scholarly journals Active Signage of Pedestrian Crossings as a Tool in Road Safety Management

2021 ◽  
Vol 13 (16) ◽  
pp. 9405
Author(s):  
Piotr Szagała ◽  
Piotr Olszewski ◽  
Witold Czajewski ◽  
Paweł Dąbkowski
Keyword(s):  
Pilot Study ◽  
Waiting Time ◽  
Road Safety ◽  
Safety Management ◽  
Statistical Significance ◽  
Severely Injured ◽  
Arterial Streets ◽  
Average Percentage ◽  
Average Waiting Time ◽  
One Year

The main objective of the study was to verify the effectiveness of active pedestrian crossings equipped with flashing lights activated automatically by detected pedestrians. A pilot study was conducted in two sites, where speed profiles of vehicles over the distance of 30 m before the crossing were analyzed. The study produced promising results in terms of reducing vehicle speeds so the next study investigated four other unsignalized pedestrian crossings. They were video-recorded for 48 h each, before, after and a year after installation. The ANOVA test was used to check the statistical significance of changes in selected indicators. Even after a year from the installation, the effect of the active signage remained significant. The average percentage of drivers yielding to pedestrians was 77.4% higher and the average waiting time 25.2% lower than before the installation. The average speeds of vehicles were 3.53 km/h lower on collector and 2.60 km/h lower on arterial streets. A decline in the probability of a pedestrian being killed or severely injured (KSI) ranged from 6.3 pp (9.4%) on the arterial streets immediately after the installation up to 12.9 pp (31.7%) on the collector streets one year after.

scholarly journals Statistical Evaluation of Risky Driver Behavior Factors that Influence Road Safety based on Drivers Age and Driving Experience in Budapest and Islamabad

2020 ◽  
Vol 80 (ET.2020) ◽  
pp. 1-18 ◽  
Author(s):  
Danish Farooq
Keyword(s):  
Road Safety ◽  
Statistical Significance ◽  
Driver Behavior ◽  
Influential Factors ◽  
Age Group ◽  
Road Accidents ◽  
Driving Experience ◽  
Safety Issues ◽  
One Year ◽  
Intelligent Assistant

Driver behavior is considered as one of the most influential factors on road safety. Most of the drivers on road involve in risky driving attitudes which cause fatal and seriously injured road accidents. This study aims to evaluate and compare the risky driver behavior factors that influence road safety based on drivers age and driving experience for Budapest and Islamabad. To achieve this, the study utilized the well-proved driver behavior questionnaire (DBQ) designed on a three-point scale to analyse statistically the driver behavior responses on perceived road safety issues. The study overall results found that drivers with age group ‘18-21 year’ and drivers with driving experience less than one year are more likely to involve in risky driver behavior factors as compared to other studied groups. Furthermore, the Budapest drivers with age group ‘18-21 year’ and driving experience less than one year are more concerned in risky driver behavior factors such as ‘disregard speed limit’, ‘failing to use personal intelligent assistant’ and ‘frequently changing lanes’. While Islamabad drivers with the same demographic characteristics are more concerned in several risky driver behavior factors as compared to other age and driving experience groups. Moreover, ANOVA analysis was run to measure the statistical significance of risky driver behavior factors between designated groups of drivers. Finally, relative risk (RR) was measured to compare that how much times one driver group is more likely to involve in risky driver behavior factors as compared to the other driver group in the sample. The study highlighted the most frequent risky driver behavior factors for each observed group to help the local policymakers to solve related road safety issues.

Analysis of Characteristics of Vehicle-Bicycle/Pedestrian Conflicts Using Video Drive Recorder

2011 ◽  
Vol 243-249 ◽  
pp. 4413-4417 ◽  
Author(s):  
Qing Feng Lin ◽  
Bo Cheng ◽  
Guang Quan Lu
Keyword(s):  
Field Test ◽  
Traffic Control ◽  
Road Safety ◽  
Traffic Accidents ◽  
Safety Management ◽  
The Road ◽  
Road Design ◽  
Traffic Conflict ◽  
Accident Data ◽  
One Year

Vehicle to pedestrian/bicycle accidents account for a large proportion of traffic accidents in China. In order to study the characteristics of vehicle to pedestrian/bicycle conflicts, 50 taxis are chosen as the test vehicles. A field-test was conducted using video driver recorder in Beijing for one year. A large amount of traffic conflict and accident data was collected in real driving environment. Considering the factors including conflict type, conflict time, conflict location, traffic control and conflict speed etc., the traffic conflict characteristics of vehicle to pedestrian/bicycle were analyzed. The results might contribute to the road safety management, road design and accident prevention technology.

scholarly journals Evaluation of the impact of active signage on road user behaviour at pedestrian crossings

2018 ◽  
Vol 231 ◽  
pp. 03004
Author(s):  
Piotr Szagała ◽  
Andrzej Brzeziński ◽  
Paweł Dąbkowski ◽  
Piotr Olszewski ◽  
Paweł Włodarek
Keyword(s):  
Waiting Time ◽  
Statistical Significance ◽  
Traffic Volume ◽  
Road User ◽  
Average Percentage ◽  
Before And After ◽  
Traffic Conflict ◽  
The Impact ◽  
Positive Effect ◽  
Positive Results

The main objective of the study was to verify the effectiveness of the active pedestrian crossings equipped with flashing lights activated automatically by detected pedestrians. Eight unsignalised pedestrian crossings were video-recorded for 48 hours each, both before and after installation of the equipment. An additional survey was done a month after the installation on three of the crossings. A traffic Conflict Rate was calculated for each crossing, as the number of conflicts per hour divided by the product of hourly pedestrian and vehicle traffic volume. The ANOVA test was used to check the statistical significance of changes of the indicators. The average percentage of drivers yielding to pedestrians increased by 94.8% and the average waiting time decreased by 39.2%. The Conflict Rate decreased at five out of eight sites. The average speeds of vehicles approaching the crossings decreased by 3.9 km/h. The “before-one month after” analysis mostly confirmed the positive results of the first analysis. Generally, at four out of eight crossings the effects were clearly positive, at two, relatively positive, and at the remaining two there was no clear positive effect. These sites were multilane streets which suggests that such sites should be either signalised or narrowed.

scholarly journals Gamma entrainment frequency affects mood, memory and cognition: an exploratory pilot study

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Ryan L. S. Sharpe ◽  
Mufti Mahmud ◽  
M. Shamim Kaiser ◽  
Jianhui Chen
Keyword(s):  
Pilot Study ◽  
Correlation Analysis ◽  
Negative Correlation ◽  
Cognitive Abilities ◽  
Statistical Significance ◽  
Assessment Scores ◽  
Frequency Group ◽  
Before And After ◽  
Mood Score ◽  
40 Hz

AbstractHere we provide evidence with an exploratory pilot study that through the use of a Gamma 40 Hz entrainment frequency, mood, memory and cognition can be improved with respect to a 9-participant cohort. Participants constituted towards three binaural entrainment frequency groups: the 40 Hz, 25 Hz and 100 Hz. Participants attended a total of eight entrainment frequency sessions twice over the duration of a 4-week period. Additionally, participants were assessed based on their cognitive abilities, mood as well as memory, where the cognitive and memory assessments occurred before and after a 5-min binaural beat stimulation. The mood assessment scores were collected from sessions 1, 4 and 8, respectively. With respect to the Gamma 40 Hz entrainment frequency population, we observed a mean improvement in cognitive scores, elevating from 75% average to 85% average upon conclusion of the experimentation at weak statistical significance ($$\alpha$$ α = 0.10, p = 0.076). Similarly, memory score improvements at a greater significance ($$\alpha$$ α = 0.05, p = 0.0027) were noted, elevating from an average of 87% to 95%. In pertinence to the mood scores, a negative correlation across all populations were noted, inferring an overall increase in mood due to lower scores correlating with elevated mood. Finally, correlation analysis revealed a stronger R$$^2$$ 2 value (0.9838) within the 40 Hz group between sessions as well as mood score when compared across the entire frequency group cohort.

scholarly journals Is There a Predisposition towards the Use of New Technologies within the Traffic Field of Emerging Countries? The Case of the Dominican Republic

Electronics ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 1208
Author(s):  
Francisco Alonso ◽  
Mireia Faus ◽  
Cristina Esteban ◽  
Sergio A. Useche
Keyword(s):  
Dominican Republic ◽  
Road Safety ◽  
New Technologies ◽  
Technological Development ◽  
Personal Data ◽  
Emerging Countries ◽  
Level Of Knowledge ◽  
One Year ◽  
The One ◽  
And Control

Technological devices are becoming more and more integrated in the management and control of traffic in big cities. The population perceives the benefits provided by these systems, and, therefore, citizens usually have a favorable opinion of them. However, emerging countries, which have fewer available infrastructures, could present a certain lack of trust. The objective of this work is to detect the level of knowledge and predisposition towards the use of new technologies in the transportation field of the Dominican Republic. For this study, the National Survey on Mobility was administered to a sample of Dominican citizens, proportional to the ONE census and to sex, age and province. The knowledge of ITS topics, as well as the use of mobile applications for mobility, are scarce; however, there was a significant increase that can be observed in only one year. Moreover, technology is, in general, positively assessed for what concerns the improvement of the traffic field, even though there is a lack of predisposition to provide one’s personal data, which is necessary for these devices. The process of technological development in the country must be backed up by laws that protect the citizens’ privacy. Thus, technologies that can improve road safety, mobility and sustainability can be implemented in the country.

GAIT SPEED AND HANDGRIP STRENGTH AS PREDICTORS OF INCIDENT DISABILITY IN MEXICAN OLDER ADULTS

2014 ◽  
pp. 1-4
Author(s):  
T. LOPEZ-TEROS ◽  
L.M. GUTIERREZ-ROBLEDO ◽  
M.U. PEREZ-ZEPEDA
Keyword(s):  
Older Adults ◽  
Gait Speed ◽  
Daily Living ◽  
Handgrip Strength ◽  
Statistical Significance ◽  
Adverse Outcomes ◽  
Community Dwelling ◽  
Performance Tests ◽  
One Year

Physical performance tests are associated with different adverse outcomes in older people. Theobjective of this study was to test the association between handgrip strength and gait speed with incidentdisability in community-dwelling, well-functioning, Mexican older adults (age ≥70 years). Incident disability wasdefined as the onset of any difficulty in basic or instrumental activities of daily living. Of a total of 133participants, 52.6% (n=70) experienced incident disability during one year of follow-up. Significant associationsof handgrip strength (odds ratio [OR] 0.96, 95% confidence interval [95%CI] 0.93-0.99) and gait speed (OR0.27, 95%CI 0.07-0.99) with incident disability were reported. The inclusion of covariates in the models reducedthe statistical significance of the associations without substantially modifying the magnitude of them. Handgripstrength and gait speed are independently associated with incident disability in Mexican older adults.

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