scholarly journals Detection and Optimization of Traffic Networks Based on Voronoi Diagram

2021 ◽  
Vol 2021 ◽  
pp. 1-19
Author(s):  
Rui Tao ◽  
Jian Liu ◽  
Yuqing Song ◽  
Rui Peng ◽  
Dali Zhang ◽  
...  
Keyword(s):  
Voronoi Diagram ◽  
Detection Method ◽  
Noisy Data ◽  
Transportation Systems ◽  
Transport Systems ◽  
Accurate Information ◽  
Traffic Networks ◽  
Road Congestion ◽  
Peak Points ◽  
Candidate Peak

Traffic peak is an important parameter of modern transport systems. It can be used to calculate the indices of road congestion, which has become a common problem worldwide. With accurate information about traffic peaks, transportation administrators can make better decisions to optimize the traffic networks and therefore enhance the performance of transportation systems. We present a traffic peak detection method, which constructs the Voronoi diagram of the input traffic flow data and computes the prominence of candidate peak points using the diagram. Salient peaks are selected based on the prominence. The algorithm takes O(n log n) time and linear space, where n is the size of the input time series. As compared with the existing algorithms, our approach works directly on noisy data and detects salient peaks without a smoothing prestep and thus avoids the dilemma in choosing an appropriate smoothing scale and prevents the occurrence of removing/degrading real peaks during smoothing step. The prominence of candidate peaks offers the subsequent analysis the flexibility to choose peaks at any scale. Experiments illustrated that the proposed method outperforms the existing smoothing-based methods in sensitivity, positive predictivity, and accuracy.

A Comprehensive Study on Intelligent Transportation Systems

2018 ◽  
Vol 4 (10) ◽  
pp. 10
Author(s):  
Ankur Mishra ◽  
Aayushi Priya
Keyword(s):  
Intelligent Transportation Systems ◽  
Traffic Congestion ◽  
Transportation Systems ◽  
Environmental Conservation ◽  
Integrated System ◽  
Transport Systems ◽  
Transport Sector ◽  
Intelligent Transport System ◽  
Intelligent Transport ◽  
Transportation Sector

Transportation or transport sector is a legal source to take or carry things from one place to another. With the passage of time, transportation faces many issues like high accidents rate, traffic congestion, traffic & carbon emissions air pollution, etc. In some cases, transportation sector faced alleviating the brutality of crash related injuries in accident. Due to such complexity, researchers integrate virtual technologies with transportation which known as Intelligent Transport System. Intelligent Transport Systems (ITS) provide transport solutions by utilizing state-of-the-art information and telecommunications technologies. It is an integrated system of people, roads and vehicles, designed to significantly contribute to improve road safety, efficiency and comfort, as well as environmental conservation through realization of smoother traffic by relieving traffic congestion. This paper aims to elucidate various aspects of ITS - it's need, the various user applications, technologies utilized and concludes by emphasizing the case study of IBM ITS.

Potential Applications of Intelligent Transportation Systems to Road Freight Transport in Mexico

2000 ◽  
Vol 1707 (1) ◽  
pp. 81-85
Author(s):  
Alberto Mendoza ◽  
Antonio García
Keyword(s):  
Intelligent Transportation Systems ◽  
Intelligent Transportation ◽  
Freight Transport ◽  
Transportation Systems ◽  
Transport Systems ◽  
Environment Friendly ◽  
Generic Term ◽  
Road Freight ◽  
Potential Applications ◽  
Made In

In the past few years, tools have been developed based on different communication means with the purpose of achieving a safer, more efficient, and environment-friendly operation of vehicular flows in the transport systems. Some of the early means generally involved a very strong human participation. In the course of time and with the rapid progress made in electronics, telecommunications, and computer systems, such processes have become automated until generating a series of technologies that currently are incorporated into the single generic term of intelligent transportation systems (ITS). This research has multiple purposes. First, some characteristics of road freight transport in Mexico are presented. Then, with such characteristics under consideration, the ITS technologies with the largest potential for application to that transportation type are described. A vision of future implementation is shown. Finally, some conclusions are presented.

Low Carbon Mobility, Urgent futures and radical transitions

2016 ◽  
Author(s):  
James Higham ◽  
Debbie Hopkins
Keyword(s):  
Rapid Development ◽  
Transportation Systems ◽  
Transport Systems ◽  
Political Agenda ◽  
Low Carbon ◽  
Mobility Patterns ◽  
High Carbon ◽  
Transportation Emissions ◽  
Paris Climate Agreement ◽  
Transport Emissions

More people than ever before are moving more frequently and at accelerating speeds, often for shorter periods of time. These mobilities are largely dependent on unsustainable high-carbon technologies. The continued and accelerating growth of transportation emissions is attributed to changing mobility patterns among the high emitters of hypermobile developed societies, combined with the rapid development of high carbon intensity transport systems in emerging economies. Mitigation of transport emissions remains largely absent from the political agenda, despite growing recognition of the urgent need to address transportation emissions, because it is fundamentally incompatible with neoliberal ideals. The level of decarbonisation required to align regional and global transportation systems with the agreed targets of the Paris Climate Agreement (2015) has proved to be a particularly acute challenge. The Agreement recognises that radical and system-wide transitions toward low carbon mobility are urgently required. It is critically important that the varied social, cultural and geographic contexts of low carbon mobility transitions that are identified in Low Carbon Mobility Transitions are taken up and acted upon to inform the low carbon mobility transformations that are so obviously and urgently required. These insights must inform efforts to ensure the full accountability of transportation emissions, and to ensure that the INDCs that are outlined in the Paris Climate Agreement (2015) are upheld and achieved in full measure.

scholarly journals Masivo: Parallel Simulation Model Based on OpenCL for Massive Public Transportation Systems’ Routes

Electronics ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 1501
Author(s):  
Juan Ruiz-Rosero ◽  
Gustavo Ramirez-Gonzalez ◽  
Rahul Khanna
Keyword(s):  
Simulation Model ◽  
Transport System ◽  
Public Transport ◽  
Public Transportation ◽  
High Performance ◽  
Simulation Models ◽  
Transportation Systems ◽  
Transport Systems ◽  
Public Transport System ◽  
Speed Up

There is a large number of tools for the simulation of traffic and routes in public transport systems. These use different simulation models (macroscopic, microscopic, and mesoscopic). Unfortunately, these simulation tools are limited when simulating a complete public transport system, which includes all its buses and routes (up to 270 for the London Underground). The processing times for these type of simulations increase in an unmanageable way since all the relevant variables that are required to simulate consistently and reliably the system behavior must be included. In this paper, we present a new simulation model for public transport routes’ simulation called Masivo. It runs the public transport stops’ operations in OpenCL work items concurrently, using a multi-core high performance platform. The performance results of Masivo show a speed-up factor of 10.2 compared with the simulator model running with one compute unit and a speed-up factor of 278 times faster than the validation simulator. The real-time factor achieved was 3050 times faster than the 10 h simulated duration, for a public transport system of 300 stops, 2400 buses, and 456,997 passengers.

A structural damage detection method using static noisy data

2005 ◽  
Vol 27 (12) ◽  
pp. 1784-1793 ◽  
Author(s):  
F. Bakhtiari-Nejad ◽  
A. Rahai ◽  
A. Esfandiari
Keyword(s):  
Damage Detection ◽  
Structural Damage ◽  
Detection Method ◽  
Noisy Data ◽  
Structural Damage Detection

scholarly journals Vehicular Ad hoc Network for Intelligent Transport System: A review

2018 ◽  
Vol 7 (4.36) ◽  
pp. 350
Author(s):  
Mohammed Saad Talib ◽  
Aslinda Hassan ◽  
Burairah Hussin ◽  
Ali Abdul-Jabbar Mohammed ◽  
Ali Abdulhussian Hassan ◽  
...  
Keyword(s):  
Traffic Safety ◽  
Intelligent Transportation Systems ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
High Efficiency ◽  
New Technologies ◽  
Negative Impact ◽  
Transportation Systems ◽  
Transport Systems ◽  
Intelligent Transport System

the numbers of accidents are increasing in an exponential manner with the growing of vehicles numbers on roads in recent years.  This huge number of vehicles increases the traffic congestion rates. Therefore, new technologies are so important to reduce the victims in the roads and improve the traffic safety. The Intelligent Transportation Systems (ITS) represents an emerging technology to improve the road's safety and traffic efficiency. ITS have various safety and not safety applications. Numerous methods are intended to develop the smart transport systems. The crucial form is the Vehicular Ad hoc Networks (VANET). VANET is becoming the most common network in ITS. It confirms human’s safety on streets by dissemination protection messages among vehicles. Optimizing the traffic management operations represent an urgent issue in this era a according to the massive growing in number of circulating vehicles, traffic congestions and road accidents. Street congestions can have significant negative impact on the life quality, passenger's safety, daily activities, economic and environmental for citizens and organizations. Current progresses in communication and computing paradigms fetched the improvement of inclusive intelligent devices equipped with wireless communication capability and high efficiency processors.  

scholarly journals RESEARCH ON ATTITUDES AND PREFERENCES OF TOURISTS IN THE CITY OF BRASOV ON THE INTRODUCTION OF HYBRID TRANSPORTATION SYSTEMS

2019 ◽  
pp. 37-44
Keyword(s):  
Qualitative Research ◽  
Low Temperatures ◽  
Transportation Systems ◽  
Hybrid Vehicles ◽  
Transport Systems ◽  
Transport Services ◽  
The City ◽  
Public Transport Services ◽  
Consumption Saving ◽  
Good Vision

The research refers to the attitudes and preferences of Brasovian’s regarding the introduction of hybrid transport systems. Other studies carried out on this topic have helped us to understand the attitude and preferences of Brasovians when it comes to hybrid transport systems. These hybrid transport systems They are based on environmental assessment and meeting the needs of customers who call for these public transport services. The hypotheses are specific to the qualitative research, the formulation is made after the research goals have been defined and the conception with which we will work. The assumptions from which we started are that these hybrid systems have a good impact on the environment. The fact that the technology of hybrid vehicles or all electrics are gaining more ground in recent years. The research is of a qualitative type based on a questionnaire, carried out on a total number of subjects taking place in Brasov. Following the initiation of the questionnaire, we managed to reach the following conclusions, where more than half of our respondents consider that these hybrid transport systems make us - they would be very beneficial and at the same time would have been used by the tourists of Brasov, thinking about protecting the environment. Due to the fact that Brasov is a mountain town with high levels of extremely low temperatures during the winter, I thought that the first step to reduce pollution is the introduction of these hybrid transport systems. Hybrid buses have a low fuel consumption, saving about 30% of the fuel requirement of a normal diesel bus. Brasovians and tourists from the city of Brasov regarding these transport systems. In short, this art icol represents a good development and vision on Brasov as well as a good vision from the residents and those who visit Brasov

E|Flow II - Infrastructural Sensor Concepts to Digitize the Workspace for Sustainable and Resource Efficient Intralogistics

2017 ◽  
Vol 871 ◽  
pp. 97-102 ◽  
Author(s):  
Michael Scholz ◽  
Sudharshana Venkataraman Rmasubramanian ◽  
Andreas Blank ◽  
Sven Kreitlein ◽  
Jörg Franke
Keyword(s):  
Material Flow ◽  
Autonomous Vehicles ◽  
Low Cost ◽  
Transportation Systems ◽  
Transport Systems ◽  
Production Lines ◽  
Single Board Computer ◽  
Pros And Cons ◽  
The One ◽  
Central Device

Nowadays material flow in factories is realized by different concepts of transport. Each of those specific conveyers has pros and cons due to its concept. In general, the state of art of transport systems have a low flexibility of the path planning and are not suitable for dynamic transport requirements, wherefore they are designed for a specific application. Generally, the common systems cover a specific task of transportation and can fulfill a predefined maximum amount of transportation orders. Therefore, it is necessary that the next generations of production lines, especially the intralogistics transportation systems, have to be designed more adaptable and flexible. The object of the research in this paper is a cyber-physical material flow system with flexible, autonomous and collaborative vehicles combined with centralized sensors to digitize the workspace. These sensors are a combination of commonly used USB cameras with a single board computer to realize an embedded senor system. The whole device is mounted to the ceiling of a factory to digitize the workspace. The single board computer proceed the scenario below the camera and provides the results of the code via WLAN to a central device on the one side, on the other side directly to the autonomous vehicles within the scenario. The algorithm separates moving obstacle by calculating an adaptive background picture. The obstacles are marked with a rotatable rectangle which coordinates are submitted to the vehicles. The adaptive background picture is provided by service to the central device, where the background pictures of all sensors are merged together. Here, a morphologic algorithm separates static obstacles and marks the space where the vehicles can operate. This approach leads to a performant and low cost sensor architecture for an infrastructural sensor concept to realize a digital twin of a workspace.

scholarly journals Building and Publishing Fundamental Transit Data for Regional Public Transportation Provided by Municipalities

2020 ◽  
Vol 308 ◽  
pp. 01005 ◽  
Author(s):  
Chinasa Sueyoshi ◽  
Hideya Takagi ◽  
Yoshihiro Yasutake ◽  
Kentaro Inenaga
Keyword(s):  
Public Transport ◽  
Public Transportation ◽  
Transportation Systems ◽  
Transport Systems ◽  
The Internet ◽  
Local Resident ◽  
Lack Of Information ◽  
Residential Population ◽  
Transportation Routes ◽  
Route Search

Public transportation is becoming increasingly important in regions where the residential population is decreasing. In Japan, many regional transportation systems are experiencing financial challenges. It is difficult for fixed-route transportation systems to operate at a surplus when serving only local resident users. We consider one of the problems of these regional public transport systems to be the lack of information on the Internet about regional public transportation routes. For people who are unfamiliar with the region, such as inbound tourists, there is no easy way to conduct a route search. In this paper, we describe our efforts to build a fundamental database of the regional public transportation provided by municipalities and to publish this data for those conducting route searches on the Internet. Specifically, we converted fundamental data regarding regional public transportation to the feed of the General Transit Feed Specification-Japan (GTFS-JP), which is based on the Google GTFS, as formulated by the Ministry of Land in Japan. Then we encouraged municipalities to publish these transit data to enable route searches on Google Maps and other domestic-content providers.

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