Navigation and Intelligent Transportation Systems

1998 ◽  
Keyword(s):  
Traffic Safety ◽  
Intelligent Transportation Systems ◽  
Traffic Management ◽  
Cellular Phone ◽  
Intelligent Transportation ◽  
Transportation Systems ◽  
Navigation Systems ◽  
Route Guidance ◽  
Highway Traffic ◽  
National Highway Traffic Safety

Navigation and Intelligent Transportation Systems contains 40 papers covering the technical and functional aspects of these systems including: 3D mapping, route guidance, cellular phone access, electronic compasses, and the history and future of navigation systems. The book also covers the important role of navigation in Intelligent Transportation Systems concerned with traffic management, traveler information, vehicle control systems, commercial vehicle operations, and public and rural transportation systems. The book concludes with a chapter on the Intelligent Vehicle Initiative, a joint program between the National Highway Traffic Safety Administration, the Federal Highway Administration, and the Federal Transit Administration.

scholarly journals Angle-Awareness Based Joint Cooperative Positioning and Warning for Intelligent Transportation Systems

Sensors ◽  
2020 ◽  
Vol 20 (20) ◽  
pp. 5818
Author(s):  
Zhi Dong ◽  
Bobin Yao
Keyword(s):  
Traffic Safety ◽  
Intelligent Transportation Systems ◽  
Estimation Algorithm ◽  
Intelligent Transportation ◽  
Transportation Systems ◽  
Cooperative Positioning ◽  
Traffic Efficiency ◽  
Sequential Task ◽  
Weighting Strategy ◽  
Eigen Decomposition

In future intelligent vehicle-infrastructure cooperation frameworks, accurate self-positioning is an important prerequisite for better driving environment evaluation (e.g., traffic safety and traffic efficiency). We herein describe a joint cooperative positioning and warning (JCPW) system based on angle information. In this system, we first design the sequential task allocation of cooperative positioning (CP) warning and the related frame format of the positioning packet. With the cooperation of RSUs, multiple groups of the two-dimensional angle-of-departure (AOD) are estimated and then transformed into the vehicle’s positions. Considering the system computational efficiency, a novel AOD estimation algorithm based on a truncated signal subspace is proposed, which can avoid the eigen decomposition and exhaustive spectrum searching; and a distance based weighting strategy is also utilized to fuse multiple independent estimations. Numerical simulations prove that the proposed method can be a better alternative to achieve sub-lane level positioning if considering the accuracy and computational complexity.

scholarly journals Visualizing the Intellectual Structure and Evolution of Intelligent Transportation Systems: A Systematic Analysis of Research Themes and Trends

2020 ◽  
Vol 12 (21) ◽  
pp. 8759 ◽  
Author(s):  
Nadia Karina Gamboa-Rosales ◽  
José María Celaya-Padilla ◽  
Ana Luisa Hernandez-Gutierrez ◽  
Arturo Moreno-Baez ◽  
Carlos E. Galván-Tejada ◽  
...  
Keyword(s):  
Intelligent Transportation Systems ◽  
Traffic Management ◽  
Intelligent Transportation ◽  
Transportation Systems ◽  
Intellectual Structure ◽  
Structure Evolution ◽  
Future Research ◽  
Systematic Analysis ◽  
Main Research ◽  
Research Themes

According to the United Nations, 70% of the world’s population will live in cities by 2050. This growth will be reflected in the demand for better services that should be adjusted to the collective and individual needs of the population. Governments and organizations are working on defining and implementing strategies that will enable them to respond to these challenges. The main challenges are related to transport and its management, considering transportation as a core issue in the economy, sustainability, and development of the regions. In this way, the Intelligent Transportation Systems (ITS) play a key role in the response to these scenarios, being that they are the framework where the new hardware and software tools are integrated, allowing an efficient development of transportation systems management, attending to aspects such as: traffic management, communications between vehicles and infrastructures, and security, among others. Nevertheless, the concept of ITS evolves rapidly so it is necessary to understand its evolution. To do that, the current research develops a thematic analysis of ITS in literature, evaluating the intellectual structure and its evolution using SciMAT, quantifying the main bibliometric performance indicators, and identifying the main research areas, authors, journals, and countries. To this purpose, the publications related to ITS from 1993 to 2019 available in the Web of Science (WoS) Core Collection were retrieved (7649 publications) and analyzed. Finally, one of the main results is the latest research themes map of ITS, considering its intellectual structure, evolution, and relationship. It assists in the definition and implementation of strategies, the identification of the scientific, academic, and business opportunities, and future research lines to consolidate the role of ITS in the new city models.

Virtual Automated Transit System (VATS) and Intelligent Transportation Systems (ITS) Application to Intermodal Freight Movements in Northeastern Illinois

2004 ◽  
Author(s):  
Farid Amirouche ◽  
Khurram Mahmudi ◽  
David Zavattero
Keyword(s):  
Traffic Safety ◽  
Intelligent Transportation Systems ◽  
Intelligent Transportation ◽  
Transportation Systems ◽  
Easy Access ◽  
State Governments ◽  
Transit System ◽  
Interstate Highway System ◽  
Roadway Design ◽  
Highway System

This paper addresses the issues faced by local and state governments concerning increasing traffic congestions, inadequate roadway design and traffic safety problems caused by the freight truck traffic; on the other hand, the freight industry is seeking to improve productivity by having easy access and direct routes between the intermodal facilities and the interstate highway system.

Guidelines for Application of Portable Work Zone Intelligent Transportation Systems

2003 ◽  
Vol 1824 (1) ◽  
pp. 15-22 ◽  
Author(s):  
Michael D. Fontaine
Keyword(s):  
Intelligent Transportation Systems ◽  
Traffic Management ◽  
Intelligent Transportation ◽  
Transportation Systems ◽  
Lessons Learned ◽  
Work Zone ◽  
Expected Performance ◽  
Operational Tests ◽  
Message Signs ◽  
Alternate Routes

Work zone intelligent transportation systems (WZITSs) are promoted as a way to improve safety and reduce congestion at work zone locations where traditional traffic management centers do not exist. These systems usually integrate portable changeable message signs and speed sensors with a central control system that automatically determines appropriate messages that are based on current traffic conditions. Manufacturers of these systems claim that WZITSs can warn drivers of downstream congestion, alert drivers to slower speeds ahead, and suggest alternate routes on the basis of prevailing conditions. Transportation agencies are often asked to make decisions on the installation of a WZITS without the benefit of objective information on its expected performance. Relatively few operational tests of these systems have been performed, and the results are not always well documented or conclusive. Agencies need guidance to help them determine whether a WZITS system would improve safety and operations at a specific site. Applications of WZITSs are reviewed, and a series of guidelines for their deployment, based on lessons learned from past tests, is presented.

Effect of route guidance and route scheduling systems on courier pickup and delivery operations: a simulation study

2001 ◽  
Vol 28 (1) ◽  
pp. 77-84 ◽  
Author(s):  
Omar H Choudhry ◽  
Ata M Khan
Keyword(s):  
Simulation Study ◽  
Intelligent Transportation Systems ◽  
Route Planning ◽  
Intelligent Transportation ◽  
Transportation Systems ◽  
Operating Conditions ◽  
Route Optimization ◽  
Pickup And Delivery ◽  
Route Guidance ◽  
Time Savings

The efficiency of pickup-and-delivery (P&D) activities of urban courier is adversely impacted by traffic congestion and lack of logistical innovations. The high frequency of P&D tasks offers the opportunity to achieve substantial savings in time through the implementation of route optimization, route guidance, and scheduling innovations. These innovations would require the intelligent transportation systems (ITS) technologies for their implementation. This paper describes how such time savings can be obtained. For testing the effect of network and operating conditions on time savings, a simulation study was undertaken on synthesized networks and logistical requirements. The results show that route guidance and scheduling systems yield highly significant time savings in the P&D operation of the courier industry.Key words: courier, intelligent transportation systems, route guidance, route planning, simulation.

Sign in / Sign up

Export Citation Format

Share Document