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 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 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.

scholarly journals Research on Expressway Travel Time Prediction Based on Exclusive Disjunctive Soft Set

2020 ◽  
Vol 308 ◽  
pp. 02005
Author(s):  
Qingqing Wang ◽  
Huamin Li ◽  
Weixin Xiong
Keyword(s):  
Travel Time ◽  
Set Theory ◽  
Road Traffic ◽  
Influence Factors ◽  
Soft Set ◽  
Travel Time Prediction ◽  
Time Model ◽  
Traffic System ◽  
The Road ◽  
Time Prediction

In order to study the prediction problem of expressway travel time, due to the ambiguity and uncertainty in the road traffic system, the travel time prediction model is established based on the exclusive disjunctive soft set theory. Through the parameter reduction theory of soft set, the main influence factors are extracted, and the mapping relationship between the influence factors and the travel time is obtained through the exclusive disjunctive soft set decision system. The travel time model is established based on the soft set theory, and the travel time is calculated through the mapping relationship. The experimental results show that, compared with the BPR function model, the travel time model based on the exclusive disjunctive soft set theory reduces the prediction error and effectively improves the calculation accuracy of the travel time.

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.

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 KONSEP LIABILITI DAN PEMBERIAN PAMPASAN GANTI RUGI DALAM KEMALANGAN JALAN RAYA MENURUT PERUNDANGAN ISLAM

2019 ◽  
Vol 10 ◽  
pp. 45-77
Author(s):  
Siti Khadijah Mohd Khair ◽  
Nuarrual Hilal Md Dahlan ◽  
Harlida Wahab
Keyword(s):  
Traffic Accidents ◽  
Islamic Law ◽  
Road Traffic ◽  
Road Traffic Accidents ◽  
Road Accidents ◽  
The Road ◽  
Key Points ◽  
Broad Concept ◽  
Research Outcome ◽  
On The Road

ABSTRAK Aspek liabiliti dan pemberian pampasan ganti rugi merupakan perkara utama dalam membincangkan isu kesalahan kecuaian di dalam kes kemalangan jalan raya. Artikel ini bertujuan untuk menganalisa konsep liabiliti dalam kemalangan jalan raya menurut perundangan Islam dengan memfokuskan kepada kesalahan kecuaian dengan menggunakan pendekatan kualitatif. Dhaman atau denda ganti rugi dalam kajian ini akan menekankan prinsip khusus dan pendekatan ke atas aspek perlanggaran di jalan raya di dalam perundangan Islam. Kajian perpustakaan digunakan untuk liabiliti di dalam kes-kes perlanggaran berteraskan Al¬Quran, sunnah, ijma’ dan qiyas. Seterusnya ia menghubungkaitkan pemakaian konsep ini dengan kesalahan kecuaian menyebabkan perlanggaran di dalam kemalangan jalan raya. Dapatan kajian menunjukkan prinsip ‘penyebab’ dalam perundangan Islam amat jelas pemakaian dan perkaitannya di dalam menentukan liabiliti sama ada kes perlanggaran berlaku di daratan, lautan atau di ruang udara. Konsep liabiliti turut terpakai bagi menentukan tanggungan kecuaian dan pemberian pampasan ganti rugi oleh pihak-pihak yang terlibat dalam membina struktur jalan, jambatan, terowong dan lain-lain. Konsep ini juga berhubung dengan jalan raya sekiranya tanggungan bukan pada pemandu yang tidak bersalah dan tidak cuai. ABSTRACT The aspects of liability and compensation have been key points when discussing the issue of negligence in road traffic accidents. This article aims to analyze the concept of liability in road accidents, in accordance to Islamic law, that focuses on negligence by using a qualitative approach. The application of ‘dhaman’ or the compensation of damages, is a broad concept that will be examined in this study. Furthermore, this study will review the specific principles and approaches on collisions of road traffic within the Islamic law. The methodology carried out employs the use of library study to analyze the concept of liability in cases of collisions, based on the Al-Quran, sunnah, ijma’ and qiyas with regards to the application of ‘dhaman’ on the negligence that have resulted in collisions from road accidents. The research outcome suggests that the ‘causal’ principle in Islamic law is very clear on its application and relevance in determining the liability of either a case of collision that has occurred on the road, ocean or in air. The concept of liability is also applied to determine the liability of negligence and awarded compensation by the parties that are involved in constructing the roads, bridges, tunnels and other structures that are associated with the road, if the liability does not fall upon the innocent and negligent drivers.

scholarly journals Topological Characteristics and Vulnerability Analysis of Rural Traffic Network

2019 ◽  
Vol 2019 ◽  
pp. 1-9
Author(s):  
Xia Zhu ◽  
Weidong Song ◽  
Lin Gao
Keyword(s):  
Complex Network ◽  
Network Model ◽  
Network Models ◽  
Mapping Method ◽  
Traffic Network ◽  
Complex Network Theory ◽  
The Road ◽  
Topological Features ◽  
Attack Patterns ◽  
Road Mapping

Rural traffic network (RTN), as a complex network, plays a significant role in the field of resisting natural disasters and emergencies. In this paper, we analyze the vulnerability of RTN via three traffic network models (i.e., No-power Traffic Network Model (NTNM), Distance Weight Traffic Network Model (DWTNM), and Road Level Weight Traffic Network Model (RLWTNM)). Firstly, based on the complex network theory, RTN is constructed by using road mapping method, according to the topological features. Secondly, Random Attack (RA) and Deliberate Attack (DA) strategies are used to analyze network vulnerability in three rural traffic network models. By analyzing the attack tolerance of RTN under the condition of different attack patterns, we find that the road level weight traffic network has a good performance to represent the vulnerability of RTN.

scholarly journals Analysis of Urban Road Traffic Network Based on Complex Network

2016 ◽  
Vol 137 ◽  
pp. 537-546 ◽  
Author(s):  
Zhao Tian ◽  
Limin Jia ◽  
Honghui Dong ◽  
Fei Su ◽  
Zundong Zhang
Keyword(s):  
Complex Network ◽  
Road Traffic ◽  
Traffic Network ◽  
Urban Road

scholarly journals Weighted Complex Network Analysis of Pakistan Highways

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Yasir Tariq Mohmand ◽  
Aihu Wang
Keyword(s):  
Network Analysis ◽  
Complex Network ◽  
Public Transportation ◽  
Road Traffic ◽  
Practical Importance ◽  
Small World ◽  
Complex Network Analysis ◽  
The Road ◽  
Highway Network ◽  
Weighted Complex Network

The structure and properties of public transportation networks have great implications in urban planning, public policies, and infectious disease control. This study contributes a weighted complex network analysis of travel routes on the national highway network of Pakistan. The network is responsible for handling 75 percent of the road traffic yet is largely inadequate, poor, and unreliable. The highway network displays small world properties and is assortative in nature. Based on the betweenness centrality of the nodes, the most important cities are identified as this could help in identifying the potential congestion points in the network. Keeping in view the strategic location of Pakistan, such a study is of practical importance and could provide opportunities for policy makers to improve the performance of the highway network.

Sign in / Sign up

Export Citation Format

Share Document