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Intersection is a function of parsing and altering traffic movement. The safety of vehicle manoeuvres at the junction depends on the minimum speed. The purpose of this study is to identify the effectiveness of the usage of temporary speed hump (3D visual effect) to reduce vehicles speed approaching a Priority Junction. This study was conducted at t...
Context in source publication
Context 1
... design of a 3D speed hump sticker measuring 3.5m length x 0.6m width is selected and designed to be used as a temporary traffic changer for the route of the study area. The installation of the 3D visual effect of speed humps as shown in Figure 1. The data obtained is completed into the completed form of the study including date, location, weather, start and end time of observation also the categories of vehicles through the intersection include cars, motorcycles, vans and other commercial vehicles such as light trucks. ...
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Intersection is a function of parsing and altering traffic movement. The safety of vehicle maneuvres at the junction depends on the minimum speed. The purpose of this study is to identify the effectiveness of the usage of temporary speed hump (3D visual effect) to reduce vehicles speed approaching a Priority Junction. This study was conducted at th...
Citations
... As a new form of road traffic marking, the threedimensional crosswalk could indeed attract drivers' attention and alertness and bright better deceleration effect [4,5], but it might also cause some drivers to be highly nervous and thus made emergency braking behavior, which might lead to serious traffic accidents [38][39][40]. It might also cause cognitive and recognition difficulties and distractions, which could also lead to safety hazards when pedestrians or drivers take them for granted [5,41]. In the present study, from the perspective of motion perception, by comparing the performance of TTC estimation in different dimensional backgrounds, it was concluded that although the accuracy of TTC estimation did not show differences in different dimensional backgrounds, it showed a greater tendency of overestimation in the background of three-dimensional. ...
Background
In previous studies, most research on motion perception have been conducted under background-free condition when the stimulus moved in a plane parallel to the observer. In real-life situations, people’s perception of the motion state of objects is usually done under different visual noise. Based on the occlusion paradigm, this study aimed to investigate whether different background information and motion speed affect the trend and accuracy of time-to-collision (TTC) estimation when stimuli move in a plane parallel to the observer.
Methods
Thirty five college students (mean age = 20.94, SD = 2.95, range = 18-28 years) participated in experiment 1, and used a 2 (background orientation: horizontal, vertical) × 3 (motion speed: slow, medium, fast) design to explore the effect of different line segment orientations and motion speed on TTC estimation performance; 36 college students (mean age = 20.81, SD = 2.82, range = 18-28 years) participated in experiment 2, and used a 2 (background dimension: two-dimensional background, three-dimensional background) × 3 (motion speed: slow, medium, fast) design to explore the effect of different background dimensions and motion speed on the performance of TTC estimation. The data were analyzed using SPSS 25.0.
Results
The results revealed that: (1) The TTC was underestimated for the slow speed condition and overestimated for the medium and fast speed conditions. (2) The highest accuracy of TTC estimation was obtained for the fast condition. (3) The TTC were overestimated for the vertical background condition and underestimated for the horizontal background condition. (4) Compared to the two-dimensional background, the TTC was overestimated in the three-dimensional background.
Conclusions
Object motion speed affected the TTC estimation performance, and different background information affected the TTC estimation performance when the object moved in a plane parallel to the observer. Meanwhile, the impact of background orientation and motion speed showed significant interactions.
... As a new form of road tra c marking, the three-dimensional crosswalk could indeed attract drivers' attention and alertness and bright better deceleration effect [4,5], but it might also cause some drivers to be highly nervous and thus made emergency braking behavior, which might lead to serious tra c accidents [39]. It might also cause cognitive and recognition di culties and distractions, which could also lead to safety hazards when pedestrians or drivers take them for granted [5,40]. In the present study, from the perspective of motion perception, by comparing the performance of TTC estimation in different dimensional backgrounds, it was concluded that although the accuracy of TTC estimation did not show differences in different dimensional backgrounds, it showed a greater tendency of overestimation in the background of three-dimensional. ...
Background
Motion perception is an essential skill for individuals in everyday life, and estimating when a moving object will reach a given position is a very important ability. In previous studies, most research on motion perception have been conducted under background-free condition when the stimulus moved in a plane parallel to the observer. In real-life situations, people’s perception of the motion state of objects is usually done under different visual noise. Based on the occlusion paradigm, this study aimed to investigate whether different background information and motion speed affect the trend and accuracy of time-to-collision (TTC) estimation when stimuli move in a plane parallel to the observer.
Methods
35 college students(mean age = 20.94, SD = 2.95, range = 18-28years) participated in experiment 1, and used a 2 (background orientation: horizontal, vertical) × 3 (motion speed: slow, medium, fast) two-factor within-subjects experimental design to explore the effect of different line segment orientations and motion speed on TTC estimation performance; 36 college students(mean age = 20.81, SD = 2.82, range = 18-28years) participated in experiment 2, and used a 2 (background dimension: two-dimensional background, three-dimensional background) × 3 (motion speed: slow, medium, fast) two-factor within-subjects experimental design to explore the effect of different background dimensions and motion speed on the performance of TTC estimation. The data were analyzed using SPSS 25.0.
Results
The results revealed that: (1) The TTC was underestimated for the slow speed condition and overestimated for the medium and fast speed conditions. (2) The highest accuracy of TTC estimation was obtained for the fast condition. (3) The TTC were overestimated for the vertical background condition and underestimated for the horizontal background condition. (4) The TTC were more accurately estimated for the vertical line segment background in the slow condition and the horizontal line segment background in the medium speed condition. (5) Compared to the two-dimensional background, the TTC was overestimated in the three-dimensional background.
Conclusions
Object motion speed affected the TTC estimation performance, and different background information affected the TTC estimation performance when the object moved in a plane parallel to the observer. Meanwhile, the impact of background orientation and motion speed showed significant interactions.
... Besides, do not deny that there are some drivers that do not pay attention while driving. Those distracted drivers will take longer time to road sign and hazards, this cause them to react slowly when approaching this road crossing [10]. Furthermore, there are also drivers tried to exceed speed limit where they realise they were late to class or behind schedule [11]. ...
Intersection is a function of parsing and altering traffic movement. The safety of vehicle maneuvres at the junction depends on the minimum speed. The purpose of this study is to identify the effectiveness of the usage of temporary speed hump (3D visual effect) to reduce vehicles speed approaching a Priority Junction. This study was conducted at three (3) different residential locations namely Taman Murni, Kampung Merdeka and Taman Bahagia Koperasi in Batu Pahat area. These intersections were chosen because it connects one housing area to another and acts as a short-pass to a destination. Based on the observational activity, there were some traffic conflicting and potential for accidents at the intersection as well. The speed data were collected using laser guns and filled into special forms including date, location, weather, start and end time of observation and also the category of vehicles passed through the intersection. A hypothesis test was conduct to analyze the vehicle speed data before and after installation of the temporary a new 3D visual effect of speed hump. The results were analyzed using the Chi-Square test in Statistical Package for Science Social (SPSS) software. The Chi-Square analysis demonstrates that the effectiveness of using temporary a new 3D visual effect of speed hump is significant statistically (p<0.05, Chi-sq= 291.575). Majority vehicles (74%) were complied with speed limit when approaching intersection compared to 26% of vehicles who do not to do so. In addition, there was decline in the number of uninterrupted vehicles can be seen after parking traffic. Therefore, the study confirmed that drivers who speeding over the speed limit zones before approaching the intersection might be intervened after the installation of the new 3D visual effect of speed hump.
