scholarly journals Control of traffic lights for the fast passage of rescue vehicles in action - the need for changes in traffic control in cities

2018 ◽  
Vol 19 (10) ◽  
pp. 34-37
Author(s):  
Krzysztof Olejnik ◽  
Marcin Łopuszyński ◽  
Gabriel Nowacki ◽  
Bartosz Zakrzewski
Keyword(s):  
Public Transport ◽  
Traffic Control ◽  
Urban Areas ◽  
Emergency Vehicle ◽  
Traffic Lights ◽  
Emergency Rescue ◽  
Long Time ◽  
Advance Information ◽  
Transport Vehicle ◽  
Fast Passage

The article discusses the problem of passing emergency rescue vehicles in action in urban areas with intersections controlled by traffic lights. Fast travel is necessary while striving to minimize the possibility of adverse events. Traffic lights at intersections give the opportunity to use it to pave the free road for the passage of a privileged emergency vehicle. The quick change of control signals at the intersection (paving the way) must take into account the limitations resulting from the long stop (and thus long time) of public transport vehicles in public transport. Properly generated advance information will allow (in a way not threatened with injuries to passengers) to stop before crossing the bus, tram, trolley bus. The existing concepts do not take into account the need to generate advance information in traffic lights controllers resulting from the restrictions on the stop of a public transport vehicle. The article presents the concept of introducing advance information during the creation of a free road for a rescue vehicle.

scholarly journals Public Transport Priority for Multimodal Urban Traffic Control

2015 ◽  
Vol 15 (5) ◽  
pp. 17-36 ◽  
Author(s):  
Neila Bhouri ◽  
Fernando J. Mayorano ◽  
Pablo A. Lotito ◽  
Habib Haj Salem ◽  
Jean Patrick Lebacque
Keyword(s):  
Public Transport ◽  
Traffic Control ◽  
Optimization Problem ◽  
Urban Traffic ◽  
Linear Quadratic ◽  
The Public ◽  
Traffic Lights ◽  
Lq Optimal Control ◽  
Regulation Strategies ◽  
Urban Traffic Control

Abstract In order to improve the travel time of surface public transport vehicles (bus, tramway, etc.), several cities use Urban Traffic Control (UTC) systems enabling to give priority to public transport. This paper reviews these systems. Further on after a debate on their insufficiencies in the global regulation of the urban traffic on a whole network, the paper proposes intermodal regulation strategies, operating on intersection traffic lights to regulate the traffic, favouring the public transport. All these strategies are based on the Linear Quadratic (LQ) optimal control theory, but they are different in their ways of taking into account the public transport in the optimization problem. The simulation tests are carried out in a network of eight intersections and two public transport lines.

scholarly journals Improving traffic and emergency vehicle clearence at congested intersections using fuzzy inference engine

2021 ◽  
Vol 11 (4) ◽  
pp. 3176
Author(s):  
Aditi Agrawal ◽  
Rajeev Paulus
Keyword(s):  
Control System ◽  
Traffic Congestion ◽  
Urban Areas ◽  
Fuzzy Inference ◽  
Heavy Traffic ◽  
Green Light ◽  
Emergency Vehicle ◽  
Traffic Light ◽  
Traffic Condition ◽  
Traffic Lights

Traffic signals play an important role in controlling and coordinating the traffic movement in cities especially in urban areas. As the traffic is exponentially increasing in cities and the pre-timed traffic light control is insufficient in effective timing of the traffic lights, it leads to poor traffic clearance and ultimately to heavy traffic congestion at intersections. Even the Emergency vehicles like Ambulance and Fire brigade are struck at such intersections and experience a prolonged waiting time. An adaptive and intelligent approach in design of traffic light signals is desirable and this paper contributes in applying fuzzy logic to control traffic signal of single four-way intersection giving priority to the Emergency vehicle clearance. The proposed control system is composed of two parallel controllers to select the appropriate lane for green signal and also to decide the appropriate green light time as per the real time traffic condition. Performance of the proposed system is evaluated by using simulations and comparing with pre-timed control system in changing traffic flow condition. Simulation results show significant improvement over the pre-timed control in terms of traffic clearance and lowering of Emergency vehicle wait time at the intersection especially when traffic intensity is high.

scholarly journals PRIORITY BASED TRAFFIC LIGHTS CONTROLLER USING WIRELESS SENSOR NETWORKS

2013 ◽  
pp. 178-181
Author(s):  
K. R. SHRUTHI ◽  
K. VINODHA
Keyword(s):  
Traffic Control ◽  
Urban Areas ◽  
Traffic Management ◽  
International Standards ◽  
Wireless Sensor ◽  
Traffic Light ◽  
Traffic Lights ◽  
Adaptive Traffic Control ◽  
And Control ◽  
Multiple Intersections

Vehicular traffic is continuously increasing around the world, especially in large urban areas. The resulting congestion has become a major concern to transportation specialists and decision makers. The existing methods for traffic management, surveillance and control are not adequately efficient in terms of performance, cost, maintenance, and support. In this paper, the design of a system that utilizes and efficiently manages traffic light controllers is presented. In particular, we present an adaptive traffic control system based on a new traffic infrastructure using Wireless Sensor Network (WSN). These techniques are dynamically adaptive to traffic conditions on both single and multiple intersections. An intelligent traffic light controller system with a new method of vehicle detection and dynamic traffic signal time manipulation is used in the project. The project is also designed to control traffic over multiple intersections and follows international standards for traffic light operations. A central monitoring station is designed to monitor all access nodes..

scholarly journals Intelligent Traffic Control System Using ARM7 Controller and Image Processing Techniques

2021 ◽  
Vol 11 (4) ◽  
pp. 2726-2735
Author(s):  
Dr.E.V. Krishna Rao ◽  
N. Alekhya ◽  
K. Rupa ◽  
M. Sai Sujith ◽  
Sk Abdulla Aman Ahmed
Keyword(s):  
Control System ◽  
Time Delay ◽  
Traffic Control ◽  
Traffic Congestion ◽  
Current Model ◽  
Urban Traffic ◽  
Emergency Vehicle ◽  
Traffic Lights ◽  
Alert Message ◽  
Traffic Control System

The urban traffic congestion is being increased day by day due to large number of vehicles are used by dense people in cities. In the current model of the Traffic Control System, the time delay of each signal light is static which leads to lot of waiting time and was tage of fuel. To overcome this problem, intelligent traffic management system of controlling the traffic lights using the ARM 7 controller and camera sensor is proposed. The camera which is installed along the pavement captures the real time video of the road. The video is then processed indifferent stages to find the number of vehicles in that particular lane using Convex hull technique and accordingly the time delay of the traffic signals has been changed dynamically. Incase, if an emergency vehicle like ambulance is detected by RF434 in a particular lane then automatically this lane will be given the highest priority to clear the traffic. Another feature is if any vehicle violates the traffic line that can also be identified by the RFID reader and automatically and an alert message will be sent to registered mobile number through GSM module which is interfaced with LPC2148.

scholarly journals Pilot Implementation of Public Transport Priority in the City of Zagreb

2015 ◽  
Vol 27 (3) ◽  
pp. 257-265 ◽  
Author(s):  
Miroslav Vujić ◽  
Sadko Mandzuka ◽  
Martin Greguric
Keyword(s):  
Public Transport ◽  
Traffic Control ◽  
Traffic Congestion ◽  
Urban Areas ◽  
Urban Traffic ◽  
Control Measures ◽  
Traffic Demand ◽  
Public Transport System ◽  
Adaptive Traffic Control ◽  
The City

The problem with traffic congestion is particularly expressed in urban areas where possibilities for physical increment of capacity are limited or impossible. Significant in the approach to solving this problem is the usage of Public Transport (PT) and the implementation of various advanced control measures that can improve the quality of overall public transport system. The main objective of this research is to explore the possibilities of implementation of adaptive traffic control on signalized intersections giving priority to public transport vehicles through urban traffic network in the city of Zagreb. The possibilities of implementing public transport priority (PTP) technique in the city of Zagreb are analyzed because of specific traffic situations on defined corridors (location of stops, distance between intersections, etc.). With proper usage of PTP techniques (e.g. adequate detector positions, good estimation of PT vehicle arrival time at intersection) the total tram travel time can be significantly reduced. The Level of Service at intersection may be approximately retained because cross-street traffic demand was not ignored. According to technological level of traffic control system in the city of Zagreb, global implementation of PTP is not possible. So, for each intersection the PTP algorithm was developed separately, but mutual traffic influence of all intersections on the corridor was considered. The cooperative concept application within urban traffic control is considered as well.

scholarly journals Density Controlled Traffic Lights System using Aurdino Mega 2560

2020 ◽  
Vol 9 (5) ◽  
pp. 392-394
Keyword(s):  
Traffic Control ◽  
Urban Areas ◽  
Red Light ◽  
Green Light ◽  
Fixed Time ◽  
Traffic Density ◽  
Traffic Light ◽  
Traffic Lights ◽  
Choice Making ◽  
Control Authority

We have proposed the enhancement of Traffic Light Controller utilizing ultrasonic sensor and microcontroller. The Paper is planned for structuring a thickness based dynamic traffic signal framework where the planning of signal will change consequently on detecting the traffic density at any road junction. Traffic jams are an extreme issue in many urban areas over the world and thusly the time has come to move progressively manual mode or fixed clock mode to a robotized framework with choice making abilities. Present day traffic control framework is fixed time based which may render wasteful on the off chance that one path is operational than the others. To solve this issue, we have made a structure for a clever traffic control system. Some of the time higher traffic density at one side of the intersection requires longer green light time when compared with standard green light time. We, consequently propose here a component where the time of green light and red light is allotted based on the thickness of the traffic present around then. This is accomplished by utilizing ultrasonic sensors which are available on Top of the street.Sometime, in specific intersection of the street junctions extended periods of Red Traffic Light. In instance of any vehicle in crisis circumstance or on the other hand in emergency like VVIPs,a SMS is send to Traffic Control Authority, who has the control of microcontroller empowers microcontroller to change traffic light green for specific time on need premise.

scholarly journals Intelligent Emergency Vehicle Preemption Using A Density Based System

2018 ◽  
Vol 7 (3.12) ◽  
pp. 572
Author(s):  
Voruganti Anirudh ◽  
M Neelaveni Ammal ◽  
Datla Suryatej ◽  
A V Satvik
Keyword(s):  
Traffic Control ◽  
Traffic Congestion ◽  
Urban Areas ◽  
Emergency Vehicle ◽  
Fire Brigade ◽  
Traffic Jams ◽  
Signal Light ◽  
The World ◽  
Emergency Vehicles ◽  
Traffic Prioritization

Transit by road is one of the crude methods of transportation in various parts of the world as of today. The abundance of vehicles utilizing the street is expanding in an ascending order consistently. Because to this reason, traffic congestion in urban areas is becoming inescapable these days. The normal purpose behind traffic blockage is because of poor traffic prioritization, wherein a portion of the paths may have less traffic than the others with measure up to signal light length for both the paths. This Inefficient administration of traffic leads to wastage of crucial time, contamination, wastage of fuel, expenditure of transportation and worry to drivers, and so on however more vitally emergency vehicles like rescue vehicle stall out in traffic. Our project is on density based traffic control with the need to prioritize vehicles like emergency vehicle and fire brigade. In this way, it is especially important to plan a system to keep away from the setbacks. In this way counteracting mishaps, impacts, and traffic jams.  

scholarly journals Utilization of Matrix Concepts for Traffic Control in Davao City

10.17158/501 ◽  
2016 ◽  
Vol 20 (2) ◽  
Author(s):  
Christelle L. Pacabis ◽  
Roxanne C. Ozoa ◽  
Renan P. Limjuco
Keyword(s):  
Linear Equation ◽  
Traffic Control ◽  
Traffic Jam ◽  
Traffic Lights ◽  
Traffic System ◽  
Traffic Matrix ◽  
The Matrix ◽  
Long Time ◽  
And Control ◽  
Descriptive Method

<p>A traffic matrix is a network-wide description of the total traffic volume carried within a domain, where each element describes the volume of traffic that originates at one node and is destined for another, and corresponds to an origin-destination (OD) pair. The Davao City local government implemented a project for traffic system with road sensors and CCTV (closed-circuit television) cameras but years after, some traffic lights appear to be blinking. It then takes a long time before the traffic lights restored to its usual function. Thus, not all of the intersection of streets in Davao City has traffic control. This study aimed to utilize matrix concepts on traffic control through computations using systems of linear equation and Gauss Jordan elimination involving actual traffic vehicle density data recorded from selected 4-cornered and 3-cornered blocks of Davao City. A descriptive method, specifically a mix of field survey and computational approach was utilized. The traffic matrix created indicates that for traffic to keep flowing in the 4-cornered block, 1430, 151, and 261 cars per hour must be routed between intersections 1 and 2, intersections 3 and 2, and intersections 3 and 4, respectively in an hour. For the 3-cornered block, 200, 711 and 1094 cars per hour need to be routed between intersections 1 and 2, 3 and 2 and 1 and 3, respectively. Then, the matrix is used to know how to organize the vehicles and control their entering and leaving a street to avoid traffic jam.</p><p><strong><br /></strong></p><p><strong>Keywords:</strong> Matrix concept, traffic control, linear equation, Gauss Jordan, descriptive method, Davao City, Philippines</p><div> </div>

scholarly journals Intelligent prioritization of public transport on intercity roads

2018 ◽  
Vol 19 (4) ◽  
pp. 7-9
Author(s):  
Adam Molecki
Keyword(s):  
Public Transport ◽  
Urban Areas ◽  
Transport Systems ◽  
Intelligent Transport Systems ◽  
Traffic Lights ◽  
Intelligent Transport ◽  
Priority Systems ◽  
Near Future

Intelligent Transport Systems tools and equipment are built still not very often out of cities. It seems, that simple accommodation on traffic lights is the higher level of ITS there. This situation will evolve in the near future. What is important, dynamic developing of intelligent priority systems does not have to be limited only to cities or urban areas.

scholarly journals Design of an Agent-Based Traffic Control System

2019 ◽  
Vol 8 (6S3) ◽  
pp. 71-76
Keyword(s):  
Control System ◽  
Traffic Control ◽  
Urban Areas ◽  
Process Model ◽  
Design Science ◽  
Research Process ◽  
Agent Based ◽  
Traffic Lights ◽  
Traffic Environment ◽  
Traffic Control System

Traffic control system is an imperative instrument in traffic management and smart urban development. However, most of the current traffic control systems cannot intercommunicate nor interact with each other. Most importantly, none of these systems are proactive and reactive to their immediate traffic environment. Thus, this study explores the design of an agent-based traffic control system where traffic lights can interact and inter-communicate to take prompt traffic control decisions within a traffic area. The study presents an agent-based traffic control system known as ATC. ATC system design was done using Design Science Research Process Model while the system was evaluated using qualitative research methodology. The study argues that there is need for traffic control system to be more reactive and proactive to their immediate traffic environment in order to limit traffic jam in urban areas.

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