scholarly journals Explorative Visualization for Traffic Safety using Adaptive Study Areas

Author(s):  
Anne S. Berres ◽  
Haowen Xu ◽  
Sarah A Tennille ◽  
Joseph Severino ◽  
Srinath Ravulaparthy ◽  
...  

The pressing need to improve traffic safety has become a societal concern in many cities around the world. Many traffic accidents are not occurring as stand-alone events but as consequences of other road incidents and hazards. To capture the traffic safety indications from a holistic aspect, this paper presents a suite of visualization techniques to explore large traffic safety datasets collected from different sources using adaptive study areas which include the whole region (Hamilton County, Ohio, U.S.) as well as smaller sub-areas. In the present study, these data source include (1) Hamilton County’s 911 emergency response data, which includes traffic incidents as well as other types of incidents throughout the county, and (2) Tennessee crash data, which contains only vehicle crashes with more detail on the circumstances of each crash. Both abstract and spatial visualization techniques are used to derive a better understanding of traffic safety patterns for different traffic participants in various urban environments. In addition to the entire region of Hamilton County, safety is examined on the highways, in the downtown area, and in a shopping district east of the city center. It is possible to characterize incidents in the different areas, gain a better understanding of common incident patterns, and identify outliers in the data. Finally, a textured tile calendar is presented to compare spatiotemporal patterns.

2018 ◽  
Vol 1 (3) ◽  
pp. 128
Author(s):  
Andyka Kusuma ◽  
Tri Tjahjono ◽  
Nuzul Achjar

Traffic accident cost analysis is needed to predict potential losses of nation due to the emergence of traffic accident victims. The cost of traffic accidents in Indonesia is based on the characteristics of the City of Bandung in 2003, and it is shown that the cost of traffic accidents can vary according to regional characteristics. This study tries to compare the analytical approach in Bandung in 2003 with the Consumer Price Index and Human Development Index approaches for an area with medium accessibility, namely East Lombok, West Nusa Tenggara Province. The location of traffic accidents greatly influences the cost of traffic accidents, because the costs on inter-city roads are relatively higher compared to those on roads in the city. This study shows that the cost of traffic accidents is related to accessibility of health facilities. This analysis can be developed for all regions in Indonesia, so that it can be used as a reference for traffic stakeholders in assessing the performance of the traffic safety programs implemented. Analisis biaya kecelakaan lalu lintas diperlukan untuk memprediksi potensi kerugian negara akibat timbulnya korban kecelakaan lalu lintas. Biaya kecelakaan lalu lintas di Indonesia dibangun berdasarkan karakteristik kota Bandung tahun 2003, dan diperlihatkan bahwa biaya kecelakaan lalu lintas dapat bervariasi sesuai dengan karakteristik wilayah. Penelitian ini mencoba membandingkan pendekatan analisis di Bandung tahun 2003 dengan pendekatan Indeks Harga Konsumen dan Indeks Pembangunan Manusia untuk suatu wilayah dengan aksesibilitas menengah, yakni Lombok Timur, Provinsi Nusa Tenggara Barat. Lokasi kecelakaan lalu lintas sangat mempengaruhi biaya kecelakaan lalu lintas, karena biaya di jalan antar kota relatif lebih tinggi dibandingkan dengan biaya di jalan dalam kota. Penelitian ini meperlihatkan bahwa biaya kecelakaan lalu lintas terkait dengan aksesibilitas fasilitas kesehatan. Analisis ini dapat dikembangkan untuk semua wilayah di Indonesia, sehingga dapat dijadikan acuan bagi pemangku kepentingan lalu lintas dalam menilai kinerja program keselamatan lalu lintas yang dijalankan.


2018 ◽  
Vol 250 ◽  
pp. 02002 ◽  
Author(s):  
Nordiana Mashros ◽  
SittiAsmah Hassan ◽  
Yaacob Haryati ◽  
Mohd Shahrir Amin Ahmad ◽  
Ismail Samat ◽  
...  

Understanding and prioritising crash contributing factors is important for improving traffic safety on the expressway. This paper aims to identify the possible contributory factors that were based on findings obtained from crash data at Senai-Desaru Expressway (SDE), which is the main connector between the western and eastern parts of Johor, Malaysia. Using reported accident data, the mishaps that had occurred along the 77.2 km road were used to identify crash patterns and their possible related segment conditions. The Average Crash Frequency and Equivalent Property Damage Only Average Crash Frequency Methods had been used to identify and rank accident-prone road segments as well as to propose for appropriate simple and inexpensive countermeasures. The results show that the dominant crash type along the road stretches of SDE had consisted of run-off-road collision and property damage only crashes. All types of accidents were more likely to occur during daytime. Out of the 154 segments, the 4 most accident-prone road segments had been determined and analysed. The results obtained from the analyses suggest that accident types are necessary for identifying the possible causes of accidents and the appropriate strategies for countermeasures. Therefore, this accident analysis could be helpful to relevant authorities in reducing the number of road accidents and the level of accident severity along the SDE.


Jurnal HPJI ◽  
2019 ◽  
Vol 5 (2) ◽  
pp. 129-136
Author(s):  
An An Anisarida ◽  
Wimpy Santosa

Abstract The number of traffic accidents, including motorcycle traffic accidents in the City of Bandung in 2013–2017 tends to decrease. However, traffic accidents involving motorbikes still dominate traffic accidents that occur. The proportion of traffic accidents involving motorbikes is still the highest compared to those of other traffic accidents, and reaches a maximum in 2015, which is 93% of the number of traffic accidents in the City of Bandung. In addition, the chance of death in motorcycle traffic accidents is still relatively high, which is between 9% and 21%. The high chance of death victims requires a more in-depth study to improve traffic safety, especially in motorcycle use. Keywords: traffic accidents, motorcycle traffic accidents, traffic accident victims, traffic safety  Abstrak Jumlah kecelakaan lalu lintas, termasuk kecelakaan lalu lintas sepeda motor di Kota Bandung pada tahun 2013–2017 cenderung mengalami penurunan. Walaupun demikian, kecelakaan lalu lintas yang melibatkan sepeda motor masih mendominasi kecelakaan lalu lintas yang terjadi. Proporsi kecelakaan lalu lintas yang melibatkan sepeda motor masih yang terbesar dibandingkan dengan kejadian kecelakaan lalu lintas yang lain, dan mencapai maksimum pada tahun 2015, yaitu 93% terhadap jumlah kecelakaan lalu lintas di Kota Bandung. Selain itu, peluang terjadinya korban meninggal dunia dalam kecelakaan lalu lintas sepeda motor masih relatif tinggi, yaitu antara 9% hingga 21%. Tingginya peluang terjadinya korban meninggal dunia ini membutuhkan penelitian yang lebih mendalam untuk meningkatkan keselamatan berlalu lintas, khususnya dalam penggunaan sepeda motor. Kata-kata kunci: kecelakaan lalu lintas, kecelakaan lalu lintas sepeda motor, korban kecelakaan lalu lintas, keselamatan lalu lintas


2021 ◽  
Vol 13 (19) ◽  
pp. 10583
Author(s):  
Junfeng Jiao ◽  
Shunhua Bai ◽  
Seung Jun Choi

Dockless electric scooter (E-scooters) services have emerged in the United States as an alternative form of micro transit in the past few years. With the increasing popularity of E-scooters, it is important for cities to manage their usage to create and maintain safe urban environments. However, E-scooter safety in U.S. urban environments remains unexplored due to the lack of traffic and crash data related to E-scooters. Our study objective is to better understand E-scooter crashes from a street network perspective. New parcel level street network data are obtained from Zillow and curated in Geographic Information System (GIS). We conducted local Moran’s I and independent Z-test to compare where and how the street network that involves E-scooter crash differs spatially with traffic incidents. The analysis results show that there is a spatial correlation between E-scooter crashes and traffic incidents. Nevertheless, E-scooter crashes do not fully replicate characteristics of traffic incidents. Compared to traffic incidents, E-scooter incidents tend to occur adjacent to traffic signals and on primary roads.


2021 ◽  
Author(s):  
Anwarul Haq Dogar

Traffic accidents cause a huge loss to the society. According to statistics, 50% of all accidents occur at urban intersections and 47% of these are due to left-turn collisions. Countermeasure Implementation at these locations therefore can play a vital role in the improvement of traffic safety. This study illustrates a methodology for evaluation of urban 4-legged signalized intersections treated with left-turn priority phasing. The methodology is applied to three important collisions types: those due to left-turn collisions; those due to left-turn side impact collisions; and all impact types combined collisions. Data used in this analysis were obtained from the City of Toronto. Safety Performance Functions for left-turn and all impact types combined collisions which were developed by the City of Toronto, were calibrated and used in an empirical Bayesian methodology that was employed to estimate the expected frequency of accidents occurring at each intersection in order to evaluate the effectiveness of left-turn priority phasing in reducing this frequency. The results revealed that left-turn priority phasing can be an effective treatment for addressing and reducing the number of collision at signalized intersections. Flashing advance green phasing is more effective in improving safety for two of three types; all left-turn and all impact types combined collisions. Left-turn green arrow (protected/permissive) phasing is more effective for left-turn side impact collisions. By implementing this type of treatment, the number of crashes and the associated monetary loss to society could be significantly reduced.


2021 ◽  
Author(s):  
Anwarul Haq Dogar

Traffic accidents cause a huge loss to the society. According to statistics, 50% of all accidents occur at urban intersections and 47% of these are due to left-turn collisions. Countermeasure Implementation at these locations therefore can play a vital role in the improvement of traffic safety. This study illustrates a methodology for evaluation of urban 4-legged signalized intersections treated with left-turn priority phasing. The methodology is applied to three important collisions types: those due to left-turn collisions; those due to left-turn side impact collisions; and all impact types combined collisions. Data used in this analysis were obtained from the City of Toronto. Safety Performance Functions for left-turn and all impact types combined collisions which were developed by the City of Toronto, were calibrated and used in an empirical Bayesian methodology that was employed to estimate the expected frequency of accidents occurring at each intersection in order to evaluate the effectiveness of left-turn priority phasing in reducing this frequency. The results revealed that left-turn priority phasing can be an effective treatment for addressing and reducing the number of collision at signalized intersections. Flashing advance green phasing is more effective in improving safety for two of three types; all left-turn and all impact types combined collisions. Left-turn green arrow (protected/permissive) phasing is more effective for left-turn side impact collisions. By implementing this type of treatment, the number of crashes and the associated monetary loss to society could be significantly reduced.


Transport ◽  
2005 ◽  
Vol 20 (4) ◽  
pp. 154-159
Author(s):  
Laura Černiauskaite ◽  
Igoris Podagelis ◽  
Kazys Sakalauskas

The European Union directions pay a specific focus on traffic safety. Safety of railway transport traffic is among priority fields which has a direct effect on the quality of life of the population. It is most convenient to consider the number of breaks and accidents per year as the indicator of traffic safety. Reasons of traffic accidents can be very different. Most accidents occur due to poor technical condition of rolling‐stock and infrastructure, the human factor and the deficient organization of traffic. Stock Company “Lithuanian railways” can not assure safe traffic yet. The number of traffic incidents decreased in a few preserves only. Considering that, it is necessary to prepare a strategy for traffic safety and the program for its implementation. In 2002 specialists started preparing a study for safe traffic. The study is important for the preparation and implementation of the mentioned program. First results obtained from the research have already approved the importance of the influence of infrastructure, rolling‐stock and a human factor on traffic safety. The research carried out indicates positive changes in the situation of traffic safety of Lithuanian railways.


Author(s):  
Maher El-Hallaq

aza City is the largest city in the Gaza Strip and the Palestinian territories. The city has a population about 700,000 inhabitants with an average population density of 12600 person/km2. Documentation procedure of traffic accidents in the city is traditional and inefficient. It is not only based on paper formatting but also is not performed in the correct way since it misses the determination of exact position of occurrence of these accidents. Furthermore, documentation data do not involve appropriate level of details and need to be re-organized. This study aims to enhance the documentation process of the traffic accidents in Gaza City using GIS as well as developing appropriate recommendations that can raise the level of traffic safety in it. To enhance the documentation, a new mobile and desktop applications based on GIS Cloud are developed in order to automatically store spatial and descriptive data about traffic accidents in a computerized geodatabase. Many analysis using GIS of the accidents statistics of 2019 are performed. Results indicate that the hot neighborhood in the city is Northern Remal, the hot road is Salah Al-Din Str., the hot period is 12 – 14 O'clock, most accidents are caused by cars, and medium injuries are the dominant of these accidents. The study recommends to build a digital geodatabase that involves all necessary data associated with traffic accidents because it is the basis for planning, analyzing and making decisions. It is also recommended to establish a GIS department in Ministry of Transportation. There is a strong need to legislate binding laws to prevent the increase in the number of traffic accidents in addition to make field actions such as the necessity to set up traffic lights as much as possible near health centers, schools and other public places.


2021 ◽  
Vol 6 (1) ◽  
pp. 73-80
Author(s):  
Andrey Gorev ◽  
◽  
Olga Gasilova ◽  
Boris Sidorov ◽  
◽  
...  

Introduction: Improving intersection capacity will not be possible without accounting for traffic safety. Purpose of the study: We aim to determine the prerequisite for accident-free traffic at signal-controlled intersections with turning traffic flows. Methods: In our study, we used the methods of observation, comparison, and mathematical analysis. Results: We have carried out a field observation of traffic intensity at signal-controlled intersections in the city of Yekaterinburg, focusing on vehicles that moved when the green light was on. We have also analyzed traffic flow moving in three directions in the same lanes. We have discovered that traffic accident likelihood is the highest (54%) at four-way intersections. Three-way intersections account for 44% of traffic accidents, while the remaining 2% of accidents occur at multi-way intersections. Furthermore, we have determined the additional factors that impact safety in turning traffic flows at intersections. Our study demonstrates that in order to ensure maximum intersection capacity, the duration of the traffic signal cycle must be adjusted with the minimum safe distance between vehicles in mind.


Author(s):  
Betise Mery Alencar Sousa Macau Furtado ◽  
Cristine Vieira do Bonfim ◽  
Carmela Lilian Espósito de Alencar Fernandes ◽  
Jacicleide Alves Oliveira ◽  
Aline Galdino Soares da Silva

Abstract Objective: to describe the epidemiological characteristics of traffic accidents involving older victims, responded to by the Mobile Emergency Service (or SAMU), and to analyze the spatial distribution of these events in the city of Olinda, Pernambuco, Brazil, from 2015 to 2018. Method: a composite cross-sectional study was performed, using SAMU service records as a data source. Descriptive statistics were applied, based on frequency distribution. For the mapping and detection of spatial clusters, the Kernel intensity estimator was used. Results: SAMU responded to 137 traffic accidents with older victims. The most affected age group were older adults aged 60 to 69 years (81; 59.1%), and there was a predominance of male victims (90; 65.7%). The day of the week when most accidents occurred was Wednesday (29; 21.25%), and the highest number of accidents occurred in the morning (46; 33.6%). As for the nature of the accident, accidents involving pedestrians (80; 58.4) predominated over collisions (57; 41.6%). The Kernel intensity estimator identified a significant focus in the Peixinhos neighborhood, with other foci distributed throughout the coastal area. Conclusion: the study identified the characteristics of older victims of traffic accidents and areas of greatest risk for their occurrence in the city studied. This information can be useful when planning environmental engineering measures to be carried out in the regions identified, in order to reduce the frequency of accidents and injuries.


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