Simulation study of tram priorities effectiveness implemented in traffic control system

2018 ◽  
Vol 122 ◽  
pp. 5-15
Author(s):  
Mirosław Czerliński ◽  
Rafał Ruść ◽  
Józef Suda
Keyword(s):  
Control System ◽  
Control Systems ◽  
Simulation Study ◽  
Future Study ◽  
Traffic Control ◽  
Detection System ◽  
Control Strategies ◽  
Simulation Approach ◽  
Simulation Environment ◽  
Traffic Control System

One of the elements of implemented in Poland traffic control systems is module of priorities for public transport. Essence of working priority and the basic indicators of its effectiveness were presented. Among methods for testing the effectiveness of the priority, there has been distinguished economic and simulation approach. An example of priority research based on simulation of chosen street in Bydgoszcz was shown, using Vissim simulation environment. Developed simulation model, its connection to the control system, adopted detection system and 4 tested control strategies were also described. Then, the simulation and its results were presented. In results discussion they were compared in terms of adopted control strategies. In summary, possibility of a future study extension was also indicated.

Remote Simulation to Evaluate Real-Time Traffic Control Strategies

2000 ◽  
Vol 1727 (1) ◽  
pp. 95-100 ◽  
Author(s):  
David E. Lucas ◽  
Pitu B. Mirchandani ◽  
K. Larry Head
Keyword(s):  
Adaptive Control ◽  
Control System ◽  
Control Systems ◽  
Real Time ◽  
Traffic Control ◽  
Control Strategies ◽  
Remote Access ◽  
Hardware In The Loop ◽  
Simulation Environment ◽  
Real Time Traffic

Simulation is a valuable tool for evaluating the effects of various changes in a transportation system. This is especially true in the case of real-time traffic-adaptive control systems, which must undergo extensive testing in a laboratory setting before being implemented in a field environment. Various types of simulation environments are available, from software-only to hardware-in-the-loop simulations, each of which has a role to play in the implementation of a traffic control system. The RHODES (real-time hierarchical optimized distributed effective system) real-time traffic-adaptive control system was followed as it progressed from a laboratory project toward actual field implementation. The traditional software-only simulation environment and extensions to a hardware-in-the-loop simulation are presented in describing the migration of RHODES onto the traffic controller hardware itself. In addition, a new enhancement to the standard software-only simulation that allows remote access is described. The enhancement removes the requirement that both the simulation and the traffic control scheme reside locally. This architecture is capable of supporting any traffic simulation package that satisfies specific input-output data requirements. This remote simulation environment was tested with several different types of networks and was found to perform in the same manner as its local counterpart. Remote simulation has all of the advantages of its local counterpart, such as control and flexibility, with the added benefit of distribution. This remote environment could be used in many different ways and by different groups or individuals, including state or local transportation agencies interested in performing their own evaluations of alternative traffic control systems.

Traffic Monitoring and Congestion Management in the SCOOT Urban Traffic Control System

1998 ◽  
Vol 1634 (1) ◽  
pp. 118-122 ◽  
Author(s):  
David Bretherton ◽  
Keith Wood ◽  
Neil Raha
Keyword(s):  
Control System ◽  
Traffic Control ◽  
Detection System ◽  
Congestion Management ◽  
Traffic Monitoring ◽  
Urban Traffic ◽  
Incident Detection ◽  
The European Union ◽  
Traffic Control System ◽  
Urban Traffic Control

The SCOOT Urban Traffic Control system is now operating in over 170 cities worldwide, including 7 systems in North America. Since the first system was installed, there has been a continuous program of research and development to provide new facilities to meet the requirement of the traffic manager. The latest version of SCOOT (Version 3.1) incorporates a traffic information database, ASTRID, and an incident-detection system, INGRID, and provides a number of facilities for congestion control. The traffic monitoring facilities of SCOOT, including a new facility to estimate emissions from vehicles, and the current program of work to enhance the incident-detection system and to provide additional facilities to manage incidents and congestion are reported in this paper. The work is being carried out as part of the European Union, DGXIII 4th Framework project, COSMOS, with additional funding from the UK Department of Transport. The enhanced system is to be installed in the Kingston Borough of London, where it will be tested in combination with congestion warning information provided by variable message signs.

Current Developments in SCOOT: Version 3

1996 ◽  
Vol 1554 (1) ◽  
pp. 48-52 ◽  
Author(s):  
Dave B retherton
Keyword(s):  
Control System ◽  
Data Base ◽  
Traffic Control ◽  
Detection System ◽  
Urban Traffic ◽  
Incident Detection ◽  
Bus Priority ◽  
Current Information ◽  
Traffic Control System ◽  
Urban Traffic Control

The SCOOT urban traffic control system is now operating successfully in more than 130 towns and cities worldwide. The latest version of SCOOT has been extended to include support for bus priority, the automatic SCOOT traffic information data base (ASTRID) system, and the INGRID incident detection system and has been given added flexibility, particularly for use in incident conditions. Bus priority in SCOOT was developed within the European Union DRIVE 2 project PROMPT. This software has now been issued as part of the latest SCOOT version, following the field trials in London and Southampton, United Kingdom, which showed that significant benefits to buses could be obtained. The ASTRID data base has now been integrated with SCOOT and can run in the same machine as the urban traffic control system. As well as providing current and historical information to traffic engineers, ASTRID now can feed historic information back into SCOOT, providing a substitute cyclic flow profile that can be used for optimization when there are faulty detectors. The INGRID incident detection system contains two algorithms to provide an indication of an incident; taking current information directly from SCOOT, INGRID detects abnormal changes in flow and occupancy, and comparing current information with historic information stored in the ASTRID data base, INGRID detects abnormal patterns in these parameters. The SCOOT optimizers have been made more flexible and can now make larger changes to the signal timings if required. This facility can be switched on or off and would be particularly useful where an incident has been detected.

scholarly journals Types of operating data in Rail Traffic Control Systems

2018 ◽  
Vol 19 (12) ◽  
pp. 693-696
Author(s):  
Bartłomiej Ulatowski ◽  
Zbigniew Łukasik ◽  
Alfred Kurkowski
Keyword(s):  
Control System ◽  
Control Systems ◽  
Traffic Control ◽  
Operating Data ◽  
Railway Systems ◽  
Railway Industry ◽  
Traffic Control System ◽  
Real Challenge ◽  
Operational Data ◽  
Rail Traffic

This article discusses the issues of operating data in national and European Rail Traffic Control systems, i.e. in the ERTMS / ETCS and SRK systems. The article presents the possibilities and limitations of ERTMS systems. General principles of system implementation are also given, as well as specific functional levels of the Rail Traffic Control System are presented. The article describes and presents operational data related directly to the railway systems, which are based on the standard described in document E-1758. The article draws attention to the complexity of Rail Traffic Control processes, as well as the fact that it is necessary to modernize solutions that in the coming years will be a real challenge for the railway industry..

scholarly journals Density based Traffic Control System Embedded with Patient Weightage Method

2019 ◽  
Vol 8 (10S) ◽  
pp. 377-381
Keyword(s):  
Control Systems ◽  
Traffic Control ◽  
Traffic Congestion ◽  
Detection System ◽  
Raspberry Pi ◽  
Emergency Vehicle ◽  
Dynamic Flow ◽  
Smooth Flow ◽  
Emergency Vehicles ◽  
Traffic Control System

Every now and then traffic congestion has always been a hindrance in everyone’s normal life routine. This traffic congestion hindrance is very much problematic in case of high priority emergency vehicles namely ambulances, VIP vehicles, fire engines etc. So, traffic control has to be made proficient to provide smooth flow of vehicles. However, efficient synchronization of traffic at multiple junctions is complex. Conventional control systems do not handle the dynamic flow of traffic which results in chaos. In this project, implementation of an emergency vehicle detection system is done. The main objective is to provide a traffic-free route to the vehicles in order to save life. In this paper two cases are considered, in the initial case, the lane density at the junction will be calculated using ultrasonic sensors by Raspberry pi (Rpi) and the lane with minimal density route will be directed to the emergency vehicle NodeMcu in this case. Considering the assumption that hospital is present near to every lane. And in the second case, the conflict arises when two emergency vehicles are encountered at the same time at a junction, so this conflict is resolved in thispaper.

scholarly journals Design and Simulation of a Decentralized Railway Traffic Control System

2016 ◽  
Vol 6 (2) ◽  
pp. 945-951 ◽  
Author(s):  
T. Kara ◽  
M. Cengiz Savas
Keyword(s):  
Control System ◽  
Control Systems ◽  
Traffic Control ◽  
Traffic Management ◽  
General Structure ◽  
Railway Transportation ◽  
Railway Line ◽  
Railway Traffic ◽  
Traffic Control System ◽  
Traffic Management System

With the increasing use of railway transportation, various methods have been developed for the control and management of train traffic. Train traffic control systems that are currently in use are overwhelmingly centralized systems. In this study, the development of the general structure of railway traffic control techniques is examined, centralized and decentralized control systems are investigated, and an alternative train traffic control system, the Decentralized Train Traffic Management System (DTMS), is suggested. Simulation results on the possible application of the proposed method to a railway line in South-East Turkey are employed to evaluate the performance of the developed system.

Air traffic control system—digital simulation facility

SIMULATION ◽  
1971 ◽  
Vol 16 (1) ◽  
pp. 5-17 ◽  
Author(s):  
John R. Vander Veer ◽  
Louis J. Bona
Keyword(s):  
Control System ◽  
Control Systems ◽  
Traffic Control ◽  
Air Traffic Control ◽  
Digital Simulation ◽  
Data Entry ◽  
Development Program ◽  
Federal Aviation Administration ◽  
Air Traffic ◽  
Traffic Control System

The Federal Aviation Administration, at its National Aviation Facilities Experimental Center, has recent ly completed a new air traffic control system Digital Simulation Facility. The facility allows for improved real-time systems simulation and is currently being used to support two important pro jects aimed at improving control and safety of air traffic: It is being used to evaluate the inter action between a proposed airborne collision avoidance system and the air traffic control system, and to validate the various levels of automation in the air-terminal automation development program. The facility was developed for simulating present and proposed air traffic control systems and has twelve digital displays, five used as pilot consoles and seven as controlleer consoles. Each is equip ped with data entry devices for communicating with the computer which controls the simulation. This article describes the operation of the system, the hardware which comprises it, and the software required to control the equipment, to simulate air craft flights, and to collect and reduce data. Advantages of the new simulation facility over prior ones are discussed, as are plans for its use and expansion. The new facility provides an environment for con ducting simulations required in developing improved air traffic control systems to meet the needs of our increasing air traffic.

scholarly journals THE EVALUATION OF IMPLEMENTATION IMPACT OF CENTRALIZED TRAFFIC CONTROL SYSTEMS IN RAILWAYS

Transport ◽  
2002 ◽  
Vol 17 (3) ◽  
pp. 96-102 ◽  
Author(s):  
Tomas Magyla
Keyword(s):  
Control System ◽  
Control Systems ◽  
Traffic Control ◽  
Evaluation Method ◽  
Evaluation Process ◽  
Expert Group ◽  
Attribute Weight ◽  
Attribute Analysis ◽  
Sample Application ◽  
Traffic Control System

In this article we propose to evaluate the utility of implementation of Centralized Traffic Control System EbiScreen using expert evaluations in indistinct numbers, in the form of trapezoid membership function, as we are confident in the advantages obtained using this evaluation method. The methodology of evaluating and weightng of criteria in a trapezoid membership form is proposed in this article together with the results of evaluation. The idea is to integrate the hierarchy of objectives with the multi-attribute weight vectors using the values obtained by the expert group in evaluation process. The additional weights for the attributes in the multi-attribute analysis are provided within the same scale, so that they can be combined to find the overall value of the evaluation. Methodological presentation is followed by the results of sample application in Lithuanian Railways where the object of evaluation was the EbiScreen Centralized Traffic Control System.

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