Author: Wei-Bin ZhangPublisher:
ISBN:
Category : Adaptive control systems
Languages : en
Pages : 93
Book Description
Advanced Traffic Signal Control Algorithms Phase II
Author: Wei-Bin ZhangPublisher:
ISBN:
Category : Adaptive control systems
Languages : en
Pages : 93
Book Description
Advanced Traffic Signal Control Algorithms
Author: Alexander SkabardonisPublisher:
ISBN:
Category : Adaptive control systems
Languages : en
Pages : 130
Book Description
Advanced Traffic Signal Control Algorithms
Author: Andreas F. MolischPublisher:
ISBN:
Category : Adaptive control systems
Languages : en
Pages : 69
Book Description
A Two Stage Interval-valued Neutrosophic Soft Set Traffic Signal Control Model for Four Way Isolated signalized Intersections
Author: Endalkachew Teshome AyelePublisher: Infinite Study
ISBN:
Category : Mathematics
Languages : en
Pages : 32
Book Description
One of the major problems of both developed and developing countries is traffic congestion in urban road transportation systems. Some of the adverse consequences of traffic congestion are loss of productive time, delay in transportation,increase in transportation cost,excess fuel consumption, safety of people,increase in air pollution level and disruption of day-to-day activities. Researches have shown that among others, traditional traffic control system is one of the main reasons for traffic congestion at traffic junctions. Most countries through out the world use pre-timed / fixed cycle time traffic control systems. But these traffic control systems do not give an optimal signal time setting as they do not take into account the time dependent heavy traffic conditions at the junctions. They merely use a predetermined sequence or order for both signal phase change and time setting. Some times this also leads to more congestion at the junctions. As an improvement of fixed time traffic control method, fuzzy logic traffic control model was developed which takes into account the current traffic conditions at the junctions and works based on fuzzy logic principle under imprecise and uncertain conditions. But as a real life situation,in addition to uncertainty and impreciseness there is also indeterminacy in traffic signal control constraints which fuzzy logic can not handle. The aim of this research is to develop a new traffic signal control model that can solve the limitations of fixed time signal control and fuzzy logic signal control using a flexible approach based on interval-valued neutrosophic soft set and its decision making technique, specially developed for this purpose.We have developed an algorithm for controlling both phase change and green time extension / termination as warranted by the traffic conditions prevailing at any time.
A Semi-actuated Or Fully Actuated Two Through Eight Phase Local Intersection Program for the 332 and 336 Cabinets of the California/New York Type 170 Traffic Signal Controller System
Author: United States. Federal Highway Administration. Implementation DivisionPublisher:
ISBN:
Category : Electronic traffic controls
Languages : en
Pages : 134
Book Description
Traffic Signal Communications and Control Study for the District of Columbia
Author: Publisher:
ISBN:
Category : Electronic traffic controls
Languages : en
Pages : 170
Book Description
Selection of Traffic Signal Control and Timing at Individual Intersections
Author: Publisher:
ISBN:
Category : Electronic traffic controls
Languages : en
Pages : 232
Book Description
SMART-signal Phase II
Author: Henry X. LiuPublisher:
ISBN:
Category : Electronic traffic controls
Languages : en
Pages : 30
Book Description
Traditionally, offset optimization for coordinated traffic signals is based on average travel times between intersections and average traffic volumes at each intersection, without consideration of the stochastic nature of field traffic. Using the archived high-resolution traffic signal data, in this project, we developed a data-driven arterial offset optimization model that will address two well-known problems with vehicle-actuated signal coordination: the early return to green problem and the uncertain intersection queue length problem. To account for the early return to green problem, we introduce the concept of conditional distribution of the green start times for the coordinated phase. To handle the uncertainty of intersection queue length, we adopt a scenario-based approach that generates optimization results using a series of traffic-demand scenarios as the input to the offset optimization model. Both the conditional distributions of the green start times and traffic demand scenarios can be obtained from the archived high-resolution traffic signal data. Under different traffic conditions, queues formed by side-street and main-street traffic are explicitly considered in the derivation of intersection delay. The objective of this model is to minimize total delay for the main coordinated direction and at the same time it considers the performance of the opposite direction. Due to model complexity, a genetic algorithm is adopted to obtain the optimal solution. We test the performance of the optimized offsets not only in a simulated environment but also in the field. Results from both experiments show that the proposed model can reduce travel delay of coordinated direction significantly without compromising the performance of the opposite approach.
Traffic Signal Timing Manual
Author: U.s. Department of TransportationPublisher: CreateSpace
ISBN: 9781508557173
Category : Transportation
Languages : en
Pages : 286
Book Description
This report serves as a comprehensive guide to traffic signal timing and documents the tasks completed in association with its development. The focus of this document is on traffic signal control principles, practices, and procedures. It describes the relationship between traffic signal timing and transportation policy and addresses maintenance and operations of traffic signals. It represents a synthesis of traffic signal timing concepts and their application and focuses on the use of detection, related timing parameters, and resulting effects to users at the intersection. It discusses advanced topics briefly to raise awareness related to their use and application. The purpose of the Signal Timing Manual is to provide direction and guidance to managers, supervisors, and practitioners based on sound practice to proactively and comprehensively improve signal timing. The outcome of properly training staff and proactively operating and maintaining traffic signals is signal timing that reduces congestion and fuel consumption ultimately improving our quality of life and the air we breathe. This manual provides an easy-to-use concise, practical and modular guide on signal timing. The elements of signal timing from policy and funding considerations to timing plan development, assessment, and maintenance are covered in the manual. The manual is the culmination of research into practices across North America and serves as a reference for a range of practitioners, from those involved in the day to day management, operation and maintenance of traffic signals to those that plan, design, operate and maintain these systems.
Guidelines for Selecting Traffic Signal Control at Individual Intersections
Author: Philip J. TarnoffPublisher:
ISBN:
Category : Electronic traffic controls
Languages : en
Pages : 96
Book Description