scholarly journals Research on Construction Techniques of Hanging Basket in the Bridge Project

2015 ◽  
Vol 2 ◽  
pp. 35
Author(s):  
Junzhuang Wang
Keyword(s):  
Design Principle ◽  
Road Traffic ◽  
Traffic Network ◽  
Site Management ◽  
Bridge Construction ◽  
Construction Technique ◽  
Maximum Extent ◽  
The Road ◽  
Construction Techniques

<p>Under the background of increasingly expanded road traffic network in China, it is highly necessary to construct bridges. Upgrading the bridge construction technique can upgrade the road quality to the maximum extent. In order to upgrade the construction technique, this article elaborates on the construction techniques of hanging basket in four aspects: definition and design principle of hanging basket; key application points of construction techniques of hanging basket in the bridge project; frequent quality accidents and preventive and curative measures of hanging basket; on-site management of hanging basket and upgrading of safety.</p>

scholarly journals Methods for division of road traffic network for distributed simulation performed on heterogeneous clusters

2013 ◽  
Vol 10 (1) ◽  
pp. 321-348 ◽  
Author(s):  
Tomas Potuzak
Keyword(s):  
Road Traffic ◽  
Distributed Simulation ◽  
Computation Time ◽  
Traffic Network ◽  
Traffic Networks ◽  
Computing Environment ◽  
Heterogeneous Cluster ◽  
Heterogeneous Clusters ◽  
The Road ◽  
Road Traffic Networks

The computer simulation of road traffic is an important tool for control and analysis of road traffic networks. Due to their requirements for computation time (especially for large road traffic networks), many simulators of the road traffic has been adapted for distributed computing environment where combined power of multiple interconnected computers (nodes) is utilized. In this case, the road traffic network is divided into required number of sub-networks, whose simulation is then performed on particular nodes of the distributed computer. The distributed computer can be a homogenous (with nodes of the same computational power) or a heterogeneous cluster (with nodes of various powers). In this paper, we present two methods for road traffic network division for heterogeneous clusters. These methods consider the different computational powers of the particular nodes determined using a benchmark during the road traffic network division.

scholarly journals Regional Patch Detection of Road Traffic Network

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Xia Zhu ◽  
Weidong Song ◽  
Lin Gao
Keyword(s):  
Complex Network ◽  
Road Traffic ◽  
Geographic Distance ◽  
Influence Factors ◽  
Impact Factors ◽  
Traffic Network ◽  
The Road ◽  
Key Points ◽  
Path Distance ◽  
Shortest Path Distance

Road traffic network (RTN) structure plays an important role in the field of complex network analysis. In this paper, we propose a regional patch detection method from RTN via community detection of complex network. Firstly, the refined Adapted PageRank algorithm, which combines with the influence factors of the location property weight, the geographic distance weight and the road level weight, is used to calculate the candidate ranking results of key nodes in the RTN. Secondly, the ranking result and the shortest path distance as two significant impact factors are used to select the key points of the RTN, and then the Adapted K-Means algorithm is applied to regional patch detection of the RTN. Finally, based on the experimental data of Zhangwu road traffic network, the analysis results are as follows: Zhangwu is divided into 9 functional structures with key node locations as the core. Regional patch structure is divided according to key points, and the RTN is actually divided into nine small functional communities. Nine functional regional patches constitute a new network structure, maintaining connectivity between the regional patches can improve the overall efficiency of the RTN.

scholarly journals Improving the efficiency of road traffic monitoring based on time and buffer indexes using geo-information data

2020 ◽  
Vol 17 (2) ◽  
pp. 173-180
Author(s):  
R. N. Gorbunov ◽  
Keyword(s):  
Information Systems ◽  
Comparative Analysis ◽  
Road Traffic ◽  
Traffic Monitoring ◽  
Traffic Network ◽  
Systems Approaches ◽  
The Road ◽  
The City

The article presents a description of approaches to evaluating the road traffic monitoring efficiency. The results of a comparative analysis of the efficiency and costs of road traffic monitoring are submitted using laboratory vehicles and geo-information data obtained from geo-information systems. Approaches to optimizing the processes of organizing traffic monitoring on the city road traffic network are proposed.

An Idea of T-Shaped Integer Cantilevered Road

2011 ◽  
Vol 255-260 ◽  
pp. 4051-4055
Author(s):  
Zhi Xiang Zhou ◽  
Liang Fan
Keyword(s):  
Design Principle ◽  
Engineering Application ◽  
Environmental Benefits ◽  
New Method ◽  
Mountainous Areas ◽  
Construction Technique ◽  
The Road ◽  
Safe Side ◽  
Cut And Fill

A new method of widening mountainous highway with T-shaped Integer Cantilevered Road was proposed for steep mountainous areas. Its design principle is casting an integral wall upon the exiting stable roadbed to widen the road without considerable cut and fill. Then the construction technique and work principle were introduced, and the technical, economic and environmental benefits were discussed. Engineering application shows that this method is not only simple, economical, and on the safe side in construction, but also protecting environment further compared with the existing techniques.

scholarly journals Travel Time Reliability-Based Signal Timing Optimization for Urban Road Traffic Network Control

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Zhengfeng Ma ◽  
Darong Huang ◽  
Changguang Li ◽  
Jianhua Guo
Keyword(s):  
Travel Time ◽  
Optimization Model ◽  
Road Traffic ◽  
Signal Timing ◽  
Traffic Network ◽  
Travel Time Reliability ◽  
Timing Optimization ◽  
The Road ◽  
Signal Timing Optimization ◽  
Traffic Signal Timing

Due to increasing traffic demand, many metropolitan areas are experiencing extensive traffic congestion, which demands for efficient traffic signal timing and optimization. However, conventional efficiency measure-based signal optimization cannot handle the ubiquitous uncertainty in the road networks, demanding for the incorporation of reliability measures into signal optimization, which is still in its early stage. Therefore, targeting this issue, based on the recent studies on recognizing travel time reliability (TRR) as an important reliability measure of road networks, a travel time reliability-based urban road traffic network signal timing optimization model is proposed in this paper, with the objective function to optimize a TTR measure, i.e., buffer time index. The proposed optimization model is solved using the heuristic particle swarm optimization approach. A case study is conducted using microscopic traffic simulation for a road network in the City of Nanjing, China. Results demonstrate that the proposed optimization model can improve travel time reliability of the road traffic network and the efficiency of the road traffic network as well. Future studies are recommended to expand the integration of travel time reliability into traffic signal timing optimization.

A Groundwork Based Novel Routing Protocol for Vehicular Ad hoc Networks

2017 ◽  
Vol 7 (11) ◽  
pp. 121
Author(s):  
Amolkirat Singh ◽  
Guneet Saini
Keyword(s):  
Routing Protocol ◽  
Packet Loss ◽  
Secure Communication ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Road Traffic ◽  
Traditional Approach ◽  
Unexpected Events ◽  
The Road ◽  
On The Road

Many people lose their life and/or are injured due to accidents or unexpected events taking place on road networks. Besides traffic jams, these accidents generate a tremendous waste of time and fuel. Undoubtedly, if the vehicles are provided with timely and dynamic information related to road traffic conditions, any unexpected events or accidents, the safety and efficiency of the transportation system with respect to time, distance, fuel consumption and environmentally destructive emissions can be improved. In the field of computer and information science, Vehicular Ad hoc Network (VANET) have recently emerged as an effective tool for improving road safety through propagation of warning messages among the vehicles in the network about potential obstacles on the road ahead. VANET is a research area which is in more demand among the researchers, the automobile industries and scientists to discover about the loopholes and advantages of the vehicular networks so that efficient routing algorithms can be developed which can provide reliable and secure communication among the mobile nodes.In this paper, we propose a Groundwork Based Ad hoc On Demand Distance Vector Routing Protocol (GAODV) focus on how the Road Side Units (RSU’s) utilized in the architecture plays an important role for making the communication reliable. In the interval of finding the suitable path from source to destination the packet loss may occur and the delay also is counted if the required packet does not reach the specified destination on time. So to overcome delay, packet loss and to increase throughput GAODV approach is followed. The performance parameters in the GAODV comes out to be much better than computed in the traditional approach.

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