Experimental research on the effectiveness of speed reduction markings based on driving simulation: A case study

2013 ◽  
Vol 60 ◽  
pp. 211-218 ◽  
Author(s):  
Han Ding ◽  
Xiaohua Zhao ◽  
Jian Rong ◽  
Jianming Ma
Keyword(s):  
Experimental Research ◽  
Driving Simulation ◽  
Speed Reduction

scholarly journals Experimental Research on the Effectiveness of Speed Reduction Markings based on Drivers’ Operating Performance: A Driving Simulation Study

2021 ◽  
Keyword(s):  
Experimental Research ◽  
Repeated Measures ◽  
Driving Simulator ◽  
Operating Performance ◽  
Travel Speed ◽  
Driving Simulation ◽  
Operating Frequency ◽  
Brake Pedal ◽  
Speed Reduction ◽  
Contrast Analysis

Abstract. Speed reduction markings (SRMs), which are widely used on highways and urban roads in China, are designed to inform drivers of the upcoming road conditions and thus encourage them to reduce travel speed. The objective of this paper is to test the effectiveness of SRMs on drivers’ operating performance and decision to decelerate in downhill segments on urban roads. Data of gas and brake pedal use was collected in a driving simulator experiment, and a subjective questionnaire survey was conducted. Two indicators—the operating frequency and operating power—were proposed to evaluate drivers’ operating performance due to SRMs. Results of the subjective questionnaire study showed that the majority of subjects were affected by SRMs while driving through downhill segments with distinct roadway grades (3%, 2%, 1.5% and 1% in experimental scenarios). In terms of the operating frequency, the results of the analysis of variance with repeated measures (rANOVA) and the contrast analysis (S-N-K method) showed that transverse speed reduction markings (TSRMs) were significantly effective in influencing drivers’ frequency of letting off the gas pedal when roadway grades of downhill segments were 3%, 2%, and 1.5% (p<0.05), while longitudinal speed reduction markings (LSRMs) had little effects; both types of SRMs are effective in increasing the frequency of pressing the brake pedal in all four downhill segments. For the operating power, the gas pedal power was significantly affected by TSRMs in all four roadway scenarios; TSRMs also tended to increase the brake pedal power when the roadway grades were 2% and 1.5%, while both types of SRMs had similar effects in road sections with roadway grades of 3%.

scholarly journals PENERAPAN PBL MELALUI PEMBUATAN TAMAN RUMPUT PADA MATERI LINGKARAN DI KELAS VIII

2019 ◽  
Vol 2 (1) ◽  
pp. 1-11
Author(s):  
Dian Septa Novari ◽  
Indah Widyaningrum ◽  
Widiawati W.
Keyword(s):  
Student Learning ◽  
Learning Outcomes ◽  
Experimental Research ◽  
Student Learning Outcomes ◽  
Average Value ◽  
Class Viii ◽  
The Creation ◽  
Pbl Model

This study aims to determine 1) the student's activity during the implementation of PBL models and 2) student learning outcomes after the implementation of PBL models through the creation of grass park on the material circle in class VIII SMP Negeri 1 Pagaralam. This research is an experimental research category one shot case study involving 32 students of class VIII SMP Negeri 1 Pagaralam. The results showed that the activity of students during the loading applied to the model PBL through grass park is categorized as very active seen from the activity of visual, verbal, listening, metrics, and writing. While student learning outcomes after the implementation of the PBL model through the creation of grass park are categorized very well as indicated by the average value of students. Thus, the PBL model is very suitable for use in mathematics, especially in the area of a circle of matter.

scholarly journals School Physics Assistance Learning using the TAI (Team Assisted Individualization) Model: Analysis of Student Evaluation Capabilities

2020 ◽  
Vol 5 (1) ◽  
pp. 45
Author(s):  
Umi Pratiwi
Keyword(s):  
Data Collection ◽  
Experimental Research ◽  
Student Evaluation ◽  
Case Study Research ◽  
Learning Model ◽  
Real Field ◽  
Placement Tests ◽  
Teacher Students ◽  
Partner Schools

The ability of prospective teacher students obtained in lectures needs to be developed to be applied in learning in schools. One of them is by applying the TAI learning model. The application of the TAI (Team AssistedIndividualization) learning model is implemented to analyze the student's evaluation ability in the implementation of school assistance and and to add to the experience of students in the real field. This effort was carried out with four stages of TAI namely Teams, Placement Tests, Student Creative, and Teaching Group. At each stage of the TAI model, students provide a description and analysis in the form of activity reports and presentations. The research conducted is a description of collaborating with experimental research, one-shot case study research on students of physics level 5 and data collection techniques with observation and interviews.The results showed that students had the highest ability to evaluate the ability to provide solutions to the obstacles found in partner schools and the lowest ability to find a settlement procedure that was suitable for the scope of the implementation of school assistance.

Thermal delousing in anaesthetised small Atlantic salmon (Salmo salar) post-smolts: A case study showing the viability of anaesthesia prior to delousing for improved welfare during treatment for salmon lice

2021 ◽  
Vol 30 (2) ◽  
pp. 117-120
Author(s):  
O Folkedal ◽  
SO Utskot ◽  
J Nilsson
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Experimental Research ◽  
Acute Stress ◽  
Small Scale ◽  
Lepeophtheirus Salmonis ◽  
Salmon Lice ◽  
Sequence Of Events ◽  
Present Case Study

Delousing treatment for salmon sea lice (Lepeophtheirus salmonis) is considered a significant welfare concern in farming of Atlantic salmon ( Salmo salar), where both industry and legislative bodies prompt for better methods. Currently, the most common method is thermal delousing, where fish are crowded, pumped into a vessel and exposed to ∼28–34°C for ∼30 s. Physical collisions occurring as a result of a loss of behavioural control lead to acute stress. Crowding triggers vigorous escape behaviour as salmon respond not only to treatment but also to being channeled to and from the treatment zone. A sequence of events considered to cause mortality and poor welfare. The present case study was motivated by an urgent need for delousing in groups of small salmon post-smolts in experimental research. For this purpose, a simple, small-scale system for thermal delousing was constructed, including anaesthesia to alleviate behavioural responses. The anaesthetised fish showed little behavioural response to thermal treatment, strong appetite within hours, and negligible mortality. The described method is regarded as a welfare-friendly alternative to industrial delousing in smaller fish groups, for example, in experimental research. We would encourage detailed research aimed towards gaining a deeper under-standing of the welfare effects of anaesthesia prior to treatment for delousing.

scholarly journals Jealousy Incarnate: Quiet Ego, Competitive Desire, and the Fictional Intelligence of Long-Term Mating in a Romantic K-Drama

2020 ◽  
Vol 10 (9) ◽  
pp. 134
Author(s):  
Lorenza Lucchi Basili ◽  
Pier Luigi Sacco
Keyword(s):  
Social Cognition ◽  
Experimental Research ◽  
Theoretical Approach ◽  
Male Partner ◽  
Quiet Ego ◽  
The One ◽  
Mating Interaction ◽  
Human Mating

In this paper, we analyze a K-drama aired by the Korean TV network SBS in 2016, Jealousy Incarnate, as a case study of the application of the Tie-Up Theory to a romantic narrative as a form of simulation of human mating processes with social cognition valence. We find that this case provides us with an example of a mating process where the choice of the male partner by the female lead character does not privilege the one that should be preferable on the basis of the standard prediction of the experimental research on human mating. This discrepancy is a signal of a basic limitation of experimental research, that highlights the subjects’ preferences for abstract potential partners but is not able to fully account for the mechanisms that lead to the choice of a specific partner in a specific mating interaction. We argue that the narrative simulation viewpoint provides insights that are complementary to those of experimental research, and that a more comprehensive theoretical approach, such as the one offered by the Tie-Up Theory, may be helpful to account for both perspectives.

Experimental research on safety impacts of the inside shoulder based on driving simulation

2015 ◽  
Vol 76 ◽  
pp. 6-14 ◽  
Author(s):  
Xiaohua Zhao ◽  
Han Ding ◽  
Yiping Wu ◽  
Jianming Ma ◽  
Liande Zhong
Keyword(s):  
Experimental Research ◽  
Driving Simulation

Performance over Time of Adhesive Systems for Bonding Ceramic Tiles – A Detailed Case Study

2015 ◽  
Vol 3 ◽  
pp. 183-193
Author(s):  
V.P. de Freitas ◽  
H. Corvacho ◽  
M. Quintela ◽  
João M.P.Q. Delgado
Keyword(s):  
Experimental Research ◽  
Adhesive Bonding ◽  
Accelerated Ageing ◽  
Adhesive Systems ◽  
Ceramic Tiles ◽  
Detailed Case ◽  
Building Physics ◽  
Over Time

An efficient adhesive bonding of exterior ceramic tiles applied on façades is an obvious important factor to ensure the safety and the durability of the façade. The failure of adhesive bonding is a common issue with relevant technical and economic consequences.The aim of this work is to present an evaluation of the performance overtime of adhesives systems in bonded ceramic tiles on façades, based on extensive experimental research works carried out at the Laboratory of Building Physics (LFC).A detailed case study is presented which evaluate the performance of adhesives systems to be used on the façades of a building located near the sea. For this purpose, accelerated ageing tests are performed following two different ageing procedures, allowing the comparison of the performance over time of the systems under analysis).

scholarly journals Computation-based Dynamic Driving Simulation for Evaluation of Mountain Roads with Complex Shapes: A Case Study

2016 ◽  
Vol 137 ◽  
pp. 210-219 ◽  
Author(s):  
Hai-bo Shu ◽  
Yi-ming Shao ◽  
Wei Lin ◽  
Jin Xu
Keyword(s):  
Driving Simulation ◽  
Complex Shapes

scholarly journals Impact of traffic calming on acoustic climate in street surrounding

2014 ◽  
Vol 13 (1) ◽  
pp. 235-252
Author(s):  
Janusz Bohatkiewicz ◽  
Wioleta Czarnecka ◽  
Krzysztof Jamrozik ◽  
Sebastian Biernacki ◽  
Maciej Hałucha
Keyword(s):  
Road Traffic ◽  
Positive Impact ◽  
Development Program ◽  
Negative Influence ◽  
Calculation Model ◽  
General Outline ◽  
Speed Reduction ◽  
Traffic Calming ◽  
Traffic Volumes

The paper presents the methods to improve safety and quality of life of people living in the neighborhood of roads and the situation of road users by means of traffic calming. The focus is kept on positive impact of traffic calming measures on acoustic climate in the surrounding of roads. The paper also contains the characteristics of selected impacts of road traffic on the environment together with a general outline of traffic calming as an instrument to mitigate the negative influence. Various possibilities to frame the acoustic climate and reduce transport-related inconvenience by means of different traffic calming methods are present as well. Then a case study (regional road No 824 in Puławy) is used to assess the effectiveness of specific solutions of comprehensive traffic calming with regard to speed reduction and abatement of noise emissions. Analyses are based on measurements’ results (traffic volumes, driving speeds and noise levels) and on acoustic calculations performed by the authors as part of their own study (internal research & development program of EKKOM). On the basis of measurements’ results and calculations the paper also addresses the problem of lack of correction factors related to traffic calming in the calculation model and the one of errors in noise modeling while preparing the case study.

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