Introduction to Traffic Signal Data Loggers and their Application to Accident Reconstruction

Przybyla, Jay; Rush, Thomas; Palframan, Kelly; Melcher, Daniel

doi:10.4271/2018-01-0527

Cited by 3 publications

(6 citation statements)

References 2 publications

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“…The authors of literature reference [18] declare that the experts are in general often asked to investigate and assess the traffic signal timing, right of way issues, and the signal indications displayed to involved drivers during the period of time leading up to and including the impact events. Until relatively recently, the experts were limited by the absence of any recording devices within the systems used for traffic signal phasing and timing.…”

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confidence: 99%

“…Until relatively recently, the experts were limited by the absence of any recording devices within the systems used for traffic signal phasing and timing. Accident reconstruction methods have long relied on the generalized signal phasing and timings programmed for that intersection by the responsible jurisdiction, combined with the vehicle dynamics calculated for the collision sequence in conjunction with witness testimony regarding signal indications and phase changes [17,18]. Recent technological advancements in signal timing data collection, recording, and logging can provide engineers and experts with a new, time-specific, incident-relatable, and more robust method of analyzing signalized intersection collisions (in case the intersection is equipped with the signal timing data loggers).…”

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confidence: 99%

“…While the sheer volume of signal data logger data over a 24-hour or longer period is largely irrelevant to a specific collision event, the time-stamped high-resolution data, and positional information related to vehicle detectors and signal phase changes within the seconds or minutes leading up to an incident can be a helpful resource for accident reconstruction and forensic analysis. The actual vehicle dynamics and the signal phase durations and change points can all be directly extracted from the recorded data [18,19].…”

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confidence: 99%

“…Traffic signal information from the data logger is also available and potentially valuable to assist engineers and experts in reaching conclusions when conducting accident reconstructions for incidents at signalized intersections. This new technology is particularly applicable to answering the most common questions involving signalized intersection collisions, including which driver had a green signal when approaching from conflicting directions, or how the incident was affected by the driver and pedestrian responses to signal change intervals, protected/permissive phasing, and pedestrian signal operations [18,20].…”

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confidence: 99%

“…Additional analyses of signal timing in real-time are needed for the dynamically controlled intersections (but when the traffic signal is determined the methodology is fully functional). Another option for the dynamically controlled intersections is a modern utilization of the traffic signal data loggers study [18], where the outcome is an online data collection and evaluation of the signal timing.…”

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confidence: 99%

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Methodology Designed to Evaluate Accidents at Intersection Crossings with Respect to Forensic Purposes and Transport Sustainability

et al. 2020

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Currently, there are quite a lot of incorrect procedures and mistakes that occur in the forensic area, which lacks analytical approaches toward solving the causes of accidents using s–t diagrams (distance–time diagrams) combined with the software simulation applications. When analyzing accidents, the correct information is of key importance. The aim of this article is to define a new specific technical and analytical approach toward handling expert’s reports on traffic accidents in road transport at intersections, with respect to the traffic lights. A simulation program application is used as a progressive means of accident evaluation. This procedure must become a standard in the methods of modern traffic accident analysis. The application of this methodology with simulation tools for accident reconstruction enables one to perform a very precise analysis of traffic accidents. Mutual space and time relationships of vehicles’ movements have been evaluated here, depending upon the intersection signal plan. To demonstrate the methodology, a real case is used here, reconstructed by means of the complex analytical simulation software PC-Crash. A procedure processed by these means can be beneficial for forensic traffic accident analysis.

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confidence: 99%

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confidence: 99%

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confidence: 99%

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confidence: 99%

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confidence: 99%

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Methodology Designed to Evaluate Accidents at Intersection Crossings with Respect to Forensic Purposes and Transport Sustainability

et al. 2020

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Modelling and Characteristics of the Car Emergency Braking Process at Low Frequency Data Logging

Ivanov,

Mihaylov,

Dimitrov

et al. 2023

2023 4th International Conference on Communications, Information, Electronic and Energy Systems (CIEES)

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An Overview of Traffic Accident Investigation Using Different Techniques

Mohammed

2023

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One of the most important aims of incident management is the clearance of the incident scene as fast as possible. The accident Investigation provides physical evidence at the accident site for the investigators. This physical evidence is much more reliable than the witness's statements and they are very crucial for the incident reconstruction. The cars accidents investigation is a dangerous activity, so it should be undertaken with suitable, accurate, and fast equipment. Many law enforcement agencies in the world have used different surveying techniques for accident investigations including the coordinate method, total station, photogrammetry, laser scanner, etc. Therefore, this research has been carried out in order to introduce the benefits of using surveying techniques in traffic accident investigations, and show their impacts on evidence documentation and scene clearance. This is done by focusing on the advantages and the disadvantages of each method based on the relevant works of literature and compares between them. Although comparison result shows that the traditional method(coordinate method) is simpler and cheaper than other methods, surveying techniques methods are safer, and faster in clearing the accident scene, fewer investigators are needed, the scale can be provided directly, high accuracy measurements can be obtained, and three dimensions models can be produced. So it's worth using the surveying equipment in cars accidents investigations.

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Introduction to Traffic Signal Data Loggers and their Application to Accident Reconstruction

Cited by 3 publications

References 2 publications

Methodology Designed to Evaluate Accidents at Intersection Crossings with Respect to Forensic Purposes and Transport Sustainability

Methodology Designed to Evaluate Accidents at Intersection Crossings with Respect to Forensic Purposes and Transport Sustainability

Modelling and Characteristics of the Car Emergency Braking Process at Low Frequency Data Logging

An Overview of Traffic Accident Investigation Using Different Techniques

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