scispace - formally typeset
Search or ask a question
Topic

Traffic wave

About: Traffic wave is a research topic. Over the lifetime, 2106 publications have been published within this topic receiving 62117 citations. The topic is also known as: phantom traffic jam & ghost jams.


Papers
More filters
Journal ArticleDOI
TL;DR: The proposed model applies a macroscopic simulation concept to capture the complex interactions between different types of vehicles from link entry and propagation, to intersection queue formation and discharging and offers a new signal design method for arterials in congested downtowns or megacities where transit vehicles constitute a major portion of traffic flows.
Abstract: This paper presents a generalized signal optimization model for arterials experiencing multiclass traffic flows. Instead of using conversion factors for nonpassenger cars, the proposed model applies a macroscopic simulation concept to capture the complex interactions between different types of vehicles from link entry and propagation, to intersection queue formation and discharging. Since both vehicle size and link length are considered in modeling traffic evolution, the resulting signal timings can best prevent the queue spillback due to insufficient bay length and the presence of a high volume of transit or other types of large vehicles. The efficiency of the proposed model has been compared with the benchmark program TRANSYT-7F under both passenger flows only and multiclass traffic scenarios from modest to saturated traffic conditions. Using the measures of effectiveness of the average-delay-per-intersection approach and the total arterial throughput during the control period, our extensive numerical results have demonstrated the superior performance of the proposed model during congested and/or multiclass traffic conditions. The success of the proposed model offers a new signal design method for arterials in congested downtowns or megacities where transit vehicles constitute a major portion of traffic flows.

17 citations

Patent
07 Dec 2007
TL;DR: In this article, the traffic information such as a traffic jam degree by considering waiting for a traffic light to change to obtain an accurate travel time when obtaining travel time information by use of information of a probe vehicle.
Abstract: PROBLEM TO BE SOLVED: To accurately decide traffic information such as a traffic jam degree by considering waiting for a traffic light to change to obtain an accurate travel time when obtaining travel time information by use of information of a probe vehicle. SOLUTION: Position/speed data of the vehicle traveling in a road section are collected (S1), a traffic light waiting time and a frequency of the waiting for the traffic light to change in the road section of the vehicle are calculated based on a collected speed V of the vehicle (S6), and the traffic light waiting time is subtracted from the travel time of the road section (S8) to calculate the net travel time of the road section, and the traffic information such as the traffic jam degree of the road section is decided based on the net travel time (S10). COPYRIGHT: (C)2009,JPO&INPIT

17 citations

Proceedings ArticleDOI
18 May 1998
TL;DR: In this article, the influence of vehicle distribution models on the packet success probability when used for vehicles sending data to a base station near the motorway is evaluated and compared with the results obtained when using real vehicle measurements.
Abstract: This paper evaluates the influence of vehicle distribution models on the packet success probability when used for vehicles sending data to a base station near the motorway. Four statistical models for the distribution of the vehicles on a three lane motorway are analyzed and compared with the results obtained when using real vehicle measurements. The measurements are split into three traffic conditions: queueing traffic with low speed, heavy traffic with small average headways and light traffic. The distribution models are used to calculate packet success probabilities using Rice distribution, capture effect and a single slope path loss model. The results show that, depending on the desired accuracy, fixed vehicle positions or exponential distributions can be chosen.

17 citations

Journal ArticleDOI
TL;DR: A model is presented that describes within-one-day development of queues when drivers affected by real-time traffic information choose their paths en route, reduced to a system of differential equations with delay.
Abstract: Introducing real time traffic information into transportation network makes it necessary to consider development of queues and traffic flows as a dynamic process. This paper initiates a theoretical study of conditions under which this process is stable. A model is presented that describes within-one-day development of queues when drivers affected by real-time traffic information choose their paths en route. The model is reduced to a system of differential equations with delay. Equilibrium points of the system correspond to constant queue lengths. Stability of the system is investigated using characteristic values of the linearised minimal face flow. A traffic network example illustrating the method is provided.

17 citations


Network Information
Related Topics (5)
Traffic flow
25.3K papers, 390.8K citations
90% related
Complex network
20.1K papers, 717.5K citations
72% related
Heuristic (computer science)
28K papers, 596K citations
71% related
Queueing theory
21.4K papers, 438.8K citations
69% related
Heuristic
23.1K papers, 565.2K citations
69% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202314
202237
202120
202017
201919
201822