialists gathered by the Minister of Transport of Chile aiming at improving Transantiago, the new transit system recently inaugurated for Santiago. This summary focuses on those recommendations directed towards improving the efficiency, service quality and sustainability of mass public transportation systems in major cities in the developing world and that could be implemented in a short term (within two years). Three broad dimensions of public transit are considered: competition and regulation; investment, financing, fares and subsidies; and the operation and use of infrastructure, design, inspection and control. Although the study grew out of the needs and characteristics of a city such as Santiago (Chile), and of the virtues and deficiencies of Transantiago, much of the analyses and recommendations could be adopted and implemented in the major cities of developed countries in Europe, North America and Asia. 相似文献